! File: 1069C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:00:31:34 coverpage: title_1: INTERSTELLAR BORON AND THE BORON ISOTOPIC RATIO title_2: :FUTURE-CYCLE OBSERVATIONS sci_cat: INTERSTELLAR MEDIUM sci_subcat: ABSORPTION LINES proposal_for: GTO/OS 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: INTERSTELLAR ABUNDANCES - BORON. ABUNDANCES AND keywords_2: NUCLEOSYNTHESIS _ BORON. hours_pri: 6.50 num_pri: 6 hrs: X pi_position: PROFESSOR ! end of coverpage abstract: line_1: Boron with Li and Be is synthesized by spallation reactions between Galactic line_2: cosmic rays and interstellar CNO nuclei. Theoretical predictions for line_3: nucleosynthesis are close to accounting for the observed standard or cosmic line_4: abundances of the trio. The 11B/10B ratio is one possible exception. line_6: Observations of solar-system material give 11B/10B = 4.025, but standard line_7: spallation calculations predict 11B/10B ~ 2.5. line_9: HRS echelle observations of the interstellar B II 1362 A resonance line provide line_10: opportunity to obtain a second measurement of the Boron isotopic ratio. The line_11: 1362 A line will be observed towards Kappa Ori and searched for towards 2 to 4 line_12: other stars. ! ! 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: All exposure involve the HRS with ECH-A at 1362.5 A. Total exposure time on a line_2: single star is to be broken into smaller pieces with grating shifts to improve line_3: S/N with detailed breakdown TBD. line_5: Cycle 1 (SV) - No exposures line_7: The primary target HD38771/Kappa Ori may be observed in cycles 2 or 3 after SV line_8: tests of HRS have been published. line_10: Other targets may be observed after the HD38771 data has been digested, say two line_11: months. ! question: 4 section: 1 line_1: Interstellar Boron is not detectable from the ground because the resonance line_2: lines of the atom and ions are in the ultraviolet. The interstellar B and line_3: expecially the B isotopic ratio are not predictable from the scanty imformation line_4: available on interstellar Li and Be, which are also formed by spallation line_5: Processes. ! question: 6 section: 1 line_1: This program calls for high S/N spectra. I request that it not be schedule line_2: until pretinent calibration data for HRS obtained in SV tests have been line_3: digested by the STScI. Based on my experience with ground-based detectors, I line_4: suspect that a bright star will have to be observed in order to achieve an line_5: adequate calibration of the pixel-pixel variations: flat-fielding using a line_6: monocromatic lamp is unlikely to yield adequate accuracy. In the event that line_7: assigned to stars other than Kappa Ori. Note too that special techniques may be line_8: necessary to ensure High S/N: e.g., positioning the line on the optimum portion line_9: of the photocathode. It seems impossible to describe their requests now, and so line_10: I have just inserted a comment on the exposure sheet. ! question: 7 section: 1 line_1: The spectrum as reduced by the standard STScI software will be analysed at line_2: the University of Texas. ! question: 10 section: 1 line_1: University and Departmental computing facilities. ! question: 13 section: 1 line_1: HRS echell spectra of the intersetellar B II 1362 A line towards Kappa Ori and line_2: 2 to 4 other stars will provide the isotopic 11B/10B ratio, the first line_3: extra-solar-system measurement and a check on the spallation hypothesi for the line_4: production of the light elements Li, Be and B. ! !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: 512-471-4461 telex: 910-874-1351 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: HD38771 name_2: KAPPA-ORI descr_1: OB STAR BEHIND INTERSTELLAR DIFFUSE CLOUD pos_1: RA = 05H 45M 23.01S +/- 0.01S, pos_2: DEC = -9D 41' 09.5" +/-0.5" equinox: 1950 pm_or_par: N rv_or_z: V=+20 fluxnum_1: 1 fluxval_1: V=2.04, TYPE = B0.5IE fluxnum_2: 2 fluxval_2: F-CONT(1360)=1.5 +/- 0.3 E-8 ! targnum: 2 name_1: HD37128 name_2: EPS-ORI descr_1: OB STAR BEHIND INTERSTELLAR DIFFUSE CLOUD pos_1: RA = 05H 33M 40.48S +/- 0.01S, pos_2: DEC = 01D 13' 56.3" +/- .5" equinox: 1950 pm_or_par: N rv_or_z: V=+25 fluxnum_1: 1 fluxval_1: V=1.70, TYPE = B0IA fluxnum_2: 2 fluxval_2: F-CONT(1360)=2.4 +/- 0.5 E-8 ! targnum: 3 name_1: HD36486 name_2: DELTA-ORI descr_1: OB STAR BEHIND INTERSTELLAR DIFFUSE CLOUD pos_1: RA = 05H 29M 27.02S +/- 0.01S, pos_2: DEC = -0D 20' 04.4" +/- .5" equinox: 1950 pm_or_par: N rv_or_z: V=+20 fluxnum_1: 1 fluxval_1: V=2.20, TYPE = 09.5 II fluxnum_2: 2 fluxval_2: F-CONT(1360)=2.0 +/- 0.2 E-8 ! targnum: 4 name_1: HD143018 name_2: PI-SCO descr_1: OB STAR BEHIND INTERSTELLAR DIFFUSE CLOUD pos_1: RA = 15H 55M 49.30S +/- 0.01S, pos_2: DEC = -25D 58' 18.1" +/- .5" equinox: 1950 pm_or_par: Y pos_epoch_bj: B pos_epoch_yr: 1950.00 ra_pm_val: -0.000600 ra_pm_unct: 0.000133 dec_pm_val: -0.0270 dec_pm_unct: 0.0020 an_prlx_unct: 0.0030 rv_or_z: V=-9 fluxnum_1: 1 fluxval_1: V=2.88, TYPE = B7 IV fluxnum_2: 2 fluxval_2: F-CONT(1360)=1.0 +/- 0.2 E-8 ! targnum: 5 name_1: HD144217A name_2: BETA-1-SCO descr_1: OB STAR BEHIND INTERSTELLAR DIFFUSE CLOUD pos_1: RA = 16H 02M 31.51S +/- 0.01S, pos_2: DEC = -19D 40' 12.5" +/- .5" equinox: 1950 pm_or_par: Y pos_epoch_bj: B pos_epoch_yr: 1950.00 ra_pm_val: -0.000380 ra_pm_unct: 0.000133 dec_pm_val: -0.0210 dec_pm_unct: 0.0020 an_prlx_unct: 0.0030 rv_or_z: V=-9 fluxnum_1: 1 fluxval_1: V=2.63, TYPE = B0.5V fluxnum_2: 2 fluxval_2: F-CONT(1360)=1.0 +/- 0.2 E-8 ! targnum: 6 name_1: HD149438 name_2: TAU-SCO descr_1: OB STAR BEHIND INTERSTELLAR DIFFUSE CLOUD pos_1: RA = 16H 32M 45.91S +/- 0.01S, pos_2: DEC = -28D 06' 50.6" +/- .5" equinox: 1950 pm_or_par: Y pos_epoch_bj: B pos_epoch_yr: 1950.00 ra_pm_val: -0.000533 ra_pm_unct: 0.000133 dec_pm_val: -0.0250 dec_pm_unct: 0.0020 an_prlx_val: 0.0200 an_prlx_unct: 0.0030 rv_or_z: V=-9 fluxnum_1: 1 fluxval_1: V=2.82, TYPE = B0V fluxnum_2: 2 fluxval_2: F-CONT(1360)=1.7 +/- 0.3 E-8 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: HD38771 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A1 num_exp: 1 time_per_exp: 5S s_to_n: 10 fluxnum_1: 1 priority: 2 param_1: FAINT=1300.0 param_2: SEARCH-SIZE=5 req_1: ONBOARD ACQ FOR 2; CYCLE 2 / 1-4; ! linenum: 2.000 targname: HD38771 config: HRS opmode: ACCUM aperture: 0.25 sp_element: ECH-A wavelength: 1360.28 num_exp: 4 time_per_exp: 60M s_to_n: 1000 s_to_n_time: 4H fluxnum_1: 2 priority: 2 param_1: STEP-PATT=7, FP-SPLIT=STD comment_1: HIGH S/N IN FINAL SUMMED SPECTRUM IS comment_2: ESSENTIAL. ALLOCATION OF 4H EXPOSURE comment_3: INTO SMALLER INTERVALS WITH CAROUSEL comment_4: SHIFTS MAY BE ADVISABLE AFTER SV. ! linenum: 3.000 targname: HD143018 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A1 num_exp: 1 time_per_exp: 5S s_to_n: 10 fluxnum_1: 1 priority: 2 param_1: FAINT=2100.0 param_2: SEARCH-SIZE=5 req_1: ONBOARD ACQ FOR 4; req_2: CYCLE 9; req_3: COND IF TAC OK ! linenum: 4.000 targname: HD143018 config: HRS opmode: ACCUM aperture: 0.25 sp_element: ECH-A wavelength: 1360.28 num_exp: 4 time_per_exp: 15M s_to_n: 500 s_to_n_time: 1H fluxnum_1: 2 priority: 2 param_1: STEP-PATT=7, FP-SPLIT=STD req_1: CYCLE 9; req_2: COND IF TAC OK comment_1: HIGH S/N NEEDED. ALLOCATION OF comment_2: EXPOSURE INTO MORE THAN 4 INTERVALS comment_3: MAY BE DESIRABLE. ! linenum: 5.000 targname: HD144217A config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A1 num_exp: 1 time_per_exp: 5S s_to_n: 10 fluxnum_1: 1 priority: 3 param_1: FAINT=340.0 param_2: SEARCH-SIZE=5 req_1: COND ON 1-4 IF BORON DETECTED; req_2: SELECT 1 OF 5-6 OR 7-8 OR 9-10 OR 11-12; req_3: ONBOARD ACQ FOR 6; CYCLE 3 / 5-12; ! linenum: 6.000 targname: HD144217A config: HRS opmode: ACCUM aperture: 0.25 sp_element: ECH-A wavelength: 1360.28 num_exp: 4 time_per_exp: 15M s_to_n: 500 s_to_n_time: 1H fluxnum_1: 2 priority: 3 param_1: STEP-PATT=7, FP-SPLIT=STD req_1: COND ON 1-4 IF BORON DETECTED; req_2: SELECT 1 OF 5-6 OR 7-8 OR 9-10 OR 11-12; ! linenum: 7.000 targname: HD37128 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A1 num_exp: 1 time_per_exp: 5S s_to_n: 10 fluxnum_1: 1 priority: 3 param_1: FAINT=2100.0 param_2: SEARCH-SIZE=5 req_1: COND ON 1-4 IF BORON DETECTED; req_2: SELECT 1 OF 5-6 OR 7-8 OR 9-10 OR 11-12; req_3: ONBOARD ACQ FOR 8 ! linenum: 8.000 targname: HD37128 config: HRS opmode: ACCUM aperture: 0.25 sp_element: ECH-A wavelength: 1360.28 num_exp: 4 time_per_exp: 15M s_to_n: 1000 s_to_n_time: 1H fluxnum_1: 2 priority: 3 param_1: STEP-PATT=7, FP-SPLIT=STD req_1: COND ON 1-4 IF BORON DETECTED; req_2: SELECT 1 OF 5-6 OR 7-8 OR 9-10 OR 11-12; ! linenum: 9.000 targname: HD36486 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A1 num_exp: 1 time_per_exp: 5S s_to_n: 10 fluxnum_1: 1 priority: 3 param_1: FAINT=2200.0 param_2: SEARCH-SIZE=5 req_1: COND ON 1-4 IF BORON DETECTED; req_2: SELECT 1 OF 5-6 OR 7-8 OR 9-10 OR 11-12; req_3: ONBOARD ACQ FOR 10 ! linenum: 10.000 targname: HD36486 config: HRS opmode: ACCUM aperture: 0.25 sp_element: ECH-A wavelength: 1360.28 num_exp: 4 time_per_exp: 15M s_to_n: 500 s_to_n_time: 1H fluxnum_1: 2 priority: 3 param_1: STEP-PATT=7, FP-SPLIT=STD req_1: COND ON 1-4 IF BORON DETECTED; req_2: SELECT 1 OF 5-6 OR 7-8 OR 9-10 OR 11-12; ! linenum: 11.000 targname: HD149438 config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-A1 num_exp: 1 time_per_exp: 5S s_to_n: 10 fluxnum_1: 1 priority: 3 param_1: FAINT=2800.0 param_2: SEARCH-SIZE=5 req_1: COND ON 1-4 IF BORON DETECTED; req_2: SELECT 1 OF 5-6 OR 7-8 OR 9-10 OR 11-12; req_3: ONBOARD ACQ FOR 12 ! linenum: 12.000 targname: HD149438 config: HRS opmode: ACCUM aperture: 0.25 sp_element: ECH-A wavelength: 1360.28 num_exp: 4 time_per_exp: 15M s_to_n: 500 s_to_n_time: 1H fluxnum_1: 2 priority: 3 param_1: STEP-PATT=7, FP-SPLIT=STD req_1: COND ON 1-4 IF BORON DETECTED; req_2: SELECT 1 OF 5-6 OR 7-8 OR 9-10 OR 11-12; ! ! end of exposure logsheet ! No scan data records found