! File: 4840C.PROP ! Database: PEPDB ! Date: 23-FEB-1994:05:42:17 coverpage: title_1: BORON IN MAIN SEQUENCE STARS-CYC3HIGH sci_cat: STELLAR ASTROPHYSICS sci_subcat: HOT STARS proposal_for: GTO/OS cont_id: 1064 pi_title: PROF. pi_fname: DAVID pi_mi: L pi_lname: LAMBERT pi_inst: TEXAS, UNIVERSITY OF pi_country: USA pi_phone: 512-471-7438 keywords_1: NUCLEOSYNTHESIS - BORON - keywords_2: PROCYON AND HIGH GALACTIC LATITUDE B TYPE STARS hours_pri: 8.25 num_pri: 4 hrs: Y pi_position: PROFESSOR ! end of coverpage abstract: line_1: Boron abundances have been obtained for a sample of Pop. I line_2: and Pop. II stars from GHRS grating/echelle spectra line_3: of the BI resonance lines at 2497 A. line_4: Stars to be observed in Cycle 3 include Procyon and line_5: high galactic latitude early type stars. Boron will line_6: A B I line at 2089A will be observed in Procyon in order line_7: to measure the 11B/10B ratio. In the high latitude B stars, line_8: Boron will be sought from the B II doublet at 1362A. line_9: A second region at 1305A will provide profiles of SiIII line_10: lines; a SiIII line is blended with the B II line. line_11: Boron will provide a new clue to origins of these line_12: young solar-metallicity massive stars in the halo. ! ! end of abstract general_form_proposers: lname: LAMBERT fname: DAVID mi: L inst: TEXAS, UNIVERSITY OF country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: The HRS with ECH-B and the SSA is used to obtain S/N ~ 200 line_2: exposures of Procyon at 2089A for a B I doublet. line_3: The HRS is used with G160M and the SSA to obtain S/N ~ 100 line_4: exposures at the B II resonance line at lambda(vac) = 1362. line_5: and at 1305A for Si III comparison lines. ! question: 4 section: 1 line_1: Boron is not detectable in stellar spectra from the visible to the infrared. line_2: The ultraviolet resonance lines of B I and B II are the sole spectroscopic line_3: indicator of B in stellar atmospheres. Very high S/N near-infrared spectra line_4: might provide excited B I lines in stars with a normal B abundance but not in line_5: the stars on this observing program. ! question: 7 section: 1 line_1: The spectra as reduced by the standard STScI software will be analyzed at the line_2: University of Texas using computer codes already in use. ! question: 10 section: 1 line_1: University and Departmental computing facilities. ! question: 13 section: 1 line_1: HRS spectra of the 2089A B I lines in Procyon will provide line_2: the B isotopic ratio. line_3: HRS spectra of the B II 1362A resonance line will provide the boron abundance line_4: in a few high latitude early type stars. ! !end of general form text general_form_address: lname: LAMBERT fname: DAVID mi: L. title: PROF. category: PI inst: UNIVERSITY OF TEXAS addr_1: ASTRONOMY DEPARTMENT addr_2: RLM 15.308 city: AUSTIN state: TX zip: 78712 country: USA phone: 512-471-7438 telex: 910-874-1351 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: HD220787 descr_1: A, 114 pos_1: RA = 23H 26M 45.495S +/- 0.1S, pos_2: DEC = -11D 01' 56.22" +/-0.2", pos_3: PLATE-ID = 00WQ equinox: 2000 pm_or_par: N rv_or_z: V=0 comment_1: POSITION SUBMITTED TO GASP comment_2: FOR CHECKING fluxnum_1: 1 fluxval_1: V=8.3, B-V=-0.1, TYPE=B3III fluxnum_2: 1 fluxval_2: E(B-V)=0.05 ! targnum: 3 name_1: HD217505 descr_1: A, 110 pos_1: RA = 23H 02M 02.517S +/- 0.1S, pos_2: DEC = -59D 27' 46.32" +/-0.2", pos_3: PLATE-ID = 00MW equinox: 2000 pm_or_par: N rv_or_z: V=0 comment_1: POSITION SUBMITTED TO GASP comment_2: FOR CHECKING fluxnum_1: 1 fluxval_1: V=9.15, TYPE=B2III, E(B-V)=0.05 ! targnum: 6 name_1: BD-15D115 descr_1: A,110 pos_1: RA = 00H 38M 20.239S +/- 0.3S, pos_2: DEC = -14D 59' 54.14" +/-0.2", pos_3: PLATE-ID = 024L equinox: 2000 pm_or_par: N rv_or_z: V=94 comment_1: POSITION SUBMITTED TO GASP comment_2: FOR CHECKING fluxnum_1: 1 fluxval_1: V=10.9, TYPE=B2V, E(B-V)=0.05 ! targnum: 7 name_1: HD61421 name_2: ALPHA-CMI descr_1: A,134 pos_1: RA = 7H 39M 19.48S +/- 0.01S, pos_2: DEC = +05D 13' 49.5" +/- 0.2", pos_3: PLATE-ID = 02V4 equinox: 2000 pm_or_par: Y pos_epoch_bj: B pos_epoch_yr: 1950.00 ra_pm_val: -0.047263 dec_pm_val: -1.0290 an_prlx_val: 0.2920 an_prlx_unct: 0.0030 rv_or_z: V=-3 fluxnum_1: 1 fluxval_1: V=0.34, TYPE = F5IV fluxnum_2: 2 fluxval_2: F-CONT(2500)=5.0 +/-1.0 E-10 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 sequence_1: DEFINE sequence_2: B2-ACQ targname: # config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 5S s_to_n: 10 fluxnum_1: 1 priority: # param_1: SEARCH-SIZE=5, param_2: BRIGHT=RETURN ! linenum: 1.400 sequence_1: DEFINE sequence_2: BORON1 targname: # config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1362.0 num_exp: 1 time_per_exp: 15M s_to_n: 100 fluxnum_1: 1 priority: # param_1: FP-SPLIT=STD, param_2: STEP-PATT=5 ! linenum: 2.000 sequence_1: DEFINE sequence_2: BORON2 targname: # config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1362.0 num_exp: 1 time_per_exp: 15M s_to_n: 100 fluxnum_1: 1 priority: # param_1: FP-SPLIT=STD, param_2: STEP-PATT=5 ! linenum: 3.000 sequence_1: DEFINE sequence_2: BORON2 targname: # config: HRS opmode: ACCUM aperture: 0.25 sp_element: G160M wavelength: 1305.0 num_exp: 1 time_per_exp: 10M s_to_n: 50 fluxnum_1: 1 priority: # param_1: FP-SPLIT=STD, param_2: STEP-PATT=5 ! linenum: 4.000 sequence_1: USE sequence_2: B2-ACQ targname: HD220787 time_per_exp: X5 priority: 1 req_1: ONBOARD ACQ FOR 5; CYCLE 3 / 4-5 ! linenum: 5.000 sequence_1: USE sequence_2: BORON2 targname: HD220787 time_per_exp: X1 priority: 1 req_1: CYCLE 3 ! linenum: 6.000 sequence_1: USE sequence_2: B2-ACQ targname: HD217505 time_per_exp: X8 priority: 1 req_1: ONBOARD ACQ FOR 7; CYCLE 3 / 6-7 ! linenum: 7.000 sequence_1: USE sequence_2: BORON1 targname: HD217505 time_per_exp: X2 priority: 1 req_1: CYCLE 3 ! linenum: 14.000 sequence_1: USE sequence_2: B2-ACQ targname: BD-15D115 time_per_exp: X15 priority: 1 req_1: ONBOARD ACQ FOR 15; CYCLE 3 / 14-15 ! linenum: 15.000 sequence_1: USE sequence_2: BORON1 targname: BD-15D115 time_per_exp: X9 priority: 1 req_1: CYCLE 3 ! linenum: 16.000 sequence_1: USE sequence_2: B2-ACQ targname: HD61421 time_per_exp: X1 priority: 1 req_1: ONBOARD ACQ FOR 16.10-18; CYCLE 3 / 16-18 ! linenum: 16.100 targname: HD61421 config: HRS opmode: ACQ/PEAKUP aperture: 0.25 sp_element: MIRROR-A2 num_exp: 1 time_per_exp: 40.0S s_to_n: 10 fluxnum_1: 1 priority: 1 comment_1: STEP-TIME = 1.6S ! linenum: 17.000 targname: HD61421 config: HRS opmode: ACCUM aperture: 0.25 sp_element: ECH-B wavelength: 2089.5 num_exp: 1 time_per_exp: 15M s_to_n: 120 fluxnum_1: 2 priority: 1 param_1: FP-SPLIT = STD, req_1: CYCLE 3 ! linenum: 18.000 targname: HD61421 config: HRS opmode: ACCUM aperture: 0.25 sp_element: ECH-B wavelength: 2090.0 num_exp: 1 time_per_exp: 15M s_to_n: 120 fluxnum_1: 2 priority: 1 param_1: FP-SPLIT = STD, req_1: CYCLE 3 ! ! end of exposure logsheet ! No scan data records found