! $Id: 5157,v 7.1 1994/07/27 15:35:53 pepsa Exp $ coverpage: title_1: UV SPECTRA OF THE BRIGHTEST COMPONENTS OF R136 sci_cat: STELLAR ASTROPHYSICS proposal_for: GTO/HRS pi_title: DR. pi_fname: DENNIS pi_mi: C. pi_lname: EBBETS pi_inst: BALL AEROSPACE CORPORATION pi_country: USA pi_phone: (303) 939-5964 keywords_1: SUPERGIANT STAR, WOLF-RAYET STAR, LMC hours_pri: 3.92 num_pri: 3 pi_position: PRIN MEM TECH STAFF ! end of coverpage abstract: line_1: R136 is the bright central object of the 30 Doradus nebula. line_2: HST images with WFPC and FOC have resolved it into a tight line_3: cluster of several dozen stars, whose brightness and colors line_4: imply hot, massive, early type stars. This proposals defines line_5: GHRS UV spectra of the two brightest members. It is to be line_6: performed during cycle 4, with COSTAR in place, and assuming line_7: that side 1 of the GHRS is reactivated. Grating G140L will be line_8: used to record 1200 - 1760 A with a S/N=30 in the continuum. line_9: The small science aperture will be used to ensure spatial line_10: isolation of the components. line_11: line_12: submitted for cycle 4 catalog February 15, 1993 line_13: updated for cycle 4 phase 2 May 11, 1993 line_14: revised to delete R136A4 May 25, 1993 line_15: target acq revised April 27, 1994 ! end of abstract general_form_proposers: ! lname: EBBETS fname: DENNIS mi: C. inst: BALL AEROSPACE CORPORATION country: USA ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: lines 10,20 Onboard acq mirror N1 return to brightest point. line_2: lines 30,35 images of LSA with N1. line_3: lines 40,45,50 double RTB Peakup in SSA plus SSA image. line_4: line 55 small offset to A1 plus SSA image to verify. line_5: lines 60,70 Spectra at central wavelengths 1350 and 1620. line_6: G140L, Standard fp-splits and step-patterns at each. line_7: 20 minutes total exposure at each central wavelength. line_8: star A3 uses image only - no SSA peakup line_9: A3 spectra same as A1 ! ! question: 9 section: 1 line_1: GTO proposal 1188 in cycle 0 recorded the composite spectrum line_2: of R136 using G140L and the LSA. We also obtained LSA image line_3: mode maps with both N1 and N2, and measured the relative line_4: brightnesses of the components. Proposal 3210 in cycle 2 also line_5: provided N2 LSA images. All of these data were used to estimate line_6: the count rates for the individual components being observed line_7: with this proposal. The offset from component A1 to A3 line_8: was verified using the N2 LSA maps. line_9: ERO proposal 5297 verified target acquisition strategy. !end of general form text general_form_address: lname: EBBETS fname: DENNIS mi: C. title: DR. category: PI inst: BALL AEROSPACE SYSTEMS GROUP addr_1: GHRS PROJECT AR-1 addr_2: P.O. BOX 1062 city: BOULDER state: CO zip: 80306 country: USA phone: (303) 939-5964 ! end of general_form_address records fixed_targets: targnum: 1 name_1: R136A name_2: HD38268 descr_1: B,103,105,D,203 pos_1: RA = 5H 38M 42.448S +/- 0.1S, pos_2: DEC = -69D 06' 02.268" +/- 1", pos_3: PLATE-ID=06B0 equinox: 2000 pm_or_par: NO acqpr_1: COMP comment_1: coords. Malumuth and Heap 1994 comment_2: AJ 107 p1054 comment_3: mean pos. between A1 and A2 comment_4: GS PLATE ID = 06B0 fluxnum_1: 1 fluxval_1: V = 10.1 fluxnum_2: 2 fluxval_2: F-CONT(1350) = 2.0 E-13 fluxnum_3: 3 fluxval_3: F-CONT(1620) = 1.3 E-13 ! targnum: 2 name_1: R136A1 descr_1: B,103,105,D,203 pos_1: R = 0.10", pos_2: PA = 244D, pos_3: FROM 1, pos_4: PLATE-ID=06B0 equinox: 2000 pm_or_par: NO acqpr_1: COMP comment_1: intentionally offset more than comment_2: actual distance from ref point comment_7: GS PLATE ID = 06B0 fluxnum_1: 1 fluxval_1: F-CONT(1350) = 1 E-13 fluxnum_2: 2 fluxval_2: F-CONT(1620) = 7.2 E-14 ! targnum: 3 name_1: R136A3 descr_1: B,103,105,D,203 pos_1: R = 0.54", pos_2: PA = 228D, pos_3: FROM 1, pos_4: PLATE-ID=06B0 equinox: 2000 pm_or_par: NO acqpr_1: COMP comment_1: offset from mean position of A1-A2 comment_2: GS PLATE ID = 06B0 fluxnum_1: 1 fluxval_1: F-CONT(1350) = 2.0 E-13 fluxnum_2: 2 fluxval_2: F-CONT(1620) = 1.3 E-13 ! end of fixed targets exposure_logsheet: linenum: 10.000 targname: R136A config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 25S s_to_n: 10 fluxnum_1: 1 priority: 2 param_1: SEARCH-SIZE=5, param_2: BRIGHT=RETURN, req_1: ONBOARD ACQ FOR 20-120; req_2: CYCLE 4 / 10-120; comment_1: step time = 1 second ! linenum: 20.000 targname: R136A config: HRS opmode: ACQ/PEAKUP aperture: 2.0 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 102S s_to_n: 10 fluxnum_1: 1 priority: 2 comment_1: step time = 1 second ! linenum: 30.000 targname: R136A config: HRS opmode: IMAGE aperture: 2.0 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 96.8S s_to_n: 10 fluxnum_1: 1 priority: 2 param_1: NX=22, NY=22, param_2: DELTA-X=4, DELTA-Y=4, comment_1: step time = 0.2 seconds ! linenum: 35.000 targname: R136A config: HRS opmode: IMAGE aperture: 2.0 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 484S s_to_n: 10 fluxnum_1: 1 priority: 2 param_1: NX=22, NY=22, param_2: DELTA-X=2, DELTA-Y=2, comment_1: step time = 1 second ! linenum: 40.000 targname: R136A config: HRS opmode: ACQ/PEAKUP aperture: 0.25 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 25S s_to_n: 10 fluxnum_1: 1 param_1: SEARCH-SIZE=5, req_1: ONBOARD ACQ FOR 45; priority: 2 comment_1: first of two ssa peakups ! linenum: 45.000 targname: R136A config: HRS opmode: ACQ/PEAKUP aperture: 0.25 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 25S s_to_n: 10 fluxnum_1: 1 param_1: SEARCH-SIZE=5, req_1: ONBOARD ACQ FOR 50-120; priority: 2 comment_2: second of two ssa peakups ! linenum: 50.000 targname: R136A config: HRS opmode: IMAGE aperture: 0.25 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 256.0S s_to_n: 10 fluxnum_1: 1 priority: 2 param_1: NX=16, NY=16, param_2: DELTA-X=2, DELTA-Y=2, comment_1: step time = 1 second comment_2: image with A1+A2 centered in SSA ! linenum: 55.000 targname: R136A1 config: HRS opmode: IMAGE aperture: 0.25 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 256.0S s_to_n: 10 fluxnum_1: 1 priority: 2 param_1: NX=16, NY=16, param_2: DELTA-X=2, DELTA-Y=2, comment_1: step time = 1 second comment_2: image with A1 in SSA comment_3: A2 should be near the edge ! linenum: 60.000 targname: R136A1 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G140L wavelength: 1350 num_exp: 1 time_per_exp: 1203.2S s_to_n: 25 fluxnum_1: 1 priority: 2 param_1: STEP-PATT=2, param_2: FP-SPLIT=STD, ! linenum: 70.000 targname: R136A1 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G140L wavelength: 1620 num_exp: 1 time_per_exp: 1203.2S s_to_n: 25 fluxnum_1: 2 priority: 2 param_1: STEP-PATT=2, param_2: FP-SPLIT=STD, ! linenum: 100.000 targname: R136A3 config: HRS opmode: IMAGE aperture: 0.25 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 256.0S s_to_n: 10 fluxnum_1: 1 priority: 2 param_1: NX=16, NY=16, param_2: DELTA-X=2, DELTA-Y=2, comment_1: step time = 1 second comment_2: offset to A3 with no peakup ! linenum: 110.000 targname: R136A3 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G140L wavelength: 1350 num_exp: 1 time_per_exp: 1203.2S s_to_n: 25 fluxnum_1: 1 priority: 2 param_1: STEP-PATT=2, param_2: FP-SPLIT=STD, ! linenum: 120.000 targname: R136A3 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G140L wavelength: 1620 num_exp: 1 time_per_exp: 1203.2S s_to_n: 25 fluxnum_1: 2 priority: 2 param_1: STEP-PATT=2, param_2: FP-SPLIT=STD, ! END OF CYCLE 4 EXPOSURES