! File: 4132C.PROP ! Database: PEPDB ! Date: 20-FEB-1994:10:00:32 coverpage: title_1: BINARIES IN GLOBULAR CLUSTERS (FOS 37): title_2: FUTURE-CYCLE CONTINUATION 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 hours_pri: 4.67 num_pri: 4 wf_pc: Y fos: Y 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 line_5: historical nova T-Sco in NGC6093 (M80), possibly also resulting in line_6: an expansion parallax for the cluster. ! ! 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: BARTKO SCIENCE AND TECHNOLOGY 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: WF/PC images of globular clusters NGC6093 and NGC6624 with line_2: interacting binary candidates will be obtained. Candidates line_3: will be selected from the WFPC images, by looking for objects line_4: with a UV excess. For NGC6093, the WFPC images also serve as line_5: EARLY ACQ for FOS spectra. If no interesting candidates are line_6: found in NGC6093, no followup spectra will be taken. If an line_7: interesting looking candidate is found, then spectra will be line_8: obtained, with the specific gratings to be used determined by line_9: the quality of the candidate. ! question: 5 section: 1 line_1: The WFC and PC exposures MUST be obtained AFTER the UV flood. line_2: The images must be obtained NON-INT to avoid unnecessary line_3: readout noise in these low S/N data. For NGC6093, we will line_4: need to set the FOS REJLIM parameter based on the true line_5: magnitude of the candidate star obtained from the PC images. ! 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 in NGC6093 will appear in WF/PC line_2: images. If identical guide stars are available for both line_3: PC and FOS observations, FOS acquisition could be significantly line_4: faster and more reliable. If not, we will offset from an line_5: arbitrary anonymous bright star 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: 13 section: 1 line_1: Multicolor WF/PC images will be used to search for the optical line_2: counterparts of an X-ray binary, and a historical novae in line_3: two globular clusters, NGC6624 and NGC6093. Spectra will be line_4: obtained for the nova candidate to yield abundances and line_5: possibly an expansion parallax for NGC6093, as well as a line_6: spectroscopic ID. ! !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: NGC6093 name_2: M80 descr_1: C,201,A,150 pos_1: RA = 16H 14M 03.4S +/- 0.5S, pos_2: DEC = -22D 51' 09.2" +/- 1.0" equinox: 1950 comment_1: COORDINATES FROM A.J. 91, 312, 1986 fluxnum_1: 1 fluxval_1: SURF(V) = 14.4 +/- 0.5 ! targnum: 2 name_1: NGC6093-OFFSET descr_1: C,201,A,150 pos_1: TBD-EARLY, pos_2: RA =16H 14.1M +/-0.1M, pos_3: DEC = -22D 52' +/- 1.5' equinox: 1950 fluxnum_1: 1 fluxval_1: SURF(V) = 14.4 +/- 0.5 ! targnum: 3 name_1: NGC6093-NOVA name_2: T-SCO descr_1: C,201,A,150 pos_1: TBD-EARLY, pos_2: RA-OFF = 0S +/- 0.72S, pos_3: DEC-OFF = 0" +/- 10", pos_4: FROM 2 equinox: 1950 acqpr_1: COMP fluxnum_1: 1 fluxval_1: SURF(V) = 14.4 +/- 0.5 ! targnum: 4 name_1: NGC6624 descr_1: C,201,I,605 pos_1: RA =18H 20M 27.8S+/-0.1S, pos_2: DEC = -30D 23' 17.0"+/-1" equinox: 1950 comment_1: GLOBULAR CLUSTER WITH comment_2: CENTRAL X-RAY SOURCE fluxnum_1: 1 fluxval_1: SURF(V) = 14.5+/-3.0 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 8.000 sequence_1: DEFINE sequence_2: PCII targname: # config: PC opmode: IMAGE aperture: P8 sp_element: F284W wavelength: 2841 num_exp: 1 time_per_exp: 1000S fluxnum_1: 1 priority: 1 param_1: PRE-FLASH=YES, param_2: CR-SPLIT=0.5 req_1: SEQ 8-10 NO GAP; req_2: NON-INT / 8-10; req_3: POS TARG 11.1,-11.1 / 8-10 ! linenum: 9.000 sequence_1: DEFINE sequence_2: PCII targname: # config: PC opmode: IMAGE aperture: P8 sp_element: F336W wavelength: 3363 num_exp: 1 time_per_exp: 1000S fluxnum_1: 1 priority: 1 param_1: PRE-FLASH=YES, param_2: CR-SPLIT=0.5 ! linenum: 10.000 sequence_1: DEFINE sequence_2: PCII targname: # config: PC opmode: IMAGE aperture: P8 sp_element: F439W wavelength: 4385 num_exp: 1 time_per_exp: 500S fluxnum_1: 1 priority: 1 param_1: PRE-FLASH=YES, param_2: CR-SPLIT=0.5 comment_1: PC PICTURES FOR CENTRAL SOURCES. ! linenum: 14.000 sequence_1: DEFINE sequence_2: OFFSET-CO targname: # config: FOS/RD opmode: ACQ/BINARY aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 2.1S fluxnum_1: 1 priority: 1 param_1: BRIGHT=33000, param_2: FAINT=660 comment_1: ACQUIRE OFFSET STAR. comment_2: THE EXPOSURE TIME WILL BE comment_3: UPDATED ONCE THE OBJECT IS comment_4: FOUND ON THE WF/PC IMAGE. ! linenum: 15.000 sequence_1: DEFINE sequence_2: IDGOOD-CO targname: # config: FOS/RD opmode: ACCUM aperture: 0.3 sp_element: G650L num_exp: 1 time_per_exp: 4000S fluxnum_1: 1 priority: 1 comment_1: ID CERTAIN. ! linenum: 17.000 sequence_1: DEFINE sequence_2: IDBAD-CO targname: # config: FOS/RD opmode: ACCUM aperture: 0.3 sp_element: PRISM num_exp: 1 time_per_exp: 1300S fluxnum_1: 1 priority: 1 comment_1: ID UNCERTAIN. ! linenum: 209.000 sequence_1: USE sequence_2: PCII targname: NGC6093 req_1: CYCLE 9/ 209-221; comment_1: EARLY ACQ IMAGES WHICH comment_2: WILL BE USED TO DETERMINE comment_3: FOS SPECTROSCOPY. GTO TO comment_4: CHOOSE BETWEEN 210-211 AND comment_5: 211.5-212 AND NOTIFY STSCI. ! linenum: 210.000 sequence_1: USE sequence_2: OFFSET-CO targname: NGC6093-OFFSET req_1: ONBOARD ACQ FOR 211; req_2: SELECT 1 OF 210-211 OR req_3: 211.5-212; COND IF req_4: UNAMBIGUOUS CANDIDATE req_5: FOUND / 210-211; REQ req_6: UPDATE; comment_1: BLIND OFFSET TO OBJECT. comment_2: AFTER 209 BY 60 DAYS. comment_3: COND ON 209 IF UNAMBIGUOUS comment_4: CANDIDATE FOUND. ! linenum: 211.000 sequence_1: USE sequence_2: IDGOOD-CO targname: NGC6093-NOVA comment_1: REJLIM WILL NEED TO BE SET comment_2: BASED ON THE TRUE MAG OF THE STAR. comment_3: SEE GF5. COND ON 209 IF UNAMBIGUOUS comment_4: CANDIDATE FOUND. ! linenum: 211.500 sequence_1: USE sequence_2: OFFSET-CO targname: NGC6093-OFFSET req_1: ONBOARD ACQ FOR 212; req_2: COND IF AMBIGUOUS req_3: CANDIDATE FOUND / 211.5-212; req_4: REQ UPDATE; comment_1: BLIND OFFSET TO OBJECT. comment_2: AFTER 209 BY 60 DAYS. comment_3: COND ON 209 IF AMBIGUOUS comment_4: CANDIDATE FOUND. ! linenum: 212.000 sequence_1: USE sequence_2: IDBAD-CO targname: NGC6093-NOVA comment_1: REJLIM WILL NEED TO BE SET comment_2: BASED ON THE TRUE MAG OF THE STAR. comment_3: SEE GF5. COND ON 209 IF AMBIGUOUS comment_4: CANDIDATE FOUND. ! linenum: 221.000 sequence_1: USE sequence_2: PCII targname: NGC6624 comment_1: IMAGES FOR NGC6624, GLOBULAR comment_2: CLUSTER WITH CENTRAL X-RAY SOURCE ! ! end of exposure logsheet ! No scan data records found