Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 3926c Report Date: 09-May-96:18:56 Version: ********** Check-in Date: ********** 1.Proposal Title: VARIABILITY OF HIGH LUMINOSITY STARS - RETAKE OF 1095 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID STELLAR ASTROPHYSICS GTO/HSP 1095 Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Robert C. Bless WISCONSIN, UNIVERSITY OF USA (608)262-1715 ------------------------------------------------------------------------------------ 7. Abstract Some of the most luminous and massive stars in our galaxy and in the Large Magellanic Cloud will be monitored for variability in light. Knowledge of the time scales and amplitudes of luminosity fluctuations can perhaps place useful constraints on various stellar models. Revision History: Received on RPS 9/1/89; Added to SCCS 9/5/89 RPSS V7.2 remote & local - SALM 9/8/89; Text changes & added ACQ to repeat visits - SALM 9/28/89; Move 9 targ to cycle2 - SALM 2/14/90 Move 3 targ to cycle 2; add UV2 obs for P-CYG - SALM 3/26/90; Expanded illegally nested repeat - SALM 6/21/90; Moved REPEAT to USE - SALM 6/28/90; Defer all targets to cycle 1--BJW 11/26/90; Split proposal by cycle--BJW 3/22/91; Changes to observations of HD193237--BJW 6/19/91; Update target list--BJW 6/27/91; Changed PRISM mode to SINGLE; changed all filters to F152M--BJW 9/3/91; ------------------------------------------------------------------------------------ 8. Scientific Key Words: SUPERGIANT, VARIABLE ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 20.00 par: 0 10. Num targs pri: 18 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: HSP ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 3926c PI: Robert C. Bless Proposal Title: VARIABILITY OF HIGH LUMINOSITY STARS - RETAKE OF 1095 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Robert C. Bless WISCONSIN, UNIVERSITY OF USA Joseph F. Dolan NASA, GODDARD SPACE FLIGHT USA CENTER James L. Elliot MASSACHUSETTS INSTITUTE OF USA TECHNOLOGY Edward L. Robinson TEXAS, UNIVERSITY OF USA Richard L. White SPACE TELESCOPE SCIENCE USA INSTITUTE G. W. Van Citters NATIONAL SCIENCE FOUNDATION USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. Three of the first five objects on the target list will be monitored for 30 minutes each on two occasions separated by a few days. Photometry will be done with the beam splitter on UV2 (F145M and F262M). These observations are to be carried out in Cycle 0. Cycle 1 observations will be influenced by the results obtained in Cycle 0. Cycle 0: 3H 30S; Cycle 1: 15 hours. ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. ST is required in order to observe in crowded fields and in the ultraviolet where the luminsoity variations are expected to be larger. ------------------------------------------------------------------------------------ 13. Some of the most luminous stars in the Milky Way and in the Large Magellanic Cloud will be monitored to determine the amplitude and time scales of their luminosity variations. ------------------------------------------------------------------------------------ 11. Address Information Name: ROBERT C. BLESS Category: PI Institution: WISCONSIN, UNIVERSITY OF Address: SPACE ASTRONOMY LAB. 1150 UNIVERSITY AVE. City: MADISON State: WI Zip Code: 53706 Country: USA Telephone: (608)262-1715 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 3926c [ 3] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial |Acqui|FLX| Flux data No | Name | Description | Position |Eqnx | Vel. |Prblm|REF| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 1 HD15570 O4IF IN IC1805 RA = 02H 32M 49.416S +/- 2000 1 V = 8.1+/-0.1 SAO12327 0.5", DEC = +61D 22' 43.292" +/- 0.5" Comments: POSREF = SAO, WITH PM. ------------------------------------------------------------------------------------------------------------------------------------ 2 HD93250 O3V IN TRUMPLER16 RA = 10H 44M 45.184S +/- ^ 1 V = 7.4+/-0.1 SAO238423 0.5", DEC = -59D 33' 54.586" +/- 0.5" Comments: POSREF = SAO, WITH PM. ------------------------------------------------------------------------------------------------------------------------------------ 3 HD152236 B1.5IA+ IN SCO OB1 RA = 16H 53M 59.669S +/- ^ 1 V = 4.8+/-0.1 ZETA-1-SCO SAO227375 0.5", DEC = -42D 21' 43.487" +/- 0.5" Comments: POSREF = SAO, WITH PM. ------------------------------------------------------------------------------------------------------------------------------------ 4 HD164794 O4V IN SGR OB1 RA = 18H 03M 52.392S +/- ^ 1 V = 6.0+/-0.1 9SGR SAO186204 0.5", DEC = -24D 21' 38.354" +/- 0.5" Comments: POSREF = SAO, WITH PM. ------------------------------------------------------------------------------------------------------------------------------------ 5 HD192281 O5VNFP RA = 20H 12M 33.112S +/- ^ 1 V = 7.6+/-0.1 SAO49319 0.5", DEC = +40D 16' 06.043" +/- 0.5" Comments: POSREF = SAO, WITH PM. ------------------------------------------------------------------------------------------------------------------------------------ 6 HD193237 P- B2P RA = 20H 17M 47.07S +/- 2000 1 V = 4.9+/-0.1 CYG 0.5", DEC = +38D 01' 58.9" +/- 0.5" Comments: POSREF = MJTAYLOR. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3926c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 DEFINE # HSP/ ACQ 1 10S 1 # ONBOARD ACQ FOR 2 MON UV2 ------------------------------------------------------------------------------------------------------------------------------------ 2 DEFINE # HSP/ SINGLE 1.0 F152M SAMPLE-TIME=0.1 1 1800S 1 # MON UV2 Comments: TARGETS MUST BE ACQUIRED DURING EACH REPEAT VISIT, UNTIL SYSTEM HAS THE CAPABILITY OF RE-USING GUIDE STARS. ------------------------------------------------------------------------------------------------------------------------------------ 3 DEFINE # HSP/ ACQ DATA- 1 10S 1 # ONBOARD ACQ FOR MONBRT UV2 FORMAT=ANALOG 3.1 ------------------------------------------------------------------------------------------------------------------------------------ 3.1 DEFINE # HSP/ SINGLE 1.0 F152M SAMPLE- 1 1800S 1 # MONBRT UV2 TIME=0.01 Comments: TARGETS MUST BE ACQUIRED DURING EACH REPEAT VISIT, UNTIL SYSTEM HAS THE CAPABILITY OF RE-USING GUIDE STARS. ------------------------------------------------------------------------------------------------------------------------------------ 3.2 DEFINE # HSP/ ACQ DATA- 1 10S 1 # ONBOARD ACQ FOR MONVBRT UV2 FORMAT=ANALOG 3.3 HV-GAIN=G0.5 ------------------------------------------------------------------------------------------------------------------------------------ 3.3 DEFINE # HSP/ SINGLE 1.0 F152M SAMPLE- 1 1800S 1 # MONVBRT UV2 TIME=0.01 DATA-FORMAT=ALL Comments: TARGETS MUST BE ACQUIRED DURING EACH REPEAT VISIT, UNTIL SYSTEM HAS THE CAPABILITY OF RE-USING GUIDE STARS. ------------------------------------------------------------------------------------------------------------------------------------ 4 USE HD15570 2 CYCLE 1 /4-7 MONBRT REPEAT 4 EVERY 3D +/- 1D FOR 1 MORE TIMES ------------------------------------------------------------------------------------------------------------------------------------ 5 USE HD93250 2 REPEAT 5 EVERY 3D MONBRT +/- 1D FOR 1 MORE TIMES ------------------------------------------------------------------------------------------------------------------------------------ 7 USE HD164794 2 REPEAT 7 EVERY 3D MONVBRT +/- 1D FOR 1 MORE TIMES ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3926c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 8 USE HD192281 2 CYCLE 1 /8-8.1 MONBRT REPEAT 8 EVERY 3D +/- 1D FOR 1 MORE TIMES ------------------------------------------------------------------------------------------------------------------------------------ 8.1 USE HD152236 1 REPEAT 8.1 EVERY MONVBRT 3D +/- 1D FOR 1 MORE TIMES ------------------------------------------------------------------------------------------------------------------------------------ 12 HD193237 HSP/ ACQ DATA- 1 10S 1 1 ONBOARD ACQ FOR UV2 FORMAT=ANALOG 12.2 CYCLE 1 / 12.0- 12.2 REPEAT 12.0-12.2 EVERY 5D Comments: SET CVC GAIN = 10000. +/- 2D FOR 3 MORE TIMES AT 15-SEP-91 +/- 2D ------------------------------------------------------------------------------------------------------------------------------------ 12.2 HD193237 HSP/ SINGLE 1.0 F152M SAMPLE-TIME=0.1 1 1800S 1 1 UV2 DATA- FORMAT=WORD ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 3926c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HSP/UV2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ SINGLE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SAMPLE-TIME=0.1 DATA-FORMAT=ANALOG SAMPLE-TIME=0.01 HV-GAIN=G0.5 DATA-FORMAT=ALL DATA-FORMAT=WORD ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/HSP ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 20.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category STELLAR ASTROPHYSICS ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 2; ONBOARD ACQ FOR 3.1; ONBOARD ACQ FOR 3.3; CYCLE 1 /4-7; REPEAT 4 EVERY 3D +/- 1D FOR 1 MORE TIMES; REPEAT 5 EVERY 3D +/- REPEAT 7 EVERY 3D +/- CYCLE 1 /8-8.1; REPEAT 8 EVERY 3D +/- REPEAT 8.1 EVERY 3D +/- 1D FOR 1 MORE TIMES; ONBOARD ACQ FOR 12.2; CYCLE 1 / 12.0-12.2; REPEAT 12.0-12.2 EVERY 5D +/- 2D FOR 3 MORE TIMES; AT 15-SEP-91 +/- 2D; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F152M ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD15570 HD93250 HD152236 ZETA-1-SCO HD164794 9SGR HD192281 HD193237 P-CYG ------------------------------------------------------------------------------------------------------------------------------------