! File: 4531C.PROP ! Database: PEPDB ! Date: 22-FEB-1994:16:28:33 coverpage: title_1: THE STELLAR CONTENT OF WOLF-RAYET GALAXIES title_2: CYC3 SUPPLEMENTAL sci_cat: STELLAR POPULATIONS sci_subcat: YOUNG FIELD STARS proposal_for: GO pi_title: DR. pi_fname: PETER pi_mi: S. pi_lname: CONTI pi_inst: JILA pi_country: USA pi_phone: (303) 492-8497 keywords_1: LBV'S, WOLF-RAYET STARS, STARBURSTS hours_pri: 7.50 num_pri: 18 wf_pc: Y fos: Y pi_position: ASTRONOMER off_fname: LAURENCE off_mi: D. off_lname: NELSON off_title: DIR/OCG off_inst: THE REGENTS OF THE UNIVERSITY OF COLORADO off_addr_1: BOX 19 off_addr_2: UNIVERSITY OF COLORADO off_city: BOULDER off_state: CO off_zip: 803090019 off_country: USA off_phone: (303) 492-6221 ! end of coverpage abstract: line_1: We propose to observe a comprehensive sample of Wolf-Rayet (W-R) galaxies line_2: --- starburst galaxies in which broad 4686 He II emission of stellar line_3: origin has been detected. These galaxies generally contain far more W-R line_4: stars than the Milky Way, M31, and other normal galaxies. The line_5: WFPC images and FOS spectra will be combined with optical and infrared line_6: data as part of a large effort to perform a broad, systematic analysis line_7: of the properties of W-R galaxies. The UV data obtained with HST will line_8: provide crucial constraints on the hot star (O and W-R) populations, and line_9: will lead to a better understanding of the physical conditions, initial line_10: mass functions, and starburst parameters of these galaxies. The overall line_11: continuum will be analyzed within the framework of evolutionary and line_12: spectral synthesis models that we are developing. Quantitative line_13: spectroscopy of UV resonance lines will allow us to study the hot star line_14: populations in detail, and to directly measure the number of OB stars line_15: within these galaxies. Our main goal is to determine which physical line_16: properties of W-R galaxies (e.g., IMF slope, chemical composition, age, line_17: strength and duration of the starburst) have led to the production of line_18: large numbers of W-R stars. The results of this study will have line_19: important implications for our understanding of W-R galaxies, and also line_20: of starburst and emission-line galaxies in general. ! ! end of abstract general_form_proposers: lname: CONTI fname: PETER title: PI mi: S. inst: UNIVERSITY OF COLORADO country: USA ! lname: FILIPPENKO fname: ALEXEI mi: V. inst: UNIVERSITY OF CALIFORNIA, BERKELEY country: USA ! lname: LEITHERER fname: CLAUS inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! lname: ROBERT fname: CARMELLE inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! lname: SARGENT fname: WALLACE mi: L. inst: CALIFORNIA INSTITUTE OF TECHNOLOGY country: USA ! lname: VACCA fname: WILLIAM mi: D. inst: UNIVERSITY OF CALIFORNIA, BERKELEY country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: We would like to obtain WFPC images of ALL of our W-R galaxies. line_2: We anticipate that many if not most of our systems will contain multiple line_3: knots of hot stars which will readily stand out against the overall line_4: galaxy background in these wavelengths. Ground-based observations line_5: suggest typical knot-sizes of approximately 3". The WFPC line_6: set-up meets the following requirements: (i) large FOV; (ii) image scale line_7: small enough to maximize count-rate; (iii) sampling large enough to line_8: study spatial morphology; (iv) no significant red leak. The data line_9: serve a threefold purpose: (i) morphology; (ii) flux measurement for line_10: FOS; (iii) check for potential difficulties in the FOS target line_11: acquisition. line_12: We would also like to obtain FOS spectra of the brightest knots of line_13: some W-R galaxies. The objects will be selected on the basis of the FOC line_14: data. The scientific goal can be best achieved with the FOS and gratings line_15: G130H and G190H. We intend to use the blue-side detector for both line_16: gratings. The positions and the exposure times of the candidates for line_17: FOS spectroscopy will be updated in order to ensure successful target line_18: acquisition. A peak-up technique is used for the TA. ! question: 4 section: 1 line_1: line_3: It is the combination of the superior resolution (IUE: 6A; FOS: 3A for line_4: a knot of 2-3") and vastly better S/N (IUE: typically 10; FOS: 35 for line_5: our proposed observations) of HST data which provide a dramatic line_6: improvement. STRONG lines (like C IV) can be modeled quantitatively line_7: with HST, and WEAKER lines (like N IV 1718, which is an important line_8: signature of hot EVOLVED stars) can only be detected with HST, in line_9: contrast to IUE. ! question: 5 section: 1 line_1: None. ! question: 6 section: 1 line_1: No special calibrations are requested. ! question: 7 section: 1 line_1: The general management of the observations (including the ground line_2: observations) and the data reduction and interpretation will be line_3: coordinated by Peter Conti. line_4: Reduction of the images with deconvolution techniques will be done line_5: under P. Conti's supervision at JILA utilizing a graduate student RA. line_6: FOS deconvolution will be carried out by Claus Leitherer. P. Conti is line_7: also in charge of the pre-analysis of the HST observations (line line_8: identification, interstellar extinction...). Other observations from line_9: the ground are to be acquired, reduced and analysed by A. Filippenko, line_10: Sargent and W. Vacca. line_11: The population synthesis models will be done at STScI by Carmelle line_12: Robert and Claus Leitherer. All co-Is will be intimately involved with line_13: data analysis and interpretation. ! question: 8 section: 1 line_1: The HST observations are supported by ground-based observations. There line_2: is no need for simultaneous observations. ! !end of general form text general_form_address: lname: CONTI fname: PETER mi: S title: DR. category: PI inst: JILA/UNIV. OF COLORADO addr_1: CAMPUS BOX 440 city: BOULDER state: CO zip: 80309 country: USA phone: (303) 492-8497 telex: 755842 JILA ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC1614 descr_1: E,318,928 pos_1: RA=4H 33M 59.6S +/- 0.1S, pos_2: DEC=-8D 34' 46.2" +/-1" equinox: 2000 pos_epoch_bj: J pos_epoch_yr: 1990.00 acqpr_1: EXT fluxnum_1: 1 fluxval_1: V=14.0 +/- 1.0 ! targnum: 2 name_1: MRK1087 descr_1: E,318,928 pos_1: RA=4H 49M 44.4S +/- 0.1S, pos_2: DEC=+3D 20' 02.5" +/-1" equinox: 2000 pos_epoch_bj: J pos_epoch_yr: 1990.00 acqpr_1: EXT fluxnum_1: 1 fluxval_1: V=15.0 +/- 1.0 ! targnum: 3 name_1: NGC1741 descr_1: E,318,928 pos_1: RA=5H 01M 37.7S +/- 0.1S, pos_2: DEC=-4D 15' 31.4" +/-1" equinox: 2000 pos_epoch_bj: J pos_epoch_yr: 1990.00 acqpr_1: EXT fluxnum_1: 1 fluxval_1: V=14.0 +/- 1.0 ! targnum: 7 name_1: HE2-10 descr_1: E,318,928 pos_1: RA=8H 36M 15.1S +/- 0.1S, pos_2: DEC=-26D 24' 34.1" +/-1" equinox: 2000 pos_epoch_bj: J pos_epoch_yr: 1990.00 acqpr_1: EXT fluxnum_1: 1 fluxval_1: F(2200)= 2.5 E-15 ! targnum: 8 name_1: MRK1236 descr_1: E,318,928 pos_1: RA=9H 49M 54.1S +/- 0.1S, pos_2: DEC=+00D 36' 58.1" +/-1" equinox: 2000 pos_epoch_bj: J pos_epoch_yr: 1990.00 acqpr_1: EXT fluxnum_1: 1 fluxval_1: V=14.0 +/- 1.0 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 100.000 targname: HE2-10 config: FOS/BL opmode: ACQ/PEAK aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 1.0S priority: 1 param_1: TYPE=UP param_2: SEARCH-SIZE-X=1 param_3: SEARCH-SIZE-Y=3 param_4: SCAN-STEP-Y=1.4 req_1: CYCLE 3; req_4: ONBOARD ACQ FOR 101; ! linenum: 101.000 targname: HE2-10 config: FOS/BL opmode: ACQ/PEAK aperture: 1.0 sp_element: MIRROR num_exp: 1 time_per_exp: 2.0S priority: 1 param_1: TYPE=UP param_2: SEARCH-SIZE-X=6 param_3: SEARCH-SIZE-Y=2 param_4: SCAN-STEP-X=0.7 param_5: SCAN-STEP-Y=0.7 req_1: CYCLE 3; req_4: ONBOARD ACQ FOR 102 ! linenum: 102.000 targname: HE2-10 config: FOS/BL opmode: ACQ/PEAK aperture: 0.5 sp_element: MIRROR num_exp: 1 time_per_exp: 4.0S priority: 1 param_1: TYPE=UP param_2: SEARCH-SIZE-X=3 param_3: SEARCH-SIZE-Y=3 param_4: SCAN-STEP-X=0.35 param_5: SCAN-STEP-Y=0.35 req_1: CYCLE 3; req_4: ONBOARD ACQ FOR 103-105; ! linenum: 103.000 targname: HE2-10 config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G130H num_exp: 1 time_per_exp: 9300S priority: 1 req_1: CYCLE 3; req_4: SEQ 100-105 NO GAP; ! linenum: 104.000 targname: HE2-10 config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G190H num_exp: 1 time_per_exp: 4000S priority: 1 req_1: CYCLE 3; ! linenum: 105.000 targname: HE2-10 config: FOS/BL opmode: ACQ aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 300S priority: 1 req_1: CYCLE 3; comment_4: IMAGE TO LOCATE THE APERTURE; ! linenum: 200.000 targname: NGC1614 config: PC opmode: IMAGE aperture: PCALL sp_element: F439W num_exp: 1 time_per_exp: 20M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SEQ 200-202 NO GAP ! linenum: 201.000 targname: NGC1614 config: PC opmode: IMAGE aperture: PCALL sp_element: F555W num_exp: 1 time_per_exp: 15M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; ! linenum: 202.000 targname: NGC1614 config: PC opmode: IMAGE aperture: PCALL sp_element: F785LP num_exp: 1 time_per_exp: 10M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SAME ORIENT FOR 201,202 AS 200; ! linenum: 300.000 targname: NGC1741 config: PC opmode: IMAGE aperture: PCALL sp_element: F439W num_exp: 1 time_per_exp: 20M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SEQ 300-302 NO GAP ! linenum: 301.000 targname: NGC1741 config: PC opmode: IMAGE aperture: PCALL sp_element: F555W num_exp: 1 time_per_exp: 15M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; ! linenum: 302.000 targname: NGC1741 config: PC opmode: IMAGE aperture: PCALL sp_element: F785LP num_exp: 1 time_per_exp: 10M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SAME ORIENT FOR 301,302 AS 300; ! linenum: 400.000 targname: HE2-10 config: PC opmode: IMAGE aperture: PCALL sp_element: F439W num_exp: 1 time_per_exp: 20M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SEQ 400-402 NO GAP ! linenum: 401.000 targname: HE2-10 config: PC opmode: IMAGE aperture: PCALL sp_element: F555W num_exp: 1 time_per_exp: 15M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; ! linenum: 402.000 targname: HE2-10 config: PC opmode: IMAGE aperture: PCALL sp_element: F785LP num_exp: 1 time_per_exp: 10M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SAME ORIENT FOR 401,402 AS 400; ! linenum: 500.000 targname: MRK1236 config: PC opmode: IMAGE aperture: PCALL sp_element: F439W num_exp: 1 time_per_exp: 20M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SEQ 500-502 NO GAP ! linenum: 501.000 targname: MRK1236 config: PC opmode: IMAGE aperture: PCALL sp_element: F555W num_exp: 1 time_per_exp: 15M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; ! linenum: 502.000 targname: MRK1236 config: PC opmode: IMAGE aperture: PCALL sp_element: F785LP num_exp: 1 time_per_exp: 10M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SAME ORIENT FOR 501,502 AS 500; ! linenum: 600.000 targname: MRK1087 config: PC opmode: IMAGE aperture: PCALL sp_element: F439W num_exp: 1 time_per_exp: 20M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SEQ 600-602 NO GAP ! linenum: 601.000 targname: MRK1087 config: PC opmode: IMAGE aperture: PCALL sp_element: F555W num_exp: 1 time_per_exp: 15M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; ! linenum: 602.000 targname: MRK1087 config: PC opmode: IMAGE aperture: PCALL sp_element: F785LP num_exp: 1 time_per_exp: 10M priority: 1 param_1: CR-SPLIT=NO req_1: CYCLE 3; req_2: SAME ORIENT FOR 601,602 AS 600; ! ! end of exposure logsheet ! No scan data records found