! $Id: 5673,v 5.1 1995/02/16 15:03:14 pepsa Exp $ coverpage: title_1: CEPHEID MASSES - CYC 4 HIGH - PART 2 sci_cat: COOL STARS sci_subcat: PULSATING STARS proposal_for: GO CONT_ID: 5357 TIME_CRIT: N longterm: 3 pi_fname: ERIKA pi_mi: HR pi_lname: BOHM-VITENSE pi_inst: 3760 pi_country: USA pi_phone: 206 543 4858 hours_pri: 1.61 num_pri: 2 hrs: Y funds_length: 36 off_fname: DONALD off_mi: W off_lname: ALLEN off_title: DIRECTOR off_inst: 3760 off_addr_1: 3935 UNIVERSITY WAY NE off_addr_2: JM-24 off_city: SEATTLE off_state: WA off_zip: 98195 off_country: U.S.A. off_phone: 206 543 4043 ! end of coverpage abstract: line_1:For 2 decades the "Cepheid mass problem" has persisted: Mass line_2:determinations from standard evolutionary tracks and those from line_3:pulsation theory gave conflicting values. The luminosity of a Cepheid line_4:of given mass depends sensitively on the amount of convective overshoot line_5:above the core of the main sequence progenitor. Hence a good mass line_6:determination for the Cepheid with known luminosity will measure the line_7:amount of convective core overshoot. This knowledge is important for line_8:interpretation of HR diagrams of populous clusters in the LMC and line_9:especially for age determinations. It is also necessary for the line_10:understanding of the mixing processes in stars. line_11: Program 5357 obtained the GHRS spectra for this program. This is line_12: a follow-on part 2 to obtain the calibration spectra to measure the line_13: radial velocity of the 2 primary targets observed in 5357. ! ! end of abstract general_form_proposers: lname: BOHM-VITENSE fname: ERIKA mi: HR inst: 3760 country: U.S.A. ! lname: EVANS fname: NANCY mi: R inst: INST. SPACE & TERRESTRIAL SCIENCE, NORTH YORK country: CANADA ! lname: CARPENTER fname: KENNETH mi: G inst: 2856 country: U.S.A. GENERAL_FORM_ADDRESS: ! The PI's address: LNAME: BOHM-VITENSE FNAME: ERIKA MI: HR CATEGORY: PI INST: 3760 ADDR_1: ASTR.DEP. FM-20 ADDR_2: UNIVERSITY OF WASHINGTON CITY: SEATTLE STATE: WA ZIP: 98195 COUNTRY: USA PHONE: 206 543 4858 TELEX:206 685 0403 ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1:The purpose of this proposal is to obtain GHRS calibration spectra line_2: on two targets. Standard GHRS spectra will be obtained after routine line_3: onboard target acquisitions are performed. Internal wavelength line_4: calibrations are performed in association with the external line_5: observations. ! general_form_address: lname: BOHM-VITENSE fname: ERIKA mi: HR category: PI inst: 3760 addr_1: ASTRONOMY DEPARTMENT FM-20 addr_2: UNIVERSITY OF WASHINGTON city: SEATTLE state: WA zip: 98195 country: U.S.A. phone: (206) 543 4858 ! ! end of general_form_address records fixed_targets: targnum: 2 name_1: HD66591-CALIB name_2: HR3159 descr_1: A,111 pos_1: RA= 08H 00M 20.00S +/- 1.0", pos_2: DEC= -63D 34' 03.2" +/- 1.0", pos_3: PLATE-ID=00MQ equinox: 2000 pm_or_par: Y pos_epoch_bj: J pos_epoch_yr: 1980.00 ra_pm_val: 0.001003 ra_pm_unct: 0.000030 dec_pm_val: 0.0200 dec_pm_unct: 0.0100 an_prlx_val: 0.0040 an_prlx_unct: 0.0010 rv_or_z: V=22.0 fluxnum_1: 1 fluxval_1: V=4.82+/-0.02, TYPE=B3V fluxnum_2: 1 fluxval_2: B-V=-0.17+/-0.02 fluxnum_3: 2 fluxval_3: E(B-V)=0.0 fluxnum_4: 3 fluxval_4: F-CONT(1722)=5.0E-10 comment_1: THIS IS A VELOCITY CALIBRATION STAR comment_2: FOR THE OBSERVATIONS OF S-MUS ! targnum: 4 name_1: HD172167-CALIB name_2: HR7001 name_3: ALPHA-LYRAE descr_1: A,123 pos_1: RA= 18H 36M 56.3S +/-0.1S, pos_2: DEC= +38D 47' 01" +/-1" equinox: 2000.00 pm_or_par: Y pos_epoch_bj: J pos_epoch_yr: 2000.00 ra_pm_val: 0.017096 ra_pm_unct: 0.000599 dec_pm_val: 0.2900 dec_pm_unct: 0.0300 an_prlx_val: 0.1200 an_prlx_unct: 0.0100 rv_or_z: V=-14.0 fluxnum_1: 1 fluxval_1: V=0.02+/-0.02, TYPE=A0V fluxnum_2: 1 fluxval_2: B-V=0.01 fluxnum_3: 2 fluxval_3: E(B-V)=0.0 fluxnum_4: 3 fluxval_4: F-CONT(1860)=5.5E-9 comment_1: THIS IS A CALIBRATION STAR comment_2: TO MEASURE THE RADIAL comment_3: VELOCITY OF Y-CAR-B ! exposure_logsheet: LINENUM: 71.0 TARGNAME: HD66591-CALIB CONFIG: HRS OPMODE: ACQ APERTURE: 2.0 SP_ELEMENT: MIRROR-N2 PARAM_1: LOCATE=YES, PARAM_2: BRIGHT=RETURN, PARAM_3: SEARCH-SIZE=3 NUM_EXP: 1 TIME_PER_EXP: 1.8S FLUXNUM_1: 1 PRIORITY: 1 REQ_1: ONBOARD ACQ FOR 71.2-71.6; REQ_2: SEQ 71.0-71.8 NO GAP; REQ_3: CYCLE 4/71.0-81.6; COMMENT_1: USE STEP-TIME = 0.2 SEC. COMMENT_2: EXPECT 12000. CTS/200MS COMMENT_3: THIS STAR WAS OBSERVED ALSO IN DEC 93 ! LINENUM: 71.2 TARGNAME: HD66591-CALIB CONFIG: HRS OPMODE: ACQ/PEAKUP APERTURE: 0.25 SP_ELEMENT: MIRROR-N2 PARAM_1: SEARCH-SIZE=5 NUM_EXP: 1 TIME_PER_EXP: 10.0S FLUXNUM_1: 1 PRIORITY: 1 REQ_1: ONBOARD ACQ FOR 71.4-71.8; REQ_2: SEQ 71.2-71.8 NON-INT; COMMENT_1: STEP-TIME = 0.2 SEC ! LINENUM: 71.4 TARGNAME: WAVE CONFIG: HRS OPMODE: ACCUM APERTURE: SC2 SP_ELEMENT: ECH-B WAVELENGTH: 1722.0 PARAM_1: STEP-PATT=3 NUM_EXP: 1 TIME_PER_EXP: 30.0S PRIORITY: 1 REQ_1: CALIB FOR 71.6 NO SLEW; ! LINENUM: 71.6 TARGNAME: HD66591-CALIB CONFIG: HRS OPMODE: ACCUM APERTURE: 0.25 SP_ELEMENT: ECH-B WAVELENGTH: 1722.0 PARAM_1: STEP-PATT=7, PARAM_2: FP-SPLIT=NO NUM_EXP: 2 TIME_PER_EXP: 27.2S S_TO_N: 15 FLUXNUM_1: 2 PRIORITY: 1 COMMENT_1: S/N IS FOR SUM OF 2 EXP'S ! LINENUM: 71.8 TARGNAME: WAVE CONFIG: HRS OPMODE: ACCUM APERTURE: SC2 SP_ELEMENT: ECH-B WAVELENGTH: 1722.0 PARAM_1: STEP-PATT=3 NUM_EXP: 1 TIME_PER_EXP: 30.0S PRIORITY: 1 REQ_1: CALIB FOR 71.6 NO SLEW ! LINENUM: 81.0 TARGNAME: HD172167-CALIB CONFIG: HRS OPMODE: ACQ APERTURE: 2.0 SP_ELEMENT: MIRROR-A2 PARAM_1: LOCATE=YES, PARAM_2: BRIGHT=RETURN, PARAM_3: SEARCH-SIZE=3 NUM_EXP: 1 TIME_PER_EXP: 1.8S FLUXNUM_1: 1 PRIORITY: 1 REQ_1: ONBOARD ACQ FOR 81.2-81.6; REQ_2: SEQ 81.0-81.6 NO GAP; COMMENT_1: USE STEP-TIME = 0.2 SEC. COMMENT_2: EXPECT >>>> CTS/200MSEC ! LINENUM: 81.2 TARGNAME: HD172167-CALIB CONFIG: HRS OPMODE: ACQ/PEAKUP APERTURE: 0.25 SP_ELEMENT: MIRROR-A2 PARAM_1: SEARCH-SIZE=5 NUM_EXP: 1 TIME_PER_EXP: 10.0S FLUXNUM_1: 1 PRIORITY: 1 REQ_1: ONBOARD ACQ FOR 81.4-81.6; REQ_2: SEQ 81.2-81.6 NON-INT; COMMENT_1: STEP-TIME = 200 MSEC ! LINENUM: 81.4 TARGNAME: WAVE CONFIG: HRS OPMODE: ACCUM APERTURE: SC2 SP_ELEMENT: G200M WAVELENGTH: 1860.0 PARAM_1: STEP-PATT=3 NUM_EXP: 1 TIME_PER_EXP: 30.0S PRIORITY: 1 REQ_1: CALIB FOR 81.6 NO SLEW; ! LINENUM: 81.6 TARGNAME: HD172167-CALIB CONFIG: HRS OPMODE: ACCUM APERTURE: 0.25 SP_ELEMENT: G200M WAVELENGTH: 1860.0 PARAM_1: STEP-PATT=5, PARAM_2: FP-SPLIT=NO NUM_EXP: 2 TIME_PER_EXP: 27.2S S_TO_N: 15 FLUXNUM_1: 2 PRIORITY: 1 COMMENT_1: S/N IS FOR SUM OF 2 EXP'S ! END OF FILE