9458( 10) - 07/14/03 11:57 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 9458 Version: 10 Check-in Date: 14-Jul-2003 11:53:40 1.Proposal Title: Probing the Formation & Evolution of M31's Outer Disk and Halo ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle GO 11 ------------------------------------------------------------------------------------ 4. Investigators Contact? PI: Annette Ferguson Kapteyn Institute CoI: Dr Rodrigo Ibata Observatoire de Strasbourg N CoI: Dr Mike Irwin Institute of Astronomy, Cambridge N CoI: Dr Rachel Johnson European Southern Observatory N CoI: Dr Kathryn Johnston Wesleyan University N CoI: Dr Geraint Lewis Anglo-Australian Observatory N CoI: Dr Nial Tanvir University of Hertfordshire N ------------------------------------------------------------------------------------ 5. Abstract The fossil record of galaxy formation and evolution is imprinted on the spatial distribution, ages and metallicities of galactic stellar populations. The observations proposed here build significantly upon our extensive ground-based and archival WFPC2 programs and aim to constrain the formation and evolution of our nearest large neighbour, M31. We propose deep imaging of 8 fields in the outer disk and halo, several of which have been identified from our panoramic ground-based CCD survey (covering ~ 26 square degrees) to possess significant stellar density and/or potential metallicity variations. Deep colour-magnitude diagrams reaching ~2-3 magnitudes below the horizontal branch will be constructed, allowing detailed characterization of the luminous evolved stellar populations via the red giant metallicity distribution, the luminous asymptotic giant branch, the horizontal branch morphology and the red clump, as well as the detection of a main-sequence that may be present from any younger component. Our primary goals are to: (i) quantify the stellar population variations associated with M31 halo substructure, including the newly- discovered giant stellar stream, and (ii) derive stringent constraints on the age and metallicity of stars in the far outer disk. These observations will directly address two key predictions of cold dark matter hierarchical galaxy formation models. ------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 2] Observations Description ------------------------ Our objective is to obtain deep colour-magnitude diagrams (CMDs) at eight locations in the far outer disk and halo of M31 to characterize in detail the old and intermediate-age resolved stellar populations. Our eight fields include six `halo' fields and two outer disk fields. One of the halo fields is centered on the giant stellar stream discovered in the course of our ground-based survey (Ibata Etal 2001); other fields sample the halo at additional locations where substructure (spatial density and/or mean RGB colour variations) is indicated by our wide-field data. Outer disk fields sample the stellar disk at ~25 kpc and the extreme tip of the stellar warp. In order to study stellar population variations associated with halo substructure, we require high photometric accuracy and completeness to ~2 magnitudes below the level of the M31 horizontal branch, which is measured to be barV ~25.2 from studies of the halo population (Holland et al 1996). We will image in the broad-V (F606W) and I (F814W) filters, the former choice being motivated by the significant throughput gains provided by the wider bandpass. Using the ACS ETC, we calculate V~ 27 can be reached with a S/N~ 10 in 1 orbit with F606W and 2 orbits with F814W providing excellent sensitivity to both blue and red luminous evolved stars (e.g. RGB, RC and HB). This assumes ~ 2300 s visibility at this declination, after accounting for reasonable overheads. We will obtain two separate pointings in each of the three outermost halo fields (see observation summary) in order to improve the statistics of sparsely-populated regions of the CMD. Based on horizontal branch counts in various WFPC2 fields, the expected fall off in RGB counts from our ground- based survey data and the increased area of ACS/WFC, this strategy leads us to expect a minimum of ~ 100 stars on the extended horizontal branch (i.e. blueward of the red clump), modulo second parameter effects, for all fields studied. Given the relatively small exposure times required for these additional fields (3 orbits each), this does not significantly add to our total orbit request. For the halo observations, we will dither each exposure by small integer pixel amounts and obtain a minimum of 3 separate exposures per filter. Our exposure time calculations assume (E(B-V)=0.08 (Schlegel Etal 1998)). The deeper disk exposures are designed to detect and study the main sequence down to turn-off ages of 7-8 Gyr (i.e. mid-late F stars). We calculate that 4 orbits with F606W and 6 orbits with F814W are sufficient to reach a V=28 with a S/N~ 7-8. For these exposures, we will use sub-integer pixel dithers to optimise S/N on faint stars. Our past experience with WFPC2 data indicates that crowding will not be a problem, especially with the higher resolution provided by ACS. Internal extinction in the outer disk is not expected to be a concern due to the low metallicities of these regions, and can be estimated using either HII region spectra or high resolution HI maps (e.g. Unwin 1980). WFPC2 parallel observations are also requested. The WFPC2 data will suffer from lower completeness than the deeper ACS data, though will help to increase our horizontal branch (and luminous RGB) detections by ~ 30%. Since the horizontal branch statistics will be poisson-noise limited, the WFPC2 parallel observations will add valuable extra objects to the survey. Real Time Justification ----------------------- 9458( 10) - 07/14/03 11:57 - [ 3] Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 M31- GALAXY, SPIRAL, HALO RA=00H 41M 11.6S +/- 1.0", J2000 V = 19.0+/-0.5 004112+42294 DEC=42D 29' 43.1" +/- 1.0", V-I = 1.0+/-0.5 3 PLATE-ID=01JV Coordinate Source: GSC_SURVEY_PLATE Comments: flux data refer to the brightest stars expected in this field 2 M31- GALAXY, SPIRAL, HALO RA=00H 46M 10.0S +/- 1.0", J2000 V = 19.0+/-0.5 004610+43020 DEC=43D 02' 00.0" +/- 1.0", V-I = 1.0+/-0.5 0 PLATE-ID=01JV Coordinate Source: GSC_SURVEY_PLATE Comments: flux data refers to the brightest stars expected in this field 3 M31- GALAXY, SPIRAL, HALO RA=00H 35M 28.0S +/- 1.0", J2000 V = 19.0+/-0.5 003528+39361 DEC=39D 36' 19.1" +/- 1.0" V-I = 1.0+/-0.5 9 Coordinate Source: GSC_SURVEY_PLATE Comments: flux data refer to the brightest stars expected in this field 4 M31- GALAXY, SPIRAL, HALO RA=00H 44M 15.5S +/- 1.0", J2000 V = 19.0+/-0.5 004416+39533 DEC=39D 53' 30" +/- 1.0" V-I = 1.0+/-0.5 0 Coordinate Source: GSC_SURVEY_PLATE Comments: flux data refer to the brightest stars expected in this field 5 M31- GALAXY, SPIRAL, HALO RA=00H 45M 05.0S +/- 1.0", J2000 V = 19.0+/-0.5 004505+39480 DEC=39D 48' 00" +/- 1.0" V-I = 1.0+/-0.5 0 Coordinate Source: GSC_SURVEY_PLATE Comments: flux data refer to the brightest stars expected in this field 6 M31- GALAXY, SPIRAL, HALO RA=00H 49M 59.4S +/- 1.0", J2000 V = 19.0+/-0.5 004959+41285 DEC=41D 28' 55.5" +/- 1.0" V-I = 1.0+/-0.5 5 Coordinate Source: GSC_SURVEY_PLATE Comments: flux data refer to the brightest stars expected in this field 7 M31- GALAXY, SPIRAL, HALO RA=00H 50M 5.7S +/- 1.0", J2000 V = 19.0+/-0.5 005006+41392 DEC=41D 39' 21.4" +/- 1.0" V-I = 1.0+/-0.5 1 Coordinate Source: GSC_SURVEY_PLATE Comments: flux data refer to the brightest stars expected in this field 8 M31- GALAXY, SPIRAL, HALO RA=00H 48M 8.4S +/- 1.0", J2000 V = 19.0+/-0.5 004808+40253 DEC=40D 25' 30" +/- 1.0" V-I = 1.0+/-0.5 0 Coordinate Source: GUIDE_STAR_CATALOG Comments: flux data refer to the brightest stars expected in this field 9458( 10) - 07/14/03 11:57 - [ 5] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 9 M31- GALAXY, SPIRAL, HALO RA=00H 48M 47.8S +/- 1.0", J2000 V = 19.0+/-0.5 004848+40204 DEC=40D 20' 44.6" +/- 1.0" V-I = 1.0+/-0.5 5 Coordinate Source: GSC_SURVEY_PLATE Comments: flux data refer to the brightest stars expected in this field 10 M31- GALAXY, SPIRAL, DISK RA=00H 36M 38.3S +/- 1.0", J2000 V = 19.0+/-0.5 003638+39432 DEC=39D 43' 25.8" +/- 1.0" V-I = 1.0+/-0.5 6 Coordinate Source: GSC_SURVEY_PLATE Comments: flux data refer to the brightest stars expected in this field 11 M31- GALAXY, SPIRAL, DISK RA=00H 38M 5.1S +/- 1.0", J2000 V = 19.0+/-0.5 003805+39375 DEC=39D 37' 55.0" +/- 1.0" V-I = 1.0+/-0.5 5 Coordinate Source: GUIDE_STAR_CATALOG Comments: flux data refer to the brightest stars expected in this field 9458( 10) - 07/14/03 11:57 - [ 6] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.1459 Coordinate_Frame POS-TARG Pattern_Orient 47.17 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 3 Primary_Pattern Secondary_Pattern Pattern_Type LINE ACS-WFC-DITHER-BOX Pattern_Purpose DITHER DITHER Number_Of_Points 2 4 Point_Spacing 0.150 0.265 Coordinate_Frame POS-TARG POS-TARG Pattern_Orient 34.13 20.67 Center_Pattern NO NO ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 7] Visit: 01 Visit Priority: Visit Requirements: VISIBILITY INTERVAL 56 M On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-004112+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1220 S PAR 15 WITH 10 422943 C ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-004112+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1350 S PAR 25 WITH 20 POS TARG 422943 C 0.0992, 0.1070 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-004112+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1360 S PAR 35 WITH 30 POS TARG 422943 C 0.1984, 0.2140 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 40 M31-004112+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1360 S PAR 45 WITH 40 POS TARG 422943 C 0.2976, 0.3210 ------------------------------------------------------------------------------------------------------------------------------------ 45 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 50 M31-004112+ ACS/WF ACCUM WFC F606W GAIN=2,CR-SPLIT=NO 1 825 S PAR 55 WITH 50 PATTERN 1 422943 C 50-55 ------------------------------------------------------------------------------------------------------------------------------------ 55 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 8] Visit: 02 Visit Priority: Visit Requirements: VISIBILITY INTERVAL 56 M On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-004610+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1220 S PAR 15 WITH 10 430200 C ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-004610+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1350 S PAR 25 WITH 20 POS TARG 430200 C 0.0992, 0.1070 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-004610+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1360 S PAR 35 WITH 30 POS TARG 430200 C 0.1984, 0.2140 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 40 M31-004610+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1360 S PAR 45 WITH 40 POS TARG 430200 C 0.2976, 0.3210 ------------------------------------------------------------------------------------------------------------------------------------ 45 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 50 M31-004610+ ACS/WF ACCUM WFC F606W GAIN=2,CR-SPLIT=NO 1 825 S PAR 55 WITH 50 PATTERN 1 430200 C 50-55 ------------------------------------------------------------------------------------------------------------------------------------ 55 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 9] Visit: 03 Visit Priority: Visit Requirements: VISIBILITY INTERVAL 56 M On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-003528+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1200 S PAR 15 WITH 10 393619 C ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-003528+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 25 WITH 20 POS TARG 393619 C 0.0992, 0.1070 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-003528+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 35 WITH 30 POS TARG 393619 C 0.1984, 0.2140 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 40 M31-003528+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1350 S PAR 45 WITH 40 POS TARG 393619 C 0.2976, 0.3210 ------------------------------------------------------------------------------------------------------------------------------------ 45 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 50 M31-003528+ ACS/WF ACCUM WFC F606W GAIN=2,CR-SPLIT=NO 1 810 S PAR 55 WITH 50 PATTERN 1 393619 C 50-55 ------------------------------------------------------------------------------------------------------------------------------------ 55 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 10] Visit: 04 Visit Priority: Visit Requirements: VISIBILITY INTERVAL 56 M On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-004416+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1200 S PAR 15 WITH 10 395330 C ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-004416+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 25 WITH 20 POS TARG 395330 C 0.0992, 0.1070 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-004416+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 35 WITH 30 POS TARG 395330 C 0.1984, 0.2140 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 40 M31-004416+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1350 S PAR 45 WITH 40 POS TARG 395330 C 0.2976, 0.3210 ------------------------------------------------------------------------------------------------------------------------------------ 45 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 50 M31-004416+ ACS/WF ACCUM WFC F606W GAIN=2,CR-SPLIT=NO 1 810 S PAR 55 WITH 50 PATTERN 1 395330 C 50-55 ------------------------------------------------------------------------------------------------------------------------------------ 55 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 11] Visit: 05 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-004505+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1200 S PAR 15 WITH 10 394800 C ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-004505+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 25 WITH 20 POS TARG 394800 C 0.0992, 0.1070 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-004505+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 35 WITH 30 POS TARG 394800 C 0.1984, 0.2140 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 40 M31-004505+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1350 S PAR 45 WITH 40 POS TARG 394800 C 0.2976, 0.3210 ------------------------------------------------------------------------------------------------------------------------------------ 45 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 50 M31-004505+ ACS/WF ACCUM WFC F606W GAIN=2,CR-SPLIT=NO 1 810 S PAR 55 WITH 50 PATTERN 1 394800 C 50-55 ------------------------------------------------------------------------------------------------------------------------------------ 55 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 12] Visit: 06 Visit Priority: Visit Requirements: VISIBILITY INTERVAL 56 M On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-004959+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1220 S PAR 15 WITH 10 412855 C ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-004959+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1350 S PAR 25 WITH 20 POS TARG 412855 C 0.0992, 0.1070 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-004959+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1360 S PAR 35 WITH 30 POS TARG 412855 C 0.1984, 0.2140 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 40 M31-004959+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1360 S PAR 45 WITH 40 POS TARG 412855 C 0.2976, 0.3210 ------------------------------------------------------------------------------------------------------------------------------------ 45 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 50 M31-004959+ ACS/WF ACCUM WFC F606W GAIN=2,CR-SPLIT=NO 1 825 S PAR 55 WITH 50 PATTERN 1 412855 C 50-55 ------------------------------------------------------------------------------------------------------------------------------------ 55 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 13] Visit: 07 Visit Priority: Visit Requirements: ORIENT 13D TO 340D On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-005006+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1200 S PAR 15 WITH 10 413921 C ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-005006+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 25 WITH 20 POS TARG 413921 C 0.0992, 0.1070 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-005006+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 35 WITH 30 POS TARG 413921 C 0.1984, 0.2140 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 40 M31-005006+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 45 WITH 40 POS TARG 413921 C 0.2976, 0.3210 ------------------------------------------------------------------------------------------------------------------------------------ 45 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 50 M31-005006+ ACS/WF ACCUM WFC F606W GAIN=2,CR-SPLIT=NO 1 800 S PAR 55 WITH 50 PATTERN 1 413921 C 50-55 ------------------------------------------------------------------------------------------------------------------------------------ 55 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 14] Visit: 08 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-004808+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1200 S PAR 15 WITH 10 402530 C ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-004808+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 25 WITH 20 POS TARG 402530 C 0.0992, 0.1070 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-004808+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 35 WITH 30 POS TARG 402530 C 0.1984, 0.2140 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 40 M31-004808+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 45 WITH 40 POS TARG 402530 C 0.2976, 0.3210 ------------------------------------------------------------------------------------------------------------------------------------ 45 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 50 M31-004808+ ACS/WF ACCUM WFC F606W GAIN=2,CR-SPLIT=NO 1 800 S PAR 55 WITH 50 PATTERN 1 402530 C 50-55 ------------------------------------------------------------------------------------------------------------------------------------ 55 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 15] Visit: 09 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-004848+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1200 S PAR 15 WITH 10 402045 C ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-004848+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 25 WITH 20 POS TARG 402045 C 0.0992, 0.1070 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-004848+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 35 WITH 30 POS TARG 402045 C 0.1984, 0.2140 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 40 M31-004848+ ACS/WF ACCUM WFC F814W GAIN=2,CR-SPLIT=NO 1 1300 S PAR 45 WITH 40 POS TARG 402045 C 0.2976, 0.3210 ------------------------------------------------------------------------------------------------------------------------------------ 45 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 50 M31-004848+ ACS/WF ACCUM WFC F606W GAIN=2,CR-SPLIT=NO 1 800 S PAR 55 WITH 50 PATTERN 1 402045 C 50-55 ------------------------------------------------------------------------------------------------------------------------------------ 55 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 600 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 16] Visit: 10 Visit Priority: Visit Requirements: ORIENT 130D TO 100D On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-003638+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1200 S PAR 15 WITH 10 POS TARG 394326 C 0.1736, 0.1873 ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-003638+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1200 S PAR 25 WITH 20 POS TARG 394326 C 0.1736,-0.1607 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1000 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-003638+ ACS/WF ACCUM WFC F606W CR-SPLIT=NO,GAIN=2 1 1250 S PAR 35 WITH 30 PATTERN 3 394326 C 30-35 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 1000 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 17] Visit: 11 Visit Priority: Visit Requirements: SAME ORIENT AS 10 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-003638+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1200 S PAR 15 WITH 10 POS TARG 394326 C -0.1736, 0.1607 ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-003638+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1200 S PAR 25 WITH 20 POS TARG 394326 C -0.1736,-0.1873 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1000 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-003638+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1280 S PAR 35 WITH 30 PATTERN 3 394326 C 30-35 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1000 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 18] Visit: 12 Visit Priority: Visit Requirements: VISIBILITY INTERVAL 56 M On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-003805+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1250 S PAR 15 WITH 10 POS TARG 393755 C 0.1736, 0.1873 ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-003805+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1250 S PAR 25 WITH 20 POS TARG 393755 C 0.1736,-0.1607 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1000 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-003805+ ACS/WF ACCUM WFC F606W CR-SPLIT=NO,GAIN=2 1 1310 S PAR 35 WITH 30 PATTERN 3 393755 C 30-35 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F606W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 19] Visit: 13 Visit Priority: Visit Requirements: SAME ORIENT AS 12 VISIBILITY INTERVAL 56 M On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-003805+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1250 S PAR 15 WITH 10 POS TARG 393755 C -0.1736, 0.1607 ------------------------------------------------------------------------------------------------------------------------------------ 15 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 20 M31-003805+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1250 S PAR 25 WITH 20 POS TARG 393755 C -0.1736,-0.1873 ------------------------------------------------------------------------------------------------------------------------------------ 25 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1000 S ------------------------------------------------------------------------------------------------------------------------------------ 30 M31-003805+ ACS/WF ACCUM WFC F814W CR-SPLIT=NO,GAIN=2 1 1330 S PAR 35 WITH 30 PATTERN 3 393755 C 30-35 ------------------------------------------------------------------------------------------------------------------------------------ 35 ANY WFPC2 IMAGE WFALL F814W ATD-GAIN=7,CR-SPLIT=NO 1 1100 S ------------------------------------------------------------------------------------------------------------------------------------ 9458( 10) - 07/14/03 11:57 - [ 20] Summary Form for Proposal 9458 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC WFALL ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters GAIN=2 CR-SPLIT=NO ATD-GAIN=7 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements VISIBILITY INTERVAL 56 M PAR 15 WITH 10 PAR 25 WITH 20 POS TARG 0.0992, 0.1070 PAR 35 WITH 30 POS TARG 0.1984, 0.2140 PAR 45 WITH 40 POS TARG 0.2976, 0.3210 PAR 55 WITH 50 PATTERN 1 50-55 ORIENT 13D TO 340D ORIENT 130D TO 100D PAR 15 WITH 10 POS TARG 0.1736, 0.1873 PAR 25 WITH 20 POS TARG 0.1736,-0.1607 PAR 35 WITH 30 PATTERN 3 30-35 SAME ORIENT AS 10 PAR 15 WITH 10 POS TARG -0.1736, 0.1607 PAR 25 WITH 20 POS TARG -0.1736,-0.1873 SAME ORIENT AS 12 VISIBILITY INTERVAL 56 M ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F814W F606W ------------------------------------------------------------------------------------------------------------------------------------ Target Names M31-004112+422943 ANY M31-004610+430200 M31-003528+393619 M31-004416+395330 M31-004505+394800 M31-004959+412855 M31-005006+413921 M31-004808+402530 M31-004848+402045 M31-003638+394326 M31-003805+393755 ------------------------------------------------------------------------------------------------------------------------------------