! File: 4827C.PROP ! Database: PEPDB ! Date: 23-FEB-1994:05:10:48 coverpage: title_1: BINARIES IN GLOBULAR CLUSTERS (FOS 37): CYCLE 3 (HIGH PRIORITY) 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, GLOBULAR CLUSTER, NEUTRON STAR hours_pri: 3.81 num_pri: 1 fos: Y pi_position: CHAIR AND PROFESSOR ! end of coverpage abstract: line_1: FOS spectroscopy will be used to probe the nature of the line_2: optical/UV counterpart to the luminous central X-ray burst line_3: source in NGC 6624. ! ! end of abstract general_form_proposers: lname: MARGON fname: BRUCE inst: WASHINGTON, UNIVERSITY OF country: USA ! lname: HARMS fname: RICHARD mi: J. inst: APPLIED RESEARCH CORPORATION country: USA ! lname: ANGEL fname: J. ROGER mi: P. inst: ARIZONA, UNIVERSITY OF country: USA ! lname: BARTKO fname: FRANK inst: UC, CASTLE ROCK country: USA ! lname: BEAVER fname: EDWARD inst: UC, SAN DIEGO country: USA ! lname: BOHLIN fname: RALPH inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! lname: BURBIDGE fname: E. MARGARET inst: UC, SAN DIEGO country: USA ! lname: DAVIDSEN fname: ARTHUR mi: F. inst: JOHNS HOPKINS UNIVERSITY country: USA ! lname: HARTIG fname: GEORGE 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: UV FOS spectra will taken of the optical/UV counterpart of line_2: core X-ray source in NGC 6624. FOS target acquisition will line_3: be difficult in crowded globular cluster core, but should line_4: be feasible as this single star accounts for virtually line_5: all of UV flux in cluster core. An initial short science FOS line_6: exposure with 4.3" aperture will be taken after a blind line_7: pointing (no TA). Then, following eventual TA into 0.5" line_8: aperture (using peak-ups through UV grating), a second and line_9: longer FOS UV spectrum will be taken. ! 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: 10 section: 1 line_1: Data analysis, research assistant support, and funding will be provided under line_2: NASA's FOS GTO contract(s). ! !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: 1 name_1: NGC6624-STAR descr_1: C,201,A,163 pos_1: RA =18H 20M 27.72S+/-0.1S, pos_2: DEC = -30D 23' 15.8"+/-1" equinox: 1950 acqpr_1: COMP comment_1: GLOBULAR CLUSTER WITH comment_2: CENTRAL X-RAY BURST SOURCE fluxnum_1: 1 fluxval_1: U=17.0+/-2.0 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: NGC6624-STAR config: FOS/BL opmode: RAPID aperture: 4.3 sp_element: G160L wavelength: 1150-2510 num_exp: 1 time_per_exp: 1400S fluxnum_1: 1 priority: 1 param_1: READ-TIME=40.0 req_1: CYCLE 3/1-5; comment_1: INITIAL SCIENCE EXPOSURE DONE WITH comment_2: BLIND POINTING (BEFORE TA) ! linenum: 2.000 targname: NGC6624-STAR config: FOS/BL opmode: ACQ/PEAK aperture: 4.3 sp_element: G160L wavelength: 1150-2510 num_exp: 1 time_per_exp: 50.0S fluxnum_1: 1 priority: 1 req_1: SPATIAL SCAN; req_2: ONBOARD ACQ FOR 3; comment_1: SINCE UV SOURCE IS TO BE ACQUIRED comment_2: WITHIN COMPLEX FIELD, PERFORM AN comment_3: INITIAL PEAK-UP WITH THE 4.3" comment_4: APERTURE AND UV GRATING. ! linenum: 3.000 targname: NGC6624-STAR config: FOS/BL opmode: ACQ/PEAK aperture: 1.0 sp_element: G160L wavelength: 1150-2510 num_exp: 1 time_per_exp: 100.0S fluxnum_1: 1 priority: 1 req_1: SPATIAL SCAN; req_2: ONBOARD ACQ FOR 4; comment_1: SINCE UV SOURCE IS TO BE ACQUIRED comment_2: WITHIN COMPLEX FIELD, PERFORM comment_3: FURTHER PEAK-UP WITH THE 1.0" comment_4: APERTURE AND UV GRATING. ! linenum: 4.000 targname: NGC6624-STAR config: FOS/BL opmode: ACQ/PEAK aperture: 0.5 sp_element: G160L wavelength: 1150-2510 num_exp: 1 time_per_exp: 160.0S fluxnum_1: 1 priority: 1 param_1: SEARCH-SIZE=3, param_2: SCAN-STEP=0.35 req_1: ONBOARD ACQ FOR 5; comment_1: SINCE THE 0.5" APERTURE IS USED comment_2: FOR THE SCIENCE OBS, WE NEED A comment_3: FINAL PEAK UP TO REFINE THE comment_4: CENTERING. ! linenum: 5.000 targname: NGC6624-STAR config: FOS/BL opmode: RAPID aperture: 0.5 sp_element: G160L wavelength: 1150-2510 num_exp: 1 time_per_exp: 4800S fluxnum_1: 1 priority: 1 param_1: READ-TIME=40.0 comment_1: SCIENCE EXPOSURE THROUGH 0.5" comment_2: APERTURE ! ! end of exposure logsheet scan_data: line_list: 2 fgs_scan: cont_dwell: D dwell_pnts: 3 dwell_secs: 1.00 scan_width: 0.0000 scan_length: 2.8000 sides_angle: 90.0000 number_lines: 1 scan_rate: 0.0000 first_line_pa: 0.0000 scan_frame: S/C len_offset: +1.4 wid_offset: 0.0 ! line_list: 3 fgs_scan: cont_dwell: D dwell_pnts: 6 dwell_secs: 1.00 scan_width: 0.7000 scan_length: 3.5000 sides_angle: 90.0000 number_lines: 2 scan_rate: 0.0000 first_line_pa: 90.0000 scan_frame: S/C len_offset: +1.75 wid_offset: 0.35 ! ! end of scan data