6044( 16) - 09/09/96 14:11 - [ 0] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6044 Version: 16 Check-in Date: 09-Sep-1996 13:56:38 1.Proposal Title: THE EVOLUTION OF CARBON ABUNDANCES IN THE ISM OF SPIRAL GALAXIES ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle Interstellar Medium GO 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Donald R. Garnett UNIVERSITY OF MINNESOTA CoI: Evan D. Skillman University of Minnesota N CoI: Elena Terlevich Institute of Astronomy N CoI: Roberto J. Terlevich Royal Greenwich Observatory N CoI: Silvia Torres-Peimbert Instituto de Astronomia N CoI: Reginald J. Dufour Rice University N CoI: Manuel Peimbert Instituto de Astronomia N CoI: Gregory A. Shields University of Texas N ------------------------------------------------------------------------------------ 6. Abstract We will use the FOS to observe UV emission lines of carbon from H II regions in the spiral galaxies NGC 2403 and M101; this program was awarded observing time with medium priority in Cycle 3, but of six scheduled observations, only one was obtained before the HST refurbishment. These measurements, combined with corresponding optical spectra, will be used to derive carbon abundances and C/O ratios. Our measurements will provide the first reliable sample of data on carbon abundances in spiral galaxies. We will use the derived abundances to study the time evolution of C/O across the galaxies and compare the results with those obtained from observations of metal-poor irregular galaxies obtained by us in Cycle 2, and with theoretical predictions for the behavior of C/O in spirals. In particular, we will make detailed comparisons between the behavior of C, N, He, and O in the outer parts of the spirals with that observed in irregular galaxies of similar abundances; such comparison will tell us if the evolution of the outer disks of spirals has proceeded in similar fashion as for the irregulars. We will compare the gradients for C and N across the galaxies to obtain an improved estimate of the fraction of N produced by primary nucleosynthesis. Finally, we will take deep HAlpha and O III images in parallel with the FOS observations to study the structure of the ionized gas in these galaxies at high resolution. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will use FOS/RD with the 0sec point 86 circular aperture to measure the UV emission lines C III 1907, 1909Angstrom\\ and C II 2324-2329 Angstrom\\ in six giant H II regions in NGC 2403 and M101, using G190H and G270H. We will also obtain short exposure spectra of each region with G400H and G570H, from which we will measure line strengths for HBeta, HAlpha, O II 3727, and O III 5007 Angstrom. The optical spectra, taken through the same aperture as the UV spectra, will provide the correct photometric scaling between the UV line fluxes and the optical line fluxes, and allow us to measure the appropriate interstellar reddening. Then, using physical conditions derived from ground- based optical data, we will determine gas-phase abundances for C^++, C^+, O^+, and O^++ from the FOS spectra. By combining the UV spectral data with excellent ground-based optical spectra and photoionization modeling, we can derive accurate C/O abundance ratios. The results from our Cycle 2 program (Garnett et al. 1994) demonstrate that we can predict the necessary amount of observing time with confidence. The extended emission-line targets will be acquired as in Cycle 2, with blind offsets from nearby stars, determined from ground-based HAlpha imaging. As in Cycle 2, we derive exposure times based on estimates of the UV emission line using measured optical line fluxes, assuming a solar C/O ratio, while UV continuum fluxes are estimated from the optical continuum and the HBeta equivalent width. Relatively long exposure times are required; UV emission lines are high-excitation and therefore weak compared to optical lines, and the UV lines are superposed on a much stronger continuum. We require S/N ratios of 5-10 for the emission lines to derive useful abundances. Table 1 lists estimated exposure times in G190H and G570H; exposure times for G270H and G400H will be comparable to those for G190H and G570H, respectively. Following the spectroscopic observations, a one-minute white light exposure through the 3sec point 7 aperture will be obtained to verify the pointing. During the long G190H and G270H exposures, we will take deep F502N and F656N images with WFPC2 plus short F555W and F675W images in parallel for each field. We expect to obtain 20-40 minute total exposures (2-4 frames) in each narrow-band filter for each field. Real Time Justification ----------------------- NGC 2403 lies in a zone with 11 CVZ opportunities, the maximum number available in the Northern Hemisphere. Therefore, we have planned our observations of NGC 2403 on that basis. Utilizing the CVZ allows us to reduce our request from 23 orbits to 17 orbits. For our six targets in Table 1, we have excellent ground- based optical spectra, some already published (e.g., Torres- Peimbert et al. 1989). These deep spectra provide accurate fluxes for weak lines, such as the temperature sensitive O III 4363 Angstrom\\ line, from which we can accurately derive interstellar reddening, nebular physical conditions, and oxygen abundances. Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS __Diagnosti Email: , ------------------------------------------------------------------------------------ 6044( 16) - 09/09/96 14:11 - [ 1] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC2403-VS9- STAR PLATE-ID=00MC, RA = 7H 36M J2000 V = 0 V = 13.6+/-0.4 OFFSET 16.58S +/- 0.19S, DEC = +65D 33' B-V = 0.54+/-0.2 31.6" +/- 0.5" Comments: BINARY ACQUISTION FOR TARGET 2 2 NGC2403-VS9 EXT-MEDIUM,HII REGION PLATE-ID=00MC, RA = 7H 36M J2000 V = +130 F-LINE(1909)=3.0e-16 28.63S +/- 0.05S, DEC = +65D 33' F-CONT(1909)=1.3e-16 49.0" +/- 0.3" W-LINE(1909)=4.0 F-LINE(4861)=1.8e-15 F-CONT(4861)=6.0e-18 W-LINE(4861)=10 Comments: BRIGHTEST KNOT IN EXTENDED H II REGION; FLUXES SCALED, TO 0.86" APERTURE 3 NGC2403-VS9- UNIDENTIFIED,PARALLEL R = 480" +/- 60", PA = 255D, J2000 V = +130 SURF-LINE(6563)=1.0e-16 FIELD FIELD REGION, FROM 2 SURF-LINE(5007)=1.0e-16 Comments: INTERCEPTS REGION OF SPIRAL ARM NORTH OF GALAXY NUCLEUS 4 NGC2403-VS44 STAR PLATE-ID=00MC, RA = 7H 37M 8.91S J2000 V = 0 V = 14.9+/-0.4 -OFFSET +/- 0.19S, DEC = +65D 37' 21.7" B-V = 0.0+/-0.2 +/- 0.5" Comments: BINARY ACQ FOR TARGET 5 VS44 5 NGC2403-VS44 EXT-MEDIUM,HII REGION PLATE-ID=00MC, RA = 7H 37M 6.82S J2000 V = +130 F-LINE(1909)=3.0e-16 +/- 0.15S, DEC = 65D 36' 38.7" F-CONT(1909)=1.3e-16 +/- 0.3" W-LINE(1909)=4.0 F-LINE(4861)=1.8e-15 F-CONT(4861)=6.0e-18 W-LINE(4861)=10 Comments: BRIGHTEST KNOT IN GIANT H II REGION; FLUXES SCALED, TO 0.86" APERTURE 6 NGC2403-VS44 UNIDENTIFIED,PARALLEL R = 480" +/- 60", PA = 295D, J2000 V = +130 SURF-LINE(6563)=1.0e-16 -FIELD FIELD REGION, FROM 5 SURF-LINE(5007)=1.0e-16 Comments: INTERCEPTS SPIRAL ARM WNW OF NUCLEUS ALONG MAJOR AXIS 7 NGC2403-VS38 STAR PLATE-ID=00MC, RA = 7H 37M 8.91S J2000 V = 0 V = 14.9+/-0.4 -OFFSET +/- 0.19S, DEC = +65D 37' 21.7" B-V = 0.0+/-0.2 +/- 0.5" Comments: BINARY ACQ FOR TARGET 8, VS38 8 NGC2403-VS38 EXT-MEDIUM,HII REGION PLATE-ID=00MC, RA = 7H 36M J2000 V = +130 F-LINE(1909)=4.8e-17 52.13S +/- 0.15S, DEC = 65D 36' F-CONT(1909)=3.8e-16 48.5" +/- 0.3" W-LINE(1909)=4.0 F-LINE(4861)=3.0e-15 F-CONT(4861)=1.5e-17 W-LINE(4861)=10 Comments: BRIGHTEST KNOT IN GIANT H II REGION; FLUXES SCALED, TO 0.86" APERTURE 9 NGC2403-VS38 UNIDENTIFIED,PARALLEL R = 480" +/- 60", PA = 295D, J2000 V = +130 SURF-LINE(6563)=1.0e-16 -FIELD FIELD REGION, FROM 8 SURF-LINE(5007)=1.0e-16 Comments: INTERCEPTS SPIRAL ARM WNW OF GALAXY NUCLEUS ALONG MAJOR AXIS 10 NGC5471- STAR,G V-IV PLATE-ID=003A, RA = 14H 04M J2000 V = 0 V = 13.9+/-0.1 OFFSET 20.411S +/- 0.05S, DEC = +54D B-V = 0.8+/-0.2 23' 24.7" +/- 0.5" Comments: BINARY ACQ FOR TARGET 11, NGC5471 6044( 16) - 09/09/96 14:11 - [ 2] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC5471 EXT-MEDIUM,HII REGION PLATE-ID=003A, RA = 14H 4M J2000 V = +240 F-LINE(1909)=4.8e-17 29.02S +/- 0.05S, DEC = 54D 23' F-CONT(1909)=3.8e-16 48.8" +/- 0.3" W-LINE(1909)=4.0 F-LINE(4861)=3.0e-15 F-CONT(4861)=1.5e-17 W-LINE(4861)=10 Comments: BRIGHTEST KNOT IN GIANT H II COMPLEX; FLUXES ARE FOR, 0.86" APERTURE 12 NGC5471- UNIDENTIFIED,PARALLEL R = 480" +/- 60", PA = 173D, J2000 V = +240 SURF-LINE(6563)=1.0e-16 FIELD FIELD REGION, FROM 11 SURF-LINE(5007)=1.0e-16 Comments: SAMPLES WEAK SPIRAL ARM NNE OF NUCLEUS 13 NGC5461- STAR, M V-IV PLATE-ID=003A, RA = 14H 3M J2000 V = 0 V = 16.4+/-0.2 OFFSET 47.32S +/- 0.05S, DEC = +54D 17' B-V = 1.9+/-0.3 42.6" +/- 0.5" Comments: BINARY ACQ FOR TARGET 14, NGC 5461 14 NGC5461 EXT-MEDIUM,HII REGION PLATE-ID=003A, RA = 14H 3M J2000 V = +240 F-LINE(1909)=4.8e-17 41.62S +/- 0.05S, DEC = 54D 19' F-CONT(1909)=3.8e-16 4.4" +/- 0.5" W-LINE(1909)=4.0 F-LINE(4861)=3.0e-15 F-CONT(4861)=1.5e-17 W-LINE(4861)=10 Comments: BRIGHTEST KNOT IN GIANT H II COMPLEX; FLUXES ARE SCALED, FOR 0.86" APERTURE 15 NGC5461- UNIDENTIFIED,PARALLEL R = 480" +/- 60", PA = 172D, J2000 V = +240 SURF-LINE(6563)=1.0e-16 FIELD FIELD REGION, FROM 14 SURF-LINE(5007)=1.0e-16 Comments: FIELD INCLUDES SPIRAL ARMS NW OF GALAXY NUCLEUS 16 NGC5455- STAR,G V-IV PLATE-ID=003A, RA = 14H 03M J2000 V = 0 V = 16.8+/-0.2 OFFSET 5.71S +/- 0.05S, DEC = +54D 15' B-V = 0.6+/-0.3 19.8" +/- 0.5" Comments: BINARY ACQ FOR TARGET 17, NGC 5455 17 NGC5455 EXT-MEDIUM,HII REGION PLATE-ID=003A, RA = 14H 3M 1.16S J2000 V = +240 F-LINE(1909)=4.8e-17 +/- 0.05S, DEC = 54D 14' 27.0" F-CONT(1909)=3.8e-16 +/- 0.5" W-LINE(1909)=4.0 F-LINE(4861)=3.0e-15 F-CONT(4861)=1.5e-17 W-LINE(4861)=10 Comments: BRIGHTEST KNOT IN GIANT H II REGION; FLUXES ARE FOR, 0.86" APERTURE 18 NGC5455- UNIDENTIFIED,PARALLEL R = 480" +/- 60", PA = 240D, J2000 V = +240 SURF-LINE(6563)=1.0e-16 FIELD FIELD REGION, FROM 17 SURF-LINE(5007)=1.0e-16 Comments: SAMPLES FIELD NORTH OF NGC 5457 NUCLEUS 6044( 16) - 09/09/96 14:11 - [ 3] Visit: 01 Visit Requirements: ORIENTation 250D to 260D CVZ On Hold Comments: Additional Comments: ORIENT PLACES WFPC2 AT PA = 255D FROM FOS/RD Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC2403-VS9 FOS/RD ACQ/BIN 4.3 MIRROR 1 1.25 S ONBOARD ACQuisition FOR 2 -OFFSET ARY ,4,6,8,9 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC2403-VS9 FOS/RD ACCUM 1.0-PAI G270H STEP-PATT=SINGLE 1 2430 S R ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC2403-VS9 WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 2000 S PARallel WITH 2 -FIELD Comments: CR-SPLIT = NO; Parallel with exposure 2, NGC2403-9, G270H ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC2403-VS9 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 3600 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC2403-VS9 WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 2000 S PARallel WITH 4 -FIELD Comments: CR-SPLIT = NO; parallel with exposure 3, NGC2403-VS9, G190H ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC2403-VS9 FOS/RD ACCUM 1.0-PAI G400H STEP-PATT=SINGLE 1 360 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC2403-VS9 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 500 S PARallel WITH 6 -FIELD Comments: CR-SPLIT = NO; parallel with exposure 4, NGC2403-VS9, G400H; overlaps, with exposure 5 , G570H ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC2403-VS9 FOS/RD ACCUM 1.0-PAI G570H STEP-PATT=SINGLE 1 360 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC2403-VS9 FOS/RD ACQ 4.3 MIRROR 1 60 S SAME POSition AS 2 Comments: VERIFICATION OF FIELD FOLLOWING SPECTRA ------------------------------------------------------------------------------------------------------------------------------------ 6044( 16) - 09/09/96 14:11 - [ 4] Visit: 02 Visit Requirements: ORIENTation 155D TO 175D CVZ On Hold Comments: Additional Comments: ORIENT PLACES WFPC2 AT PA = 295D FROM FOS/RD Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC2403-VS4 FOS/RD ACQ/BIN 4.3 MIRROR 1 2.43 S ONBOARD ACQuisition FOR 2 4-OFFSET ARY ,4,6,8,9 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC2403-VS4 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 3460 S 4 R ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC2403-VS4 WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 2000 S PARallel WITH 2 4-FIELD Comments: CR-SPLIT = NO; parallel with exposure 2, NGC2403-VS44, G190H ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC2403-VS4 FOS/RD ACCUM 1.0-PAI G270H STEP-PATT=SINGLE 1 2560 S SAME POSition AS 2 4 R ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC2403-VS4 WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 2000 S PARallel WITH 4 4-FIELD Comments: CR-SPLIT = NO; parallel with exposure 3, NGC2403-VS44, G270H ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC2403-VS4 FOS/RD ACCUM 1.0-PAI G400H STEP-PATT=SINGLE 1 390 S SAME POSition AS 2 4 R ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC2403-VS4 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 600 S PARallel WITH 6 4-FIELD Comments: CR-SPLIT = NO; parallel with exposure 4, NGC2403-VS44, G400H; overlaps, with exposure 5, G570H ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC2403-VS4 FOS/RD ACCUM 1.0-PAI G570H STEP-PATT=SINGLE 1 300 S SAME POSition AS 2 4 R ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC2403-VS4 FOS/RD ACQ 4.3 MIRROR 1 60 S SAME POSition AS 2 4 Comments: VERIFICATION OF FIELD FOLLOWING SPECTRA ------------------------------------------------------------------------------------------------------------------------------------ 6044( 16) - 09/09/96 14:11 - [ 5] Visit: 03 Visit Requirements: ORIENTation 155D TO 175D CVZ On Hold Comments: Additional Comments: ORIENT PLACES WFPC2 AT PA = 295D FROM FOS/RD Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC2403-VS3 FOS/RD ACQ/BIN 4.3 MIRROR 1 2.43 S ONBOARD ACQuisition FOR 2 8-OFFSET ARY ,4,6,8,9,11 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC2403-VS3 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 3540 S 8 R ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC2403-VS3 WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 2000 S PARallel WITH 2 8-FIELD Comments: CR-SPLIT = NO; parallel with exposure 2, NGC2403-VS38, G190H ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC2403-VS3 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 3540 S 8 R ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC2403-VS3 WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 2000 S PARallel WITH 4 8-FIELD Comments: CR-SPLIT = NO; parallel with exposure 4, NGC2403-VS38, G190H ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC2403-VS3 FOS/RD ACCUM 1.0-PAI G570H STEP-PATT=SINGLE 1 330 S SAME POSition AS 2 8 R ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC2403-VS3 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 500 S PARallel WITH 6 8-FIELD Comments: CR-SPLIT = NO; parallel with exposure 6, NGC2403-VS38, G570H; overlaps, with exposure 8, G400H ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC2403-VS3 FOS/RD ACCUM 1.0-PAI G400H STEP-PATT=SINGLE 1 390 S SAME POSition AS 2 8 R ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC2403-VS3 FOS/RD ACCUM 1.0-PAI G270H STEP-PATT=SINGLE 1 3840 S SAME POSition AS 2 8 R ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC2403-VS3 WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 2000 S PARallel WITH 9 8-FIELD Comments: CR-SPLIT = NO; parallel with exposure 5, NGC2403-VS38, G270H ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC2403-VS3 FOS/RD ACQ 4.3 MIRROR 1 60 S SAME POSition AS 2 8 Comments: VERIFICATION OF FIELD FOLLOWING SPECTRA ------------------------------------------------------------------------------------------------------------------------------------ 6044( 16) - 09/09/96 14:11 - [ 6] Visit: 04 Visit Requirements: ORIENTation 171D TO 174D On Hold Comments: Additional Comments: ORIENT PLACES WFPC2 AT PA = 110D FROM FOS/RD Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5471-OFF FOS/RD ACQ/BIN 4.3 MIRROR 1 1.94 S ONBOARD ACQuisition FOR 2 SET ARY ,4,6,8,9,11 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5471 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 1500 S R Comments: Exposure split between two orbits ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC5471-FIE WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 1400 S PARallel WITH 2 LD Comments: CR-SPLIT = NO; parallel with exposure 2, NGC5471, G190H, part 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC5471 FOS/RD ACCUM 1.0-PAI G190H 1 1260 S R ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC5471-FIE WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 1400 S PARallel WITH 4 LD Comments: CR-SPLIT = NO; parallel with exposure 4, NGC5471, G190H, part 2 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC5471 FOS/RD ACCUM 1.0-PAI G400H STEP-PATT=SINGLE 1 390 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC5471-FIE WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 500 S PARallel WITH 6 LD Comments: CR-SPLIT = NO; parallel with exposure 6, NGC5471, G400H ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC5471 FOS/RD ACCUM 1.0-PAI G570H STEP-PATT=SINGLE 1 330 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC5471 FOS/RD ACCUM 1.0-PAI G270H STEP-PATT=SINGLE 1 1200 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC5471-FIE WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 1400 S PARallel WITH 9 LD Comments: CR-SPLIT = NO; parallel with exposure 9, NGC5471, G270H ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC5471 FOS/RD ACQ 4.3 MIRROR 1 60 S SAME POSition AS 2 Comments: VERIFICATION OF FIELD FOLLOWING SPECTRA ------------------------------------------------------------------------------------------------------------------------------------ 6044( 16) - 09/09/96 14:11 - [ 7] Visit: 05 Visit Requirements: ORIENTation 169D TO 174D On Hold Comments: Additional Comments: ORIENT PLACES WFPC2 AT PA = 110D FROM FOS/RD Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5461-OFF FOS/RD ACQ/BIN 4.3 MIRROR 1 30 S ONBOARD ACQuisition FOR 2 SET ARY ,4,6,8,9,11 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5461 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 1500 S R Comments: Exposure split between two orbits ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC5461-FIE WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 1400 S PARallel WITH 2 LD Comments: CR-SPLIT = NO; parallel with exposure 2, NGC5461, G190H, part 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC5461 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 1260 S R Comments: Exposure split between two orbits ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC5461-FIE WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 1400 S PARallel WITH 4 LD Comments: CR-SPLIT = NO; parallel with exposure 4, NGC5461, G190H, part 2 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC5461 FOS/RD ACCUM 1.0-PAI G400H STEP-PATT=SINGLE 1 390 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC5461-FIE WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 500 S PARallel WITH 6 LD Comments: CR-SPLIT = NO; parallel with exposure 6, NGC5461, G400H ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC5461 FOS/RD ACCUM 1.0-PAI G570H STEP-PATT=SINGLE 1 300 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC5461 FOS/RD ACCUM 1.0-PAI G270H STEP-PATT=SINGLE 1 1200 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC5461-FIE WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 1400 S PARallel WITH 9 LD Comments: CR-SPLIT = NO; parallel with exposure 9, NGC5461, G270H ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC5461 FOS/RD ACQ 4.3 MIRROR 1 60 S SAME POSition AS 2 Comments: VERIFICATION OF FIELD FOLLOWING SPECTRA ------------------------------------------------------------------------------------------------------------------------------------ 6044( 16) - 09/09/96 14:11 - [ 8] Visit: 06 Visit Requirements: ORIENTation 223D TO 229D On Hold Comments: Additional Comments: ORIENT PLACES WFPC2 N OF GALAXY NUCLEUS Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC5455-OFF FOS/RD ACQ/BIN 4.3 MIRROR 1 24.5 S ONBOARD ACQuisition FOR 2 SET ARY ,4,6,8,10,12,14 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC5455 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 1680 S R Comments: Exposure split between two orbits ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC5455-FIE WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 1800 S PARallel WITH 2 LD Comments: CR-SPLIT = NO; parallel with exposure 2, NGC5455, G190H, part 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC5455 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 2580 S R Comments: Exposure split between two orbits ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC5455-FIE WFPC2 IMAGE WFALL F656N CR-SPLIT=NO 1 1800 S PARallel WITH 4 LD Comments: CR-SPLIT = NO; parallel with exposure 4, NGC5455, G190H, part 2 ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC5455 FOS/RD ACCUM 1.0-PAI G400H STEP-PATT=SINGLE 1 600 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC5455-FIE WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 400 S PARallel WITH 6 LD Comments: CR-SPLIT = NO; parallel with exposure 6, NGC5455, G400H ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC5455 FOS/RD ACCUM 1.0-PAI G270H STEP-PATT=SINGLE 1 1500 S SAME POSition AS 2 R Comments: Exposure split between two orbits ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC5455-FIE WFPC2 IMAGE WFALL F502N CR-SPLIT=NO 1 1500 S PARallel WITH 8 LD Comments: CR-SPLIT = NO; parallel with exposure 8, NGC5455, G270H, part 1 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC5455 FOS/RD ACCUM 1.0-PAI G270H STEP-PATT=SINGLE 1 1080 S SAME POSition AS 2 R Comments: Exposure split between two orbits ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC5455-FIE WFPC2 IMAGE WFALL F502N CR-SPLIT=NO 1 1200 S PARallel WITH 10 LD Comments: CR-SPLIT = NO; parallel with exposure 10, NGC5455, G270H, part 2 ------------------------------------------------------------------------------------------------------------------------------------ 6044( 16) - 09/09/96 14:11 - [ 9] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC5455 FOS/RD ACCUM 1.0-PAI G570H STEP-PATT=SINGLE 1 300 S SAME POSition AS 2 R ------------------------------------------------------------------------------------------------------------------------------------ 13 NGC5455-FIE WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 400 S PARallel WITH 12 LD Comments: CR-SPLIT = NO; parallel with exposure 12, NGC5455, G570H ------------------------------------------------------------------------------------------------------------------------------------ 14 NGC5455 FOS/RD ACQ 4.3 MIRROR 1 60 S SAME POSition AS 2 Comments: VERIFICATION OF FIELD FOLLOWING SPECTRA ------------------------------------------------------------------------------------------------------------------------------------ 6044( 16) - 09/09/96 14:11 - [ 10] Visit: 52 Visit Requirements: ORIENTation 155D TO 175D CVZ On Hold Comments: Additional Comments: ORIENT PLACES WFPC2 AT PA = 295D FROM FOS/RD Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC2403-VS4 FOS/RD ACQ/BIN 4.3 MIRROR 1 3.5 S ONBOARD ACQuisition FOR 2 4-OFFSET ARY ,4,6,8,9 ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC2403-VS4 FOS/RD ACCUM 1.0-PAI G190H STEP-PATT=SINGLE 1 3460 S 4 R ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC2403-VS4 WFPC2 IMAGE WFALL F502N CR-SPLIT=NO 1 2000 S PARallel WITH 2 4-FIELD Comments: CR-SPLIT = NO; parallel with exposure 2, NGC2403-VS44, G190H ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC2403-VS4 FOS/RD ACCUM 1.0-PAI G270H STEP-PATT=SINGLE 1 2560 S SAME POSition AS 2 4 R ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC2403-VS4 WFPC2 IMAGE WFALL F502N CR-SPLIT=NO 1 2000 S PARallel WITH 4 4-FIELD Comments: CR-SPLIT = NO; parallel with exposure 3, NGC2403-VS44, G270H ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC2403-VS4 FOS/RD ACCUM 1.0-PAI G400H STEP-PATT=SINGLE 1 390 S SAME POSition AS 2 4 R ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC2403-VS4 WFPC2 IMAGE WFALL F547M CR-SPLIT=NO 1 600 S PARallel WITH 6 4-FIELD Comments: CR-SPLIT = NO; parallel with exposure 4, NGC2403-VS44, G400H; overlaps, with exposure 5, G570H ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC2403-VS4 FOS/RD ACCUM 1.0-PAI G570H STEP-PATT=SINGLE 1 300 S SAME POSition AS 2 4 R ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC2403-VS4 FOS/RD ACQ 4.3 MIRROR 1 60 S SAME POSition AS 2 4 Comments: VERIFICATION OF FIELD FOLLOWING SPECTRA ------------------------------------------------------------------------------------------------------------------------------------ 6044( 16) - 09/09/96 14:11 - [ 11] Summary Form for Proposal 6044 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/BINARY ACCUM IMAGE ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters STEP-PATT=SINGLE CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category Interstellar Medium ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENTation 250D to 260D CVZ ONBOARD ACQuisition FOR 2,4,6,8,9 PARallel WITH 2 SAME POSition AS 2 PARallel WITH 4 PARallel WITH 6 ORIENTation 155D TO 175D CVZ ONBOARD ACQuisition FOR 2,4,6,8,9,11 PARallel WITH 9 ORIENTation 171D TO 174D ORIENTation 169D TO 174D ORIENTation 223D TO 229D ONBOARD ACQuisition FOR 2,4,6,8,10,12,14 PARallel WITH 8 PARallel WITH 10 PARallel WITH 12 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G270H F656N G190H G400H F547M G570H F502N ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC2403-VS9-OFFSET NGC2403-VS9 NGC2403-VS9-FIELD NGC2403-VS44-OFFSET NGC2403-VS44 NGC2403-VS44-FIELD NGC2403-VS38-OFFSET NGC2403-VS38 NGC2403-VS38-FIELD NGC5471-OFFSET NGC5471 NGC5471-FIELD NGC5461-OFFSET NGC5461 NGC5461-FIELD NGC5455-OFFSET NGC5455 NGC5455-FIELD ------------------------------------------------------------------------------------------------------------------------------------