! File: 1098C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:01:36:59 coverpage: title_1: REMNANT STARS IN SUPERNOVA REMNANTS sci_cat: STELLAR ASTROPHYSICS proposal_for: GTO/HSP pi_fname: ROBERT pi_mi: C. pi_lname: BLESS pi_inst: WISCONSIN, UNIVERSITY OF pi_country: USA pi_phone: (608)262-1715 keywords_1: SUPERNOVA REMNANTS; NEUTRON STARS hours_pri: 20.00 num_pri: 10 ! end of coverpage abstract: line_1: In this proposal we will search for a remnant star line_2: associated with SN1987A. Once detected, we will line_3: study the photometric variability in an attempt to line_4: place important constraints on the mechanisms by line_5: which neutron stars originate. line_6: REVISION HISTORY: Created 11/18/91; ! ! end of abstract general_form_proposers: lname: BLESS fname: ROBERT mi: C. inst: WISCONSIN, UNIVERSITY OF country: USA ! lname: DOLAN fname: JOSEPH mi: F. inst: NASA, GODDARD SPACE FLIGHT CENTER country: USA ! lname: ELLIOT fname: JAMES mi: L. inst: MASSACHUSETTS INSTITUTE OF TECHNOLOGY country: USA ! lname: ROBINSON fname: EDWARD mi: L. inst: TEXAS, UNIVERSITY OF country: USA ! lname: WHITE fname: RICHARD mi: L. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! lname: VAN CITTERS fname: G. mi: W. inst: NATIONAL SCIENCE FOUNDATION country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: A search for the remnant star associated with SN1987A will line_2: be conducted. We will use the 6.0" finding aperture on the line_3: POL tube. An observation will be made every 6 months until line_4: the pulsar is detected. Each observation will be searched line_5: for pulsations using FFT methods. ! question: 4 section: 1 line_1: Remnant stars are known from presently available upper line_2: limits on most SNR central stars to be fainter than V = 20; line_3: HST is required for this proposal for the following reasons: line_4: (a) Scintillation does not contaminate the data and hence line_5: pulses in the remnant star will be easier to detect. line_6: (b) Smaller apertures can be used with HST minimizing line_7: the contamination from the background. line_8: (c) A long passband (1600-7000 A) can be used which will line_9: maximize the number of photons detected. ! question: 7 section: 1 line_1: The HSP wide bandwidth photometric observations of SN1987A line_2: will be analyzed by power spectrum analysis methods to line_3: determine if any pulsation exists (as it does in the Crab line_4: Nebula and 1E2259+586). Photometric observations will also line_5: be analyzed for longer periodicities which may be present line_6: in the light curve. The results will be applied to line_7: determining the location, geometry, and motion of the line_8: emitting regions. ! !end of general form text general_form_address: lname: BLESS fname: ROBERT mi: C. category: PI inst: UNIVERSITY OF WISCONSIN addr_1: SPACE ASTRONOMY LAB. city: MADISON state: WI zip: 53706 country: USA ! lname: DOLAN fname: JOSEPH mi: F. category: CON inst: NASA, GODDARD SPACE FLIGHT CENTER addr_1: CODE 681 city: GREENBELT state: MD zip: 20771 country: USA phone: (301)286-5920 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: GSC9162.01072 descr_1: OFFSET TARGET FOR SN1987A pos_1: RA = 05H 35M 13.266S +/- 0.037S, pos_2: DEC = -69D 14' 35.315" +/- 0.2" equinox: 2000 comment_1: POSREF = TAYLOR. comment_2: POSREF FROM WEST, ET AL. comment_3: A & A 177.L1 (1987). fluxnum_1: 1 fluxval_1: V=12.52 ! targnum: 2 name_1: SN1987A descr_1: SUPERNOVA IN LMC pos_1: RA-OFF = 14.741S +/- 0.037S, pos_2: DEC-OFF = -96.318" +/- 0.2", pos_3: FROM 1 equinox: 2000 comment_1: POSREF = JDOLAN, comment_2: POSREF FROM GIRARD,VAN ALTENA comment_3: AND LOPEZ, ASTRON. J.,V95,58,1988. comment_4: RA = 05H 35M 28.007S +/- 0.005S. comment_5: DEC = -69D 16' 11.633" +/- 0.03". fluxnum_1: 1 fluxval_1: V=20 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 9.000 sequence_1: DEFINE FFT targname: # config: HSP/POL opmode: SINGLE aperture: 6.0 sp_element: F160LP num_exp: 1 time_per_exp: 40M priority: # param_1: SAMPLE-TIME=0.0001, param_2: DATA-FORMAT=BYTE, param_3: PRECISION=HIGH, req_1: GUID TOL .021" /9.000-55.000; req_2: RT ANALYSIS comment_1: EXPOSURE TIME=40M OR MAXIMUM TIME comment_2: POSSIBLE IN ONE ORBIT. comment_3: TDRSS DOWNLINK REQUIRED. ! linenum: 48.000 targname: GSC9162.01072 config: HSP/POL opmode: ACQ num_exp: 1 time_per_exp: 40S fluxnum_1: 1 priority: 1 req_1: CYCLE 0 / 48-49; req_2: ONBOARD ACQ FOR 49; comment_1: NOTE: SAMPLE-TIME=0.1S. ! linenum: 49.000 sequence_1: USE sequence_2: FFT targname: SN1987A priority: ^ ! linenum: 50.000 targname: GSC9162.01072 config: HSP/POL opmode: ACQ num_exp: 1 time_per_exp: 40S fluxnum_1: 1 priority: 1 req_1: ONBOARD ACQ FOR 51; req_2: CYCLE 1 / 50-53.000; comment_1: NOTE: SAMPLE-TIME=0.1S. ! linenum: 51.000 sequence_1: USE FFT targname: SN1987A priority: ^ req_1: AFTER 49 BY 180D +/- 30D; ! linenum: 52.000 targname: GSC9162.01072 config: HSP/POL opmode: ACQ num_exp: 1 time_per_exp: 40S fluxnum_1: 1 priority: 1 req_1: ONBOARD ACQ FOR 53.000; comment_1: NOTE: SAMPLE-TIME=0.1S. ! linenum: 53.000 sequence_1: USE FFT targname: SN1987A priority: ^ req_1: AFTER 49 BY 360D +/- 30D; ! linenum: 54.000 targname: GSC9162.01072 config: HSP/POL opmode: ACQ num_exp: 1 time_per_exp: 40S fluxnum_1: 1 priority: 1 req_1: ONBOARD ACQ FOR 55.000; req_2: CYCLE 2 / 54-55; comment_1: NOTE: SAMPLE-TIME=0.1S. ! linenum: 55.000 sequence_1: USE FFT targname: SN1987A priority: ^ req_1: AFTER 49 BY 540D +/- 30D; ! ! end of exposure logsheet ! No scan data records found