11690( 4) - 22-Sep-2009 14:12:54 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11690 Version: 4 Check-in Time: 22-Sep-2009 14:12:54 STScI Edit Number: 2 Title EG And: Providing the Missing Link Required for Modelling Red Giant Mass-loss ------------------------------------------------------------------------------------ Type Cycle GO 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Brian R. Espey University of Dublin, Trinity College CoI: Dr. Cian Crowley University of Dublin, Trinity College N CoI: Mr. Joseph P. Roche University of Dublin, Trinity College N CoI: Dr. Peter Hauschildt Universitat Hamburg, Hamburger Sternwarte N CoI: Dr. Takeru Suzuki University of Tokyo, Graduate School of N Science CoI: Dr. Stephan McCandliss The Johns Hopkins University N ------------------------------------------------------------------------------------ Abstract For the majority of red giant stars the basic mass-loss processes at work are unknown. Indeed, for stars of spectral types between K0 III and M5-M6 III, much remains unknown about the regions above the visible photosphere and the transportation of the processed material outwards to the ISM. Eclipsing symbiotic binary systems, consisting of an evolved giant in orbit with a white dwarf, provide an opportunity to take advantage of the finite size of the hot component to probe different levels of the chromosphere and wind acceleration region in absorption. This provides spatially resolved thermal, ionisation and dynamic information on the wind which can then be compared against predictions of hydrodynamical stellar atmosphere codes. The symbiotic binary EG And can be considered as a rosetta stone for understanding the winds of these objects. The system is ideal on a number of counts for utilising the ultraviolet eclipse of the white dwarf (WD) component to probe, layer-by-layer, the thermal and dynamic conditions at the very base of the wind and chromosphere of the RG. This information is vital for constraining, testing and calibrating the new generation of cool giant wind+chromosphere models and is not possible to obtain for isolated RGs. This team has studied the UV eclipses of this system in depth and detail, however in order to definitively constrain the wind acceleration profile and identify the location of the temperature rise just above the photosphere we require 4 STIS E140M observations of EG And at specific orbital phases. We are also requesting a E230M observation of an isolated spectral standard, corresponding to the RG in the binary, which will help place the EG And results into the context of the general RG population from analysis of the MgII wind diagnostic lines. ------------------------------------------------------------------------------------ Observations Description ------------------------ Observations are for 3 targets: 2 stars (HD1013 and HD148349) are spectral analogues for the red giant under study in the symbiotic binary HD4174 (EG And). HD148349 was in the original proposal, but the radial velocity of this star may preclude observation of the wind structure in MgII, so HD1013 has been added as a backup. MgII details are the main requirement, but the addition of the G140L observations will permit detection or the setting of upper limits on 11690( 4) - 22-Sep-2009 14:12:54 - [ 2] additional chromospheric features. In addition, a G430L observation has been inserted so that a calibration of the G430L data taken for all ACQ/PEAK observations of EG And (including historical data in the archive) through the 0.2x0.06 aperture can be obtained. EG And will be observed at a number of phases to record the absorptipon features as the impact parameter of our sightline to the white dwarf secondary changes as it orbits the red giant primary. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11690( 4) - 22-Sep-2009 14:12:54 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 HD4174 STAR, COMPOSITE RA=00H44M37.1869S +/- 0.1", J2000 V = -95 V = 7.23 +/- 0.25 f(3200)=7.0e-14; SPECTRAL TYPE, DEC=+40D40'45.71" +/- 0.1" f(1380 Ang) ~ 3e-13 outside eclipse INTERACTING BINARY, M III-I, SYMBIOTIC STAR Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.00912 0.01505 0.00148 ------------------------------------------------------------------------------------------------------------------------------------ 2 HD148349 STAR, M III-I RA=16H27M43.4564S +/- 0.1", J2000 V = +99 V = 5.27 f(3200)=1.5e-13; DEC=-07D35'52.55" +/- 0.1" f(1450)=7.5e-16(est) Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 -0.00095 -0.15341 0.00643 ------------------------------------------------------------------------------------------------------------------------------------ 3 HD1013 STAR, M III-I RA=00H14M36.1645S +/- 0.1", J2000 V = -46 V = 4.82 f(3200)=3.5e-13; DEC=+20D12'24.13" +/- 0.1" f(1450)=.7e-15(est) Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 +0.09066 +0.0188 0.01001 ------------------------------------------------------------------------------------------------------------------------------------ 11690( 4) - 22-Sep-2009 14:12:54 - [ 4] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 HD148349 STIS/CCD ACQ F25ND3 MIRROR 1 0.1 S SEQ 1-4 NON-INT Comments: STIS80038 Bruzual M3III model with E(B-V)=0.05 and V=5.3 has S/N=341.19 (time to saturation 0.76s) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD148349 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 1 1.5 S K Comments: ETC STIS79982 S/N=110 at 4451A brightest pixel 7, 200 CCDGAIN=4, CR-SPLIT=1, 52x0.05 Bruzual M3III E(B-V)=0.05 for V=5.3 ------------------------------------------------------------------------------------------------------------------------------------ 3 HD148349 STIS/NUV ACCUM 0.2X0.06 E230M 2707 1 1332 S -MAMA Comments: ETC run STIS79975 with M3 III Bruzual model normalized to 1.5e-13 at 3200A after E(B-V)=0.05 gives S/N=16 at 2790A ------------------------------------------------------------------------------------------------------------------------------------ 4 HD148349 STIS/FUV ACCUM 52X0.2D1 G140L 1425 1 150.0 S -MAMA Comments: ETC run STIS79976 S/N=6 in 150s at 1450A for 7.5e-16 flat continuum ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ HD148349 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD148349 2 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 none none none none 1 N/A K HD148349 3 STIS/NUV ACCUM 0.2X0.06 E230M 2707 none none none none 1 N/A -MAMA HD148349 4 STIS/FUV ACCUM 52X0.2D1 G140L 1425 none none none none 1 N/A -MAMA 11690( 4) - 22-Sep-2009 14:12:54 - [ 5] Visit: 02 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 HD1013 STIS/CCD ACQ F25ND3 MIRROR 1 0.1 S SEQ 1-5 NON-INT Comments: ETC STIS79978 S/N=305 at 4300A with E(B-V)=0.05 and V=4.8 ------------------------------------------------------------------------------------------------------------------------------------ 2 HD1013 STIS/CCD ACCUM 52X0.2 G430L 4300 CR-SPLIT=NO 1 0.5 S Comments: ETCID 79716 / ETC STIS79981 S/N=140/resn element at 4451A brightest pixel 11, 000 E(B-V)=0.05 Bruzual M3III V=4.8 52x0.05 aperture, CCDGAIN=4, CR-SPLIT=1 texp=0.5 ------------------------------------------------------------------------------------------------------------------------------------ 3 HD1013 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 1 0.1 S K Comments: ETC STIS79985 S/N=46.7 in 0.1s Bruzual M3III V=4.8, E(B-V)=0.05; CCDGAIN=1, CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 4 HD1013 STIS/NUV ACCUM 0.2X0.06 E230M 2707 1 1100 S -MAMA Comments: ETC run with M3 III Bruzual model normalized to 3e-14 at 3200A gives S/N=10 @ 2810A ------------------------------------------------------------------------------------------------------------------------------------ 5 HD1013 STIS/FUV ACCUM 52X2D1 G140L 1425 1 248 S -MAMA Comments: STISID80097 S/N=4 per resolution element for 250s with flat continuum of 1.7e-15 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ HD1013 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD1013 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none none 1 N/A HD1013 3 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 none none none none 1 N/A K HD1013 4 STIS/NUV ACCUM 0.2X0.06 E230M 2707 none none none none 1 N/A -MAMA HD1013 5 STIS/FUV ACCUM 52X2D1 G140L 1425 none none none none 1 N/A -MAMA 11690( 4) - 22-Sep-2009 14:12:54 - [ 6] Visit: 03 Visit Requirements: BETWEEN 15-AUG-2009:00:00:01 AND 18-AUG-2009:23:59:59 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 HD4174 STIS/CCD ACQ F25ND3 MIRROR 1 0.1 S Comments: STIS80038 Bruzual M3III model with E(B-V)=0.05 and V=7.3 has S/N=94.05 (time to saturation 4.8s) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD4174 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 1 4 S K Comments: STIS80099 S/N=125 per resolution element in 4s for Bruzual M3III model, E(B-V)=0.05 and V=7.3 ------------------------------------------------------------------------------------------------------------------------------------ 3 HD4174 STIS/NUV ACCUM 0.2X0.06 E230M 2707 1 1938 S -MAMA Comments: Exposure based on previous Cycle 11 data ------------------------------------------------------------------------------------------------------------------------------------ 4 HD4174 STIS/FUV ACCUM 0.2X0.06 E140M 1425 1 3099 S -MAMA Comments: Exposure based on previous Cycle 11 data ------------------------------------------------------------------------------------------------------------------------------------ 5 HD4174 STIS/FUV ACCUM 0.2X0.06 E140M 1425 1 3126 S -MAMA Comments: ETC STIS79986 S/N=1.6/resn element at 1425A E140M 0.2x0.06 Texp=3100s ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ HD4174 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD4174 2 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 none none none none 1 N/A K HD4174 3 STIS/NUV ACCUM 0.2X0.06 E230M 2707 none none none none 1 N/A -MAMA HD4174 4 STIS/FUV ACCUM 0.2X0.06 E140M 1425 none none none none 2 N/A -MAMA HD4174 5 STIS/FUV ACCUM 0.2X0.06 E140M 1425 none none none none 3 N/A -MAMA 11690( 4) - 22-Sep-2009 14:12:54 - [ 7] Visit: 04 Visit Requirements: AFTER 03 BY 84 H TO 7 D On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 HD4174 STIS/CCD ACQ F25ND3 MIRROR 1 0.1 S Comments: STIS80038 Bruzual M3III model with E(B-V)=0.05 and V=7.3 has S/N=94.05 (time to saturation 4.8s) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD4174 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 1 4 S K Comments: STIS80099 S/N=125 per resolution element in 4s for Bruzual M3III model, E(B-V)=0.05 and V=7.3 ------------------------------------------------------------------------------------------------------------------------------------ 3 HD4174 STIS/NUV ACCUM 0.2X0.06 E230M 2707 1 1938 S -MAMA Comments: Exposure based on previous Cycle 11 data ------------------------------------------------------------------------------------------------------------------------------------ 4 HD4174 STIS/FUV ACCUM 0.2X0.06 E140M 1425 1 3126 S -MAMA Comments: Exposure based on previous Cycle 11 data ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ HD4174 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD4174 2 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 none none none none 1 N/A K HD4174 3 STIS/NUV ACCUM 0.2X0.06 E230M 2707 none none none none 1 N/A -MAMA HD4174 4 STIS/FUV ACCUM 0.2X0.06 E140M 1425 none none none none 2 N/A -MAMA 11690( 4) - 22-Sep-2009 14:12:54 - [ 8] Visit: 05 Visit Requirements: BETWEEN 01-OCT-2009:00:00:01 AND 05-OCT-2009:23:59:59 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 HD4174 STIS/CCD ACQ F25ND3 MIRROR 1 0.1 S SEQ 1-3 NON-INT Comments: STIS80038 Bruzual M3III model has S/N=94.05 (time to saturation 4.8s) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD4174 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 1 4 S K Comments: STIS80099 S/N=125 per resolution element in 4s for Bruzual M3III model, E(B-V)=0.05 and V=7.3 ------------------------------------------------------------------------------------------------------------------------------------ 3 HD4174 STIS/FUV ACCUM 0.2X0.06 E140M 1425 1 1948 S -MAMA Comments: STIS ETC79989 S/N=8 at 1425 flat spectrum f_lambda = 2e-13 ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ HD4174 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD4174 2 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 none none none none 1 N/A K HD4174 3 STIS/FUV ACCUM 0.2X0.06 E140M 1425 none none none none 1 N/A -MAMA 11690( 4) - 22-Sep-2009 14:12:54 - [ 9] Visit: 06 Visit Requirements: AFTER 05 BY 2 D TO 6 D On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 HD4174 STIS/CCD ACQ F25ND3 MIRROR 1 0.1 S SEQ 1-4 NON-INT Comments: STIS80038 Bruzual M3III model with E(B-V)=0.05 and V=7.3 has S/N=94.05 (time to saturation 4.8s) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD4174 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 1 4 S K Comments: STIS80099 S/N=125 per resolution element in 4s for Bruzual M3III model, E(B-V)=0.05 and V=7.3 ------------------------------------------------------------------------------------------------------------------------------------ 3 HD4174 STIS/FUV ACCUM 0.2X0.06 E140M 1425 1 1081 S -MAMA Comments: Exposure based on previous Cycle 11 data ------------------------------------------------------------------------------------------------------------------------------------ 4 HD4174 STIS/NUV ACCUM 0.2X0.06 E230M 2707 1 500 S -MAMA Comments: Exposure based on previous Cycle 11 data ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ HD4174 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD4174 2 STIS/CCD ACQ/PEA 0.2X0.06 G430L 4300 none none none none 1 N/A K HD4174 3 STIS/FUV ACCUM 0.2X0.06 E140M 1425 none none none none 1 N/A -MAMA HD4174 4 STIS/NUV ACCUM 0.2X0.06 E230M 2707 none none none none 1 N/A -MAMA 11690( 4) - 22-Sep-2009 14:12:54 - [ 10] Summary Form for Proposal 11690 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.2X0.06, 52X0.2, 52X0.2D1, 52X2D1, F25ND3 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/FUV-MAMA, STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/PEAK ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 03 BY 84 H TO 7 D, AFTER 05 BY 2 D TO 6 D, BETWEEN 01-OCT-2009:00:00:01 AND 05-OCT-2009:23:59:59, BETWEEN 15-AUG-2009:00:00:01 AND 18-AUG-2009:23:59:59, SEQ 1-3 NON-INT, SEQ 1-4 NON-INT, SEQ 1-5 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements E140M, E230M, G140L, G430L, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD1013, HD148349, HD4174 ------------------------------------------------------------------------------------------------------------------------------------