coverpage: title_1: MASSIVE STARS IN STARBURST GALAXIES-FOS EXPOSURES(PART2) title_2: CYCLE 4 CARRYOVER sci_cat: STELLAR POPULATIONS sci_subcat: MASSIVE STARS/BURSTS proposal_for: GO/CAR cont_id: 4250 pi_fname: TIMOTHY pi_mi: M. pi_lname: HECKMAN pi_inst: STSCI pi_country: USA pi_phone: 301-338-7369 hours_pri: 1.72 num_pri: 1 hrs: Y funds_amount: 268922 funds_length: 12 off_fname: HERVEY off_mi: S. off_lname: STOCKMAN off_title: DEPUTY DIRECTOR off_inst: SPACE TELESCOPE SCIENCE INSTITUTE off_addr_1: 3700 SAN MARTIN DRIVE off_city: BALTIMORE off_state: MD off_zip: 21218 off_country: USA off_phone: 301-338-4700 ! end of coverpage abstract: line_1: Starburst galaxies are ideal laboratories to study both the line_2: physics of massive stars and processes important in galaxy line_3: formation and evolution. Observations of these galaxies at line_4: ultraviolet wavelengths are crucial to our understanding of the line_5: starburst phenomenon, because only in this spectral regime can we line_6: directly observe the spectroscopic signatures of the hot, massive line_7: stars that power the emission at other wavebands. Indeed, we line_8: believe that the investigation of the UV properties of starburst line_9: galaxies is one of the most valuable tasks to be undertaken with line_10: HST. We have identified what we believe to be an optimal sample of line_11: the UV-brightest starburst galaxies in the local universe. These line_12: span as broad a range as possible in metal abundance and starburst line_13: luminosity. We describe an HST program designed to both give us a line_14: broad overview of the UV properties and stellar content of line_15: starbursts and to answer some important specific questions about line_16: starbursts. We anticipate that observations like these will be the line_17: prelude to a decade of fundamental and exciting HST research on line_18: massive stars and starburst galaxies. ! ! end of abstract general_form_proposers: lname: HECKMAN fname: TIMOTHY title: PI mi: M. inst: STSCI country: USA ! lname: GARNETT fname: DON inst: STSCI country: USA ! lname: KINNEY fname: ANNE inst: STSCI country: USA ! lname: LEITHERER fname: CLAUS inst: STSCI country: USA esa: Y ! lname: ROBERT fname: CARMELLE inst: STSCI country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: ! question: 3 section: 1 line_1: We wish to obtain two GHRS spectra of the target NGC1705 using line_2: the G140L grating and the small science aperture. The first line_3: spectrum should be centered on 1320A and the second on 1600A line_4: so that we cover the spectral region from about 1180 to 1740 line_5: A. Given the relative throughput of the GHRS in these two line_6: spectral windows, we require exposure times of 1200s and line_7: 2400s respectively. To insure an accurate wavelength scale line_8: we will precede each exposure with a wavelength calibration. line_9: We will employ a two-stage ACQ/PEAK-UP using first the 2.0 line_10: aperture and then the 0.25 aperture. line_11: line_12: line_13: line_14: line_15: line_16: line_17: line_18: ! question: 4 section: 1 line_1: The space-UV is the spectral region in which the hot, massive stars line_2: that power starburst galaxies can be best directly observed. IUE line_3: has too little collecting area and too poor spectral resolution line_4: to discriminate between an interstellar, photospheric, or stellar line_5: wind origin for the UV absorption lines seen in starbursts. ! question: 5 section: 1 line_1: None ! question: 6 section: 1 line_1: We have no special requirements. ! question: 7 section: 1 line_1: The radial velocity, equivalent width, width, and flux will be line_2: measured for all stellar and interstellar absorption lines and all line_3: emission lines in the GHRS spectra. The broad profiles of the line_4: stellar wind lines will be compared to model profiles produced line_5: by Leitherer and Robert. Data analysis will be conducted at line_6: STScI and JHU. ! question: 8 section: 1 line_1: None. ! question: 9 section: 1 line_1: Program 2644 "The Environments of Starburst Galaxies" C.A. Norman (PI), line_2: J.C. Blades, L. Danly, and T. Heckman (coI's). No observations for line_3: this program have been obtained yet. ! question: 10 section: 1 line_1: The data reduction and analysis will be undertaken at STScI line_2: and at JHU. The extensive computer software, and HRS, and FOC line_3: expertise available at these two institutions will be utilized (see line_4: above). We will use the SDA ('Science Data Analyst') pool at STScI line_5: to assist us in the data reduction and analysis. STScI will pay 25 percent line_6: of the salary of this person. In addition, at least one JHU graduate line_7: student (supported by other contract funds) will be involved in the line_8: portion of the project dealing with interstellar absorption lines. ! !end of general form text general_form_address: lname: HECKMAN fname: TIMOTHY mi: M. category: PI inst: STSCI addr_1: 3700 SAN MARTIN DRIVE city: BALTIMORE state: MD zip: 21218 country: USA phone: 301-338-7369 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: NGC1705 descr_1: E,318,928 pos_1: RA=04H 54M 13.4S +/- 0.1S, pos_2: DEC=-53D 21' 38.9" +/-1.0" equinox: 2000 pos_epoch_bj: J pos_epoch_yr: 1990.00 acqpr_1: EXT fluxval_1: F(1500)=1.0 E-13 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 100.000 targname: NGC1705 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 150S priority: 1 param_2: SEARCH-SIZE=5 param_3: BRIGHT=RETURN req_1: CYCLE 4; req_4: ONBOARD ACQ FOR 101; comment_1: STEP-TIME=6S; ! linenum: 101.000 targname: NGC1705 config: HRS opmode: ACQ/PEAKUP aperture: 0.25 sp_element: MIRROR-N1 num_exp: 1 time_per_exp: 125S priority: 1 param_2: SEARCH-SIZE=5 req_1: CYCLE 4; req_4: ONBOARD ACQ FOR 102 comment_1: STEP-TIME=5S; ! linenum: 102.000 targname: WAVE config: HRS opmode: ACCUM aperture: SC2 sp_element: G140L wavelength: 1320 num_exp: 1 time_per_exp: 60S priority: 1 req_1: CYCLE 4; req_2: CALIB FOR 103; req_4: SEQUENCE 102-105 NO GAP; linenum: 103.000 targname: NGC1705 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G140L wavelength: 1320 num_exp: 1 time_per_exp: 1200S priority: 1 req_1: CYCLE 4; ! linenum: 104.000 targname: WAVE config: HRS opmode: ACCUM aperture: SC2 sp_element: G140L wavelength: 1600 num_exp: 1 time_per_exp: 60S priority: 1 req_1: CYCLE 4; req_2: CALIB FOR 105; linenum: 105.000 targname: NGC1705 config: HRS opmode: ACCUM aperture: 0.25 sp_element: G140L wavelength: 1600 num_exp: 1 time_per_exp: 2400S priority: 1 req_1: CYCLE 4; !