Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 3877c Report Date: 09-May-96:18:54 Version: ********** Check-in Date: ********** 1.Proposal Title: CRANE,AUGMENTATION, STELLAR ASTROPHYSICS BINARY PULSAR PSR1913+16 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID STELLAR ASTROPHYSICS AUG/OS 1061 Sub Category AUG/OS ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Philippe Crane EUROPEAN SOUTHERN OBSERVATOR GERMANY, W +49-89-320-06- ASTRONOMER/PHYSICIST ------------------------------------------------------------------------------------ 7. Abstract The binary pulsar PSR1913+16, supposedly a prime laboratory for gravitational radiation, may have an optically visible companion, or may be in a visible nebula. WFPC and FOC images will be used to improve the optical astrometry and to study the extension seen in the original images. Since this is such a uniquely important object for our understanding of gravitational radiation, it is crucial to make these definitive observations to clarify the existing uncertainty. If there is an optically luminous companion, or a nebula surrounding the pulsar, this will require modifications to the interpretation of the pulsar timing data. ------------------------------------------------------------------------------------ 8. Scientific Key Words: PULSARS, ASTROMETRY, GRAVITATIONAL RADIATION ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 2.00 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 3877c PI: Philippe Crane Proposal Title: CRANE,AUGMENTATION, STELLAR ASTROPHYSICS BINARY PULSAR PSR1913+16 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Philippe Crane EUROPEAN SOUTHERN OBSERVATORY GERMANY, WE P. T. Boeshaar DREW UNIVERSITY USA J. A. Tyson BELL LABORITORIES USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. Cycle 2: Deep PC image at F702W to obtain improved signal to noise in the red ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. Clearly the resolution of ST which enabled the faint extension to be found is the reason for this request to obtain better S:N on this crucial source. Also, HST resolution makes it much easier to do the precise astrometry needed for this faint source. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. We have developed the reduction and analysis necessary for these data from our Cycle 0 observations. ------------------------------------------------------------------------------------ 9. Description of previous HST work. 1055 Imaging and Spectroscopy of M81 ( not related) 1056 Imaging and Spectroscopy of Spiral Galaxies(not related) 1057 Imaging and Spectroscopy of Elliptical Galaxies(not related) 1058 Optical Emission from Radio Lobes( not related) 1059 Gravitational Lenses (not related) 1061 Binary Pulsar PSR1913+16 ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). This is a GTO/AUG proposal, and thus the institutional arrangements remain the same for this as for the GTO science. ------------------------------------------------------------------------------------ 11. Address Information Name: PHILIPPE CRANE Category: PI Institution: EUROPEAN SOUTHERN OBSERVATORY Address: KARL-SCWARZSCHILD-STR. 2 City: D-8046 GARCHING BEI MUNCHEN State: Zip Code: Country: GERMANY, WEST Telephone: +49-89-320-06-230 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 3877c [ 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 PSR1913+16 A,173 RA = 19H 13M 12.47S+/-.1S, 1950 1 V = 21.2 +/- 0.4 DEC = 16D 01' 08.0"+/-1.0" Comments: R>20.9 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3877c [ 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 PSR1913+16 PC IMAGE PC6-FIX F702W 6898 CR-SPLIT=DEF 2 35M 100 1 CYCLE 2 PRE-FLASH=YES PCS MODE F GROUP 1-2 WITHIN 7D SAME ORIENT FOR 2 AS 1 Comments: SMALL POS TARG OFFSET TO POS TARG +1,-1 OVERCOME ANY POSSIBLE CHIP DEFECTS. ------------------------------------------------------------------------------------------------------------------------------------ 2 PSR1913+16 PC IMAGE PC6-FIX F702W 6898 CR-SPLIT=DEF 1 35M 100 1 CYCLE 2 PRE-FLASH=YES PCS MODE F POS TARG -1,+1 Comments: SMALL POS TARG OFFSET TO OVERCOME ANY POSSIBLE CHIP DEFECTS. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 3877c [ 5] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations PC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=DEF PRE-FLASH=YES ------------------------------------------------------------------------------------------------------------------------------------ Proposal for AUG/OS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 2.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category STELLAR ASTROPHYSICS ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category AUG/OS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 2; PCS MODE F; GROUP 1-2 WITHIN 7D; SAME ORIENT FOR 2 AS 1; POS TARG +1,-1; POS TARG -1,+1; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F702W ------------------------------------------------------------------------------------------------------------------------------------ Target Names PSR1913+16 ------------------------------------------------------------------------------------------------------------------------------------