6292( 6) - 11/08/95 09:54 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6292 Version: 6 Check-in Date: ********** 1.Proposal Title: TIME RESOLVED FOS OBSERVATIONS OF THE AP STAR HD 60435 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle COOL STARS GTO/HSP 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: ROBERT C. BLESS WISCONSIN, UNIVERSITY OF ------------------------------------------------------------------------------------ 6. Abstract As part of the SV program of HSP HD 60435 was observed with the HSP as a test of the photometric stability of the HSP. This program was successful in identifying many of the photometric stability problems which had to be dealt with in later HSP observations. However, it also yielded some interesting scientfic results which will followed up. The primary results of the HSP data were the detection of both known and previously unknown pulsations in the star. In addition significant low frequency features are evident in the power spectrum of the star which have not been accounted for as either noise or instrument effects. Further observations of this star will be accomplished with the FOS in RAPID mode for an observation duration of about 6 hours while the target is in the CVZ of the HST. ------------------------------------------------------------------------------------ 6292( 6) - 11/08/95 09:54 - [ 2] Observations Description ------------------------ Real Time Justification ----------------------- No real-time observations are requested for this proposal. The observatons in this proposal require a total integration time of 21,600 seconds during a CVZ visit of the target. The extended nature of the observation is essential for two reasons: a) A single long observation is require to properly measure the multiple frequencies and their spacings found in this star. Shorter observations would confuse adjacent pulsations. b) A CVZ visit is requested to eliminate period aliasing due to gaps in the data normally introduced by the HST orbit. This is important since the aliasing would be introducing power at period spacings similar to those found in the star. Calibration Justification ------------------------- Additional Comments ------------------- The observation should be scheduled for orbits that avoid the South Atlantic Anomaly (SAA). If possible within the constraints of CVZ scheduling, the observations are requested to be scheduled within 2 months of January 15 1996 to allow this observation to coincide with ground based observations planned for early 1996. ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: , ------------------------------------------------------------------------------------ 6292( 6) - 11/08/95 09:54 - [ 3] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 HD60435 STAR, AP, PULSATING RA=07H 30M 57.065S +/- 1", DEC= J2000 V=8.90 VARIABLE -57D 59' 28.860" +/- 1" TYPE=A7V Comments: POSREF=PICKLES 6292( 6) - 11/08/95 09:54 - [ 4] Visit: 01 Visit Requirements: CVZ 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 HD60435 FOS/RD ACQ/PEA 4.3 G270H SCAN-STEP- 1 1S ONBOARD ACQ FOR 11 K Y=1.204, SEARCH -SIZE-X=1, SEARCH-SIZE-Y=3 ------------------------------------------------------------------------------------------------------------------------------------ 11 HD60435 FOS/RD ACQ/PEA 1.0 G270H SCAN-STEP- 1 1S ONBOARD ACQ FOR 12 K X=.602, SCAN- STEP-Y=.602, SEARCH-SIZE- X=6, SEARCH- Comments: SIZE-Y=2 ------------------------------------------------------------------------------------------------------------------------------------ 12 HD60435 FOS/RD ACQ/PEA 0.3 G270H SCAN-STEP- 1 1S ONBOARD ACQ FOR 20 K X=.172, SCAN- STEP-Y=.172, SEARCH-SIZE- X=5, SEARCH- Comments: SIZE-Y=5 ------------------------------------------------------------------------------------------------------------------------------------ 20 HD60435 FOS/RD RAPID 4.3 G270H READ-TIME=30 1 21600S ------------------------------------------------------------------------------------------------------------------------------------ 6292( 6) - 11/08/95 09:54 - [ 5] Summary Form for Proposal 6292 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAK RAPID ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SCAN-STEP-Y=1.204 SEARCH-SIZE-X=1 SEARCH-SIZE-Y=3 SEARCH-SIZE-Y=2 SEARCH-SIZE-Y=5 READ-TIME=30 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GTO/HSP ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category COOL STARS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CVZ ONBOARD ACQ FOR 11 ONBOARD ACQ FOR 12 ONBOARD ACQ FOR 20 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G270H ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD60435 ------------------------------------------------------------------------------------------------------------------------------------