! File: 3256C.PROP ! Database: PEPDB ! Date: 19-FEB-1994:00:10:06 coverpage: title_1: X-RAY BINARIES - CYCLE 2 sci_cat: STELLAR ASTROPHYSICS proposal_for: GTO/HSP cont_id: 1097 pi_fname: ROBERT pi_mi: C. pi_lname: BLESS pi_inst: WISCONSIN, UNIVERSITY OF pi_country: USA pi_phone: (608)262-1715 keywords_1: X-RAY BINARIES: NEUTRON STARS: BLACK HOLES hours_pri: 20.00 num_pri: 10 realtime: Y ! end of coverpage abstract: line_1: The extreme conditions existing in the near vicinity of neutron stars which are line_2: the secondaries in close binaries provide a laboratory in which we may line_3: observationally confirm or refine many of our basic theories of astrophysics. line_4: This program will monitor the photometric and polarimetric light curves of line_5: X-ray binaries at several different phases of the binary orbit in several line_6: different wavelength bands in the UV. The results will be related to the line_7: structure of, and physical conditions existing in, the gas streams (and line_8: possibly, the accretion disk) in these systems. line_9: Revision History: Received on RPS 9/1/89; Added to SCCS 9/5/89 line_10: RPSS V7.2 remote & local; Small syntax errs corrected - SALM 9/12/89 line_11: Gyros and other changes - Dolan 9/29/89; Move GX339-4 to cycle2, reduce line_12: repeats to 4 every 0.93D, coarse track - SALM 2/15/90; Condense POL line_13: observations - SALM 2/22/90; Move GX339-4 & A0538-66 to cycle2 - SALM line_14: 3/20/90; Edited by cycle per USB order - SALM 5/10/90; Change PEAKUP line_15: to ACQ - SALM 6/8/90; Changed some "^"s and "#"s - SALM 6/21,25/90; Fixed line_16: logic errors--BJW 6/26/90; ACQ/SEQ errors - SALM 6/29/90; added data format line_17: analog for acqs.--BJW 7/5/90; removed GYROHOLD from acqs.--BJW 7/11/90; line_18: Revised earlier changes made to SEQ--BJW 7/31/90; Added repeats, exp. time line_19: to POL observations--BJW 8/20/90; Changes made at request of Joe Dolan-- line_20: BJW 8/27/90, 9/19/90; cycle0 changes--BJW 1/10/91; Changed cycle 1 to ! ! end of abstract general_form_proposers: lname: VAN CITTERS fname: G. mi: W. inst: NATIONAL SCIENCE FOUNDATION country: USA ! 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 ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: The photometric and polarimetric light curves of each target will be built up line_2: by measuring the magnitude and linear polarization of the system in several line_3: different wavelength bands at several different phases in one orbit. line_4: Investigation of temporal variations in any gas stream will require line_5: observations over several different orbits. Some of these systems undergo line_6: substantial luminosity changes in the optical or X-ray region of the spectrum; line_7: the observations will be repeated for each different luminosity state the line_8: system assumes. line_9: Cycle 0 (SV/GTO) observations: line_10: Exposure lines 37 to 41.84 on 1 month centers line_11: Cycle 1 (SV/GTO) observations: line_12: Exposure lines 42.9-47.75 and 55-60 on 1 month centers ! question: 4 section: 1 line_1: UV radiation is believed to originate closer to the accretion disk around the line_2: secondary in X-ray binaries than does longer wavelength optical radiation. line_3: Hence, observations in the UV, accessible only to ST, will probe a different line_4: region of the gas streams between the stars than can be done in the optical. line_5: It is expected that the results will be more directly relatable to the line_6: conditions existing near the neutron star. ! question: 5 section: 1 line_1: The observations must be correlated with the period of the binary to obtain line_2: the desired light curves. ! question: 7 section: 1 line_1: Given scattering from gas streams, the polarimetric (q, u) plot can determine line_2: the location of the stream relative to the line of centers and the orbital line_3: plane and the eccentricity of the scattering location's orbit about the primary line_4: (Dolan and Tapie, Astron. Ap., 139, 249, 1984; Dolan, Astron. Ap., 138, 1, line_5: 1984; and references cited therein). The phases at which photometric and line_6: polarimetric variability occur provide the longitudinal location of the gas line_7: streams; the magnitude of the varitions cn be related to the total amount of line_8: material in the stream. The ionization state of the stream can be determined line_9: from the dependence of the polarimetric variability on wavelength: Rayleigh line_10: scattering varies as the inverse 4th power of the wavelength and indicates line_11: neutral atoms as the scattering agents; Thomson scattering is independent of line_12: wavelength and indicate free electrons (i.e., ionized atoms) as the scattering line_13: agents. Variations in phase of features on the photometric and polarimetric line_14: light curves from orbit to orbit will indicate temporal changes in position of line_15: the scattering region in the gas streams. ! question: 12 section: 1 line_1: The X-ray binaries program is directly related to the first scientific line_2: objective listed in the HSP CEI specifications, "determination of the line_3: properties of ... X-ray binaries, gas streams and accretion disks in compact line_4: binary systems", and to the fifth scientific objective, "determination of the line_5: wavelength and time dependence of polarization in compact binaries". ! question: 13 section: 1 line_1: Photometric and polarimetric light curves of X-ray binaries will be established line_2: at several different UV wavelengths. Changes in these light curves will be line_3: monitored as a function of the luminosity state of the system. The results line_4: will be related to the structure of, and physical conditions in, the gas line_5: streams and accretion disk in these close binaries. ! !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. addr_2: 1150 UNIVERSITY AVE. city: MADISON state: WI zip: 53706 country: USA phone: 608-262-1715 ! 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: X-PER name_2: 4U0352+30 descr_1: X-RAY BINARY pos_1: RA = 03H 55M 22.997S +/- 0.1S, pos_2: DEC = +31D 02' 44.975" +/- 1" equinox: 2000 comment_1: SAO 56815 comment_2: POSREF = SAO CATALOG, WITH PM fluxnum_1: 1 fluxval_1: V=6 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 0.500 sequence_1: DEFINE sequence_2: ACQ2 targname: # config: HSP/UV2 opmode: ACQ num_exp: 1 time_per_exp: 24S s_to_n: 6 fluxnum_1: 1 priority: # param_1: DATA-FORMAT=ANALOG, ! linenum: 0.600 sequence_1: DEFINE sequence_2: ACQP targname: # config: HSP/POL opmode: ACQ num_exp: 1 time_per_exp: 24S s_to_n: 6 fluxnum_1: 1 priority: # param_1: DATA-FORMAT=ANALOG, ! linenum: 0.700 sequence_1: DEFINE sequence_2: CTR2 targname: # config: HSP/UV2 opmode: ACQ num_exp: 1 time_per_exp: 1M s_to_n: # fluxnum_1: 1 priority: # param_1: DATA-FORMAT=ANALOG, ! linenum: 0.900 sequence_1: DEFINE sequence_2: CTRP targname: # config: HSP/POL opmode: ACQ num_exp: 1 time_per_exp: 1M s_to_n: # fluxnum_1: 1 priority: # param_1: DATA-FORMAT=ANALOG, ! linenum: 0.950 sequence_1: DEFINE sequence_2: CTR1 targname: # config: HSP/UV1 opmode: ACQ num_exp: 1 time_per_exp: 1M s_to_n: # fluxnum_1: 1 priority: # param_1: DATA-FORMAT=ANALOG, ! linenum: 1.000 sequence_1: DEFINE sequence_2: FIRST targname: # config: HSP/UV2 opmode: SINGLE aperture: 1.0 sp_element: F145M num_exp: 1 time_per_exp: 20S s_to_n: 100 fluxnum_1: 1 priority: # param_1: SAMPLE-TIME=0.0000108, ! linenum: 2.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: ^ sp_element: F184W num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: # param_1: ^ ! linenum: 3.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: ^ sp_element: F284M num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: # param_1: ^ ! linenum: 4.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: ^ sp_element: F248M num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: # param_1: ^ ! linenum: 5.000 sequence_1: DEFINE sequence_2: FIRST1 targname: # config: HSP/UV1 opmode: SINGLE aperture: 1.0 sp_element: F220W num_exp: 1 time_per_exp: 20S s_to_n: 100 fluxnum_1: 1 priority: # param_1: SAMPLE-TIME=0.0000108, ! linenum: 6.000 sequence_1: DEFINE sequence_2: POL targname: # config: HSP/POL opmode: SINGLE aperture: POL0 sp_element: # num_exp: ^ time_per_exp: 30S s_to_n: ^ fluxnum_1: ^ priority: # param_1: SAMPLE-TIME=0.1, req_1: SEQ 6-9 NO GAP; ! linenum: 7.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: POL90 sp_element: # num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: # param_1: ^ ! linenum: 8.000 sequence_1: DEFINE sequence_2: POL targname: # config: HSP/POL opmode: SINGLE aperture: POL45 sp_element: # num_exp: 1 time_per_exp: 30S s_to_n: 100 fluxnum_1: 1 priority: # param_1: SAMPLE-TIME=0.1, ! linenum: 9.000 sequence_1: ^ targname: # config: ^ opmode: ^ aperture: POL135 sp_element: # num_exp: ^ time_per_exp: ^ s_to_n: ^ fluxnum_1: ^ priority: # param_1: ^ ! linenum: 23.000 sequence_1: DEFINE sequence_2: REP targname: # config: HSP/UV2 opmode: SINGLE aperture: 1.0 sp_element: F248M num_exp: 1 time_per_exp: 20S s_to_n: 100 fluxnum_1: 1 priority: # param_1: SAMPLE-TIME=0.0000108, ! linenum: 54.900 sequence_1: USE sequence_2: ACQ2 targname: X-PER priority: 2 req_1: ONBOARD ACQ FOR 55; req_2: CYCLE 2 / 54.9-60.4; ! linenum: 55.000 sequence_1: USE sequence_2: FIRST targname: X-PER priority: 2 req_1: SEQ 54.9-59.025 NO GAP; ! linenum: 55.100 sequence_1: USE CTR1 targname: ^ s_to_n: 15 s_to_n_time: 0.3S priority: 2 req_1: ONBOARD ACQ FOR 55.5; ! linenum: 55.500 sequence_1: USE sequence_2: FIRST1 targname: ^ priority: 2 comment_1: GYROHOLD. ! linenum: 55.700 sequence_1: USE CTRP targname: X-PER s_to_n: 15 s_to_n_time: 0.1S priority: 2 req_1: ONBOARD ACQ FOR 56-59.025; req_2: GUID TOL 0.020" / 55.7-59.025; ! linenum: 56.000 sequence_1: USE sequence_2: POL targname: ^ sp_element: F216M priority: ^ comment_1: GYROHOLD. ! linenum: 56.500 sequence_1: USE sequence_2: POL targname: ^ sp_element: F216M priority: ^ comment_1: GYROHOLD. ! linenum: 57.000 sequence_1: ^ targname: ^ sp_element: F237M priority: ^ comment_1: GYROHOLD. ! linenum: 57.500 sequence_1: ^ targname: ^ sp_element: F237M priority: ^ comment_1: GYROHOLD. ! linenum: 58.000 sequence_1: ^ targname: ^ sp_element: F327M priority: ^ comment_1: GYROHOLD. ! linenum: 58.500 sequence_1: ^ targname: ^ sp_element: F327M priority: ^ comment_1: GYROHOLD. ! linenum: 59.000 sequence_1: USE sequence_2: POL targname: X-PER sp_element: F277M priority: 2 comment_1: GYROHOLD. ! linenum: 59.025 sequence_1: USE sequence_2: POL targname: X-PER sp_element: F277M priority: 2 comment_1: GYROHOLD. ! linenum: 59.050 sequence_1: USE ACQP targname: ^ priority: 2 req_1: ONBOARD ACQ FOR 59.1; req_2: AFTER 59.025 BY 90M +/- 15M; req_3: GUID TOL 0.020" / 59.05-59.1; ! linenum: 59.100 sequence_1: USE sequence_2: POL targname: X-PER sp_element: F277M priority: 2 req_1: SEQ 59.05-60.000 NO GAP; ! linenum: 59.500 sequence_1: USE CTR2 targname: ^ s_to_n: 15 s_to_n_time: 0.1S priority: 2 req_1: ONBOARD ACQ FOR 60.000; ! linenum: 60.000 sequence_1: USE sequence_2: REP targname: ^ priority: ^ comment_1: GYROHOLD. ! linenum: 60.050 sequence_1: USE ACQP targname: X-PER priority: 2 req_1: ONBOARD ACQ FOR 60.055; req_2: REPEAT 60.05-60.065 EVERY 90M +/- 15M req_3: FOR 13 MORE TIMES; req_4: GUID TOL 0.020" / 60.05-60.060; ! linenum: 60.055 sequence_1: USE sequence_2: POL targname: X-PER sp_element: F277M priority: 2 req_1: SEQ 60.050-60.065 NO GAP; ! linenum: 60.060 sequence_1: USE CTR2 targname: ^ s_to_n: 15 s_to_n_time: 0.1S priority: 2 req_1: ONBOARD ACQ FOR 60.065; ! linenum: 60.065 sequence_1: USE sequence_2: REP targname: ^ priority: ^ comment_1: GYROHOLD. ! linenum: 60.100 sequence_1: USE ACQP targname: X-PER priority: 2 req_1: ONBOARD ACQ FOR 60.3; req_2: REPEAT 60.1-60.4 EVERY 58D +/- 1D req_3: FOR 13 MORE TIMES; req_4: GUID TOL 0.020" / 60.1-60.3; req_5: SEQ 60.1-60.4 NO GAP; comment_1: THIS SET OF EXPOSURES SHOULD comment_2: START 58 DAYS +/- 1 DAY comment_3: AFTER 60.065 ! linenum: 60.300 sequence_1: USE sequence_2: POL targname: ^ sp_element: F277M priority: ^ ! linenum: 60.350 sequence_1: USE CTR2 targname: ^ s_to_n: 15 s_to_n_time: 0.1S priority: 2 req_1: ONBOARD ACQ FOR 60.4; ! linenum: 60.400 sequence_1: USE sequence_2: REP targname: X-PER priority: 2 comment_1: GYROHOLD. ! ! end of exposure logsheet ! No scan data records found