! File: 4791C.PROP ! Database: PEPDB ! Date: 23-FEB-1994:03:38:24 coverpage: title_1: BINARIES IN GLOBULAR CLUSTERS (FOS 37) -- SPECTROSCOPY sci_cat: STELLAR ASTROPHYSICS proposal_for: GTO/FOS cont_id: 1053 pi_title: PROF. pi_fname: BRUCE pi_lname: MARGON pi_inst: WASHINGTON, UNIVERSITY OF pi_country: USA pi_phone: 206-543-0089 keywords_1: X-RAY STAR, NOVA, GLOBULAR CLUSTER, NEUTRON STAR num_pri: 2 fos: X pi_position: CHAIR AND PROFESSOR ! end of coverpage abstract: line_1: Imaging and spectroscopy will be used to probe the nature of the luminous, line_2: central X-ray burst sources; to attempt optical identifications of the lower line_3: luminosity X-ray sources removed from the cores (and thus to verify the line_4: conjecture that they are related to CVs); and to attempt to recover the two line_5: historical novae seen in clusters (possibly resulting in expansion parallaxes line_6: for the clusters). ! ! end of abstract general_form_proposers: lname: BEAVER fname: EDWARD inst: UC, SAN DIEGO country: USA ! lname: BURBIDGE fname: E. MARGARET inst: UC, SAN DIEGO country: USA ! lname: MARGON fname: BRUCE inst: WASHINGTON, UNIVERSITY OF country: USA ! lname: ANGEL fname: J. ROGER mi: P. inst: ARIZONA, UNIVERSITY OF country: USA ! lname: BARTKO fname: FRANK inst: MARTIN MARIETTA CORPORATION country: USA ! lname: DAVIDSEN fname: ARTHUR mi: F. inst: JOHNS HOPKINS UNIVERSITY country: USA ! lname: HARMS fname: RICHARD mi: J. inst: APPLIED RESEARCH CORPORATION country: USA ! lname: BOHLIN fname: RALPH inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! lname: FORD fname: HOLLAND mi: C. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: EARLY ACQs to find interesting candidates were conducted in a previous line_2: proposal. If no interesting line_3: candidates are found, no followup spectra will be taken. If line_4: an interesting looking candidate is found, then spectra will line_5: be obtained, with the specific gratings to be used determined line_6: by the quality of the candidate. line_8: This proposal is the follow-on spectroscopy of an interesting line_9: candidate, to be observed with the G650L grating. An offset line_10: star will be acquired, and then a blind pointing, based on line_11: the PC image will be performed to the candidate. ! question: 5 section: 1 line_1: ! question: 7 section: 1 line_1: Data reduction will be performed at the ST ScI, and the analysis will be line_2: performed using FOS IDT computer facilities. ! question: 8 section: 1 line_1: Candidates for spectroscopy will all appear in WF/PC images. If identical line_2: guide stars are available for both observations, FOS acquisition could be line_3: significantly faster and more reliable. If not, we will offset from arbitrary line_4: anonymous bright stars in field. ! question: 10 section: 1 line_1: Data analysis, research assistant support, and funding will be provided under line_2: NASA's FOS GTO contract(s). ! question: 12 section: 1 line_1: Completion of the scientific goals of this program requires the intercomparison line_2: of data on the majority of separate objects. Thus, these goals will not be line_3: fulfilled until at least 80% of the targets have been observed. line_5: The total estimated observing time on the cover sheet assumes that 65% of the line_6: fields with image will yield candidates requiring spectroscopy; thus, actual line_7: time will probably be less. If candidates are found, spectra should be line_8: scheduled within 75+/-15 days of the delivery of the WF/PC data to the PI. ! question: 13 section: 1 line_1: Multicolor WF/PC images will be used to search for the optical counterparts of line_2: both central and noncentral X-ray sources. Objects identified through unusual line_3: colors will be observed with the FOS. The recovery of two historical novae in line_4: globular clusters, and spectra to yield abundances and possibly expansion line_5: parallaxes, is also proposed. ! !end of general form text general_form_address: lname: MARGON fname: BRUCE category: PI inst: UNIVERSITY OF WASHINGTON addr_1: ASTRONOMY DEPARTMENT, FM-20 city: SEATTLE state: WA zip: 98195 country: USA phone: 206 543-0089 telex: 4740096 ! ! end of general_form_address records fixed_targets: targnum: 17 name_1: NGC6712-OFFSET descr_1: A,139 pos_1: RA = 18H 53M 04.97S +/- 0.01S, pos_2: DEC = -08D 42' 18.2" +/- 0.3" equinox: 2000 comment_1: E(B-V) FOR THE CLUSTER IS 0.48. comment_2: SPECTRAL TYPE IS G (IF IN comment_3: CLUSTER) OR K (IF FOREGROUND). fluxnum_1: 1 fluxval_1: V = 16.00 +/- 0.05 fluxnum_2: 2 fluxval_2: B = 17.00 +/- 0.05 fluxnum_3: 3 fluxval_3: U = 17.54 +/- 0.05 ! targnum: 28 name_1: NGC6712-STAR descr_1: A,165 pos_1: RA-OFF = -0.13S +/- 0.01S, pos_2: DEC-OFF = -2.31" +/- 0.1", pos_3: FROM 17 equinox: 2000 acqpr_1: COMP fluxnum_1: 1 fluxval_1: B = 20.9 +/- 0.5 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 2.000 targname: NGC6712-OFFSET config: FOS/RD opmode: ACQ/BINARY aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 22.0S fluxnum_1: 1 priority: 1 req_1: ONBOARD ACQ FOR 3; req_2: CYCLE 2/2-4; comment_1: ACQUIRE OFFSET STAR. ! linenum: 3.000 targname: NGC6712-OFFSET config: FOS/RD opmode: ACQ/PEAK aperture: 0.5 sp_element: MIRROR num_exp: 1 time_per_exp: 10.0S fluxnum_1: 1 priority: 1 param_1: SEARCH-SIZE=3, param_2: SCAN-STEP=0.35 req_1: ONBOARD ACQ FOR 4; comment_1: ACQUIRE OFFSET STAR. comment_2: SINCE THE 0.5" APERTURE IS comment_3: USED FOR THE SCIENCE OBS, comment_4: WE NEED TO PEAK UP TO REFINE THE comment_5: CENTERING. ! linenum: 4.000 targname: NGC6712-STAR config: FOS/RD opmode: ACCUM aperture: 0.5 sp_element: G650L num_exp: 1 time_per_exp: 4500S fluxnum_1: 1 priority: 1 comment_1: BLIND OFFSET TO SCIENCE comment_2: TARGET. ! ! end of exposure logsheet ! No scan data records found