Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4501c Report Date: 09-May-96:19:39 Version: ********** Check-in Date: ********** 1.Proposal Title: DETERMINATION OF ABSOLUTE ORBITS AND MASSES OF HIPPARCOS PRE-MAIN SEQUENCE BINARY STARS ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID COOL STARS GO 3 Long Term yrs 3688 Sub Category EARLY EVOLUTION ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Pierluigi L. Bernacca CENTER OF STUDIES AND ACTIVI ITALY ------------------------------------------------------------------------------------ 7. Abstract We are proposing to perform astrometric measurements with the HST-FGS of 11 pre-main sequence stars having trigonometric parallaxes measured by the ESA HIPPARCOS satellite. The objects are new binaries already detected by HIPPARCOS or could be detected as such during actuation of the accepted Cycle 2 proposal No.3688. Aim of the proposed observations is the first direct derivations of a sample of absolute orbits and masses of binaries approaching the main sequence which are truly model independent. This is basic data for understanding the physics of star formation out of protostellar clouds. The long-term status of the proposal calls for about 7 hours of spacecraft time per Cycle. Detailed time allocation and observations scheduling within each Cycle for each star in our list shall be made after the data reduction following implementation of proposal No.3688. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 5.00 par: 0 10. Num targs pri: 11 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FGS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4501c PI: Pierluigi L. Bernacca Proposal Title: DETERMINATION OF ABSOLUTE ORBITS AND MASSES OF HIPPARCOS PRE-MAIN SEQUENCE BINARY STARS ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Guido A Barbaro 6470 ITALY X Ulrich Bastian 5515 GERMANY X Beatrice Bucciarelli 3470 USA X Pi Pierluigi L. Bernacca 6470 ITALY X Mario G. Lattanzi 3470 USA X Renato Pannunzio 6438 ITALY X Massimo Badiali 6406 ITALY X Daniela Cardini 6406 ITALY X Alessandro Emanuele 6406 ITALY X ------------------------------------------------------------------------------------ 11. Address Information Name: PIERLUIGI L. BERNACCA Category: PI Institution: CENTER OF STUDIES AND ACTIVITIES Address: OSSERVATORIO ASTROFISICO City: ASIAGO-VI State: Zip Code: Country: ITALY Telephone: 39-424-462665 Telex (or e-mail): 430111 SETOUR,I ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 4501c [ 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 20387 RY TAU A,116 RA= 04H 21M 57.400S +/- 2000 1 V= 11.00 +/- 0.5 0.07S, 2 B-V= 0.68 +/- 0.5 DEC= +28D 26' 35.84" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ 2 20160 A,156 RA= 04H 19M 15.829S +/- 2000 1 V= 10.9 +/- 0.5 HD281934 BP 0.07S, 2 B-V= 1.3 +/- 0.5 TAU DEC= +29D 6' 27.25" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ 3 20390 HD A,123 RA= 04H 21M 59.399S +/- 2000 1 V= 10.37 +/- 0.5 0.07S, 2 B-V= 1.24 +/- 0.5 DEC= +19D 32' 6.560" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ 4 35488 CD- A,127 RA= 07H 19M 28.225S +/- 2000 1 V= 10.58 +/- 0.29 44D3318 0.07S, 2 B-V= 0.15 +/- 0.42 DEC= -44D 35' 11.46" +/- 1" Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) J 2000.00 -0.0010 +/- 0.0000 0.0060 +/- 0.0000 0.0000 +/- 0.0000 ------------------------------------------------------------------------------------------------------------------------------------ 5 53444 A,116 RA= 10H 55M 58.951S +/- 2000 1 V= 9.46 +/- 0.24 HD94878 GG- 0.07S, 2 B-V= -0.16 +/- 0.33 CAR DEC= -60D 23' 33.62" +/- 1" Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) J 2000.00 -0.0005 +/- 0.0000 0.0000 +/- 0.0000 0.0000 +/- 0.0000 ------------------------------------------------------------------------------------------------------------------------------------ 6 78094 CD- A,156 RA= 15H 56M 42.289S +/- 2000 1 V= 10.22 +/- 0.46 37D10602 RU- 0.07S, 2 B-V= 0.7 +/- 0.5 LUP DEC= -37D 49' 16.09" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ 7 23873 RW AUR A,116 RA= 5H 7M 49.504S +/- 0.07S, 2000 1 V= 10.81 +/- 0.5 DEC= 30D 24' 4.790" +/- 1" 2 B-V= 0.71 +/- 0.5 ------------------------------------------------------------------------------------------------------------------------------------ 8 82747 CD- A,156 RA= 16H 54M 44.823S +/- 2000 1 V= 9.8 +/- 0.5 36D11056 AK- 0.07S, 2 B-V= 0.4 +/- 0.5 SCO DEC= -36D 53' 19.34" +/- 1" Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) J 2000.00 -0.0017 +/- 0.0000 -0.0450 +/- 0.0000 0.0000 +/- 0.0000 ------------------------------------------------------------------------------------------------------------------------------------ 9 93449 R CRA A,116 RA= 19H 1M 53.694S +/- 2000 1 V= 10.74 +/- 0.5 0.07S, 2 B-V= 0.56 +/- 0.5 DEC= -36D 57' 8.020" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ 10 113269 DI- A,156 RA= 22H 56M 11.50S +/- 2000 1 V= 11.54 +/- 0.11 CEP 0.07S, 2 B-V= 0.81 +/- 0.19 DEC= +58D 40' 1.4" +/- 1" ------------------------------------------------------------------------------------------------------------------------------------ 11 115000 A RA= 0H 37M 51.87S +/- 0.07S, B1950 1 V= 9.55 +/- 0.05 BD+84D12 UP- DEC= +84D 57' 47.5" +/- 1" 2 B-V= 0.5 +/- 0.07 69 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4501c [ 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 20387 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ 2 20160 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ 3 20390 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ 4 35488 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ 5 53444 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ 6 78094 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ 7 23873 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4501c [ 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 82747 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ 9 93449 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ 10 113269 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ 11 115000 FGS TRANS 3 F550W SCANS=8 1 8.33M CYCLE 3 STEP-SIZE=0.6 Comments: IF ST SCI MUST MOVE THE TARGET MORE THAN 5 ARCSECS FROM THE DEFAULT OF POSTARG =(0,0), PLEASE NOTIFY CONTACT ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4501c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FGS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes TRANS ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SCANS=8 STEP-SIZE=0.6 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GO ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 5.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category COOL STARS ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category EARLY EVOLUTION ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 3 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F550W ------------------------------------------------------------------------------------------------------------------------------------ Target Names 20387 RY TAU 20160 HD281934 BP TAU 20390 HD 35488 CD-44D3318 53444 HD94878 GG-CAR 78094 CD-37D10602 RU-LUP 23873 RW AUR 82747 CD-36D11056 AK-SCO 93449 R CRA 113269 DI-CEP 115000 BD+84D12 UP-69 ------------------------------------------------------------------------------------------------------------------------------------