6243( 5) - 10/26/95 14:56 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6243 Version: 5 Check-in Date: ********** 1.Proposal Title: TIME RESOLVED SPECTROSCOPY OF NOVA CYG ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle HOT STARS GTO/HSP 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: ROBERT C. BLESS UNIVERSITY OF WISCONSIN ------------------------------------------------------------------------------------ 6. Abstract The HSP observed Nova Cyg in January and October 1993. A 15-minute period was found in both data sets that may be the rotational period or pulsation of the white dwarf. In addition, several transient phenomena are detected that may be evidence of flickering in the system or to quasdi-periodic oscillations. In this proposal we will obtain time-resolved low-resolution spectroscopy of Nova Cyg 1992 with the FOS. Our data will span the entire 2-hour binary orbital period. We will phase our observations accordingly which will allow us to distinguish between variations related to the irradiated binary and those related to physical conditions close to or on the white dwarf. We will also search for variability in the continuum and UV emission lines. Similar data have already been obtained on the classical nova GQ Mus as part of a GO program. We will collaborate with the GO on this proposal who is also at UW and compare our results on Nova Cyg with those for GQ Mus. ------------------------------------------------------------------------------------ Observations Description ------------------------ Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: , ------------------------------------------------------------------------------------ 6243( 5) - 10/26/95 14:56 - [ 2] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NOVA-CYG STAR, CLASSICAL NOVA, RA=20H 30M 31.674S +/- 0.2S, J2000 INTERACTING BINARY DEC= +52D 37' 50.9" +/- 0.2", PLATE-ID=003I Comments: POSREF=IAUCIRC-5534, TARGET IS VARIABLE 6243( 5) - 10/26/95 14:56 - [ 3] Visit: 01 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 NOVA-CYG FOS/BL ACQ/PEA 4.3 G130H SCAN-STEP- 1 0.1S ONBOARD ACQ FOR 20 K Y=1.23, SEARCH- SIZE-X=1, SEARCH-SIZE-Y=3 ------------------------------------------------------------------------------------------------------------------------------------ 20 NOVA-CYG FOS/BL ACQ/PEA 1.0- G130H SCAN-STEP- 1 0.1S ONBOARD ACQ FOR 30 K PAIR X=0.61, SCAN- STEP-Y=0.61, SEARCH-SIZE- X=6, SEARCH- Comments: SIZE-Y=2 ------------------------------------------------------------------------------------------------------------------------------------ 30 NOVA-CYG FOS/BL ACQ/PEA 0.5- G130H SCAN-STEP- 1 0.1S ONBOARD ACQ FOR 35 K PAIR X=0.29, SCAN- STEP-Y=0.29, SEARCH-SIZE- X=3, SEARCH- Comments: SIZE-Y=3 ------------------------------------------------------------------------------------------------------------------------------------ 35 NOVA-CYG FOS/BL ACCUM 1.0- G160L STEP- 5 2700S PAIR PATT=SINGLE Comments: VARIABLE TARGET EACH OF THE 5 OBSERVATIONS MUST BE OBTAINED OVER 5 CONSECUTIVE ORBITS OBSERVE FOR THE MAXIMUM TIME POSSIBLE IN EACH ORBIT ------------------------------------------------------------------------------------------------------------------------------------ 6243( 5) - 10/26/95 14:56 - [ 4] Summary Form for Proposal 6243 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/BL ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAK ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SCAN-STEP-Y=1.23 SEARCH-SIZE-X=1 SEARCH-SIZE-Y=3 SEARCH-SIZE-Y=2 SEARCH-SIZE-X=3 STEP-PATT=SINGLE ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GTO/HSP ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category HOT STARS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 20 ONBOARD ACQ FOR 30 ONBOARD ACQ FOR 35 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130H G160L ------------------------------------------------------------------------------------------------------------------------------------ Target Names NOVA-CYG ------------------------------------------------------------------------------------------------------------------------------------