8197( 5) - 10/18/99 09:54 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 8197 Version: 5 Check-in Date: 18-Oct-1999 09:53:31 1.Proposal Title: Detection of ^11B/^10B: Part II ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle GO 8 ------------------------------------------------------------------------------------ 4. Investigators Contact? PI: Douglas Duncan University of Chicago CoI: Luisa Rebull University of Chicago N ------------------------------------------------------------------------------------ 5. Abstract HST observations (e.g. Duncan Etal 1992; 1997) have led to new theories of how cosmic rays (CRs) rich in CNO near massive stars form the light elements Li, Be, and B (e.g. Ramaty Etal 1996, 1998). The neutrino process in SN, which has never been experimentally verified, should also produce boron, but only ^11B, yielding a very different isotopic ratio than CR spallation. The boron isotope ratio, 11B/10B, can provide a definitive test of both these theories, but its galactic evolution is completely unknown. Our previous GHRS echelle observation of the moderately metal- poor (Fe/H=-1.0) star HD76932 placed a limit on its B isotope ratio, but not a definite value, because possible blending from an unknown spectrum line could not be ruled out (Rebull Etal 1998). The discovery of a halo star greatly depleted in B (Primas Etal 1998b) provides a wonderful opportunity to make the result definite. By comparing two similar (Fe/H ~ -1.6) stars, which have very different amounts of B, we can rule out or measure any blends. This should give a definite result for 11B/10B at metallcity Fe/H ~ -1.6, an epoch when massive star SN should have dominated galactic nucleosynthesis. Furthermore, we can then use our blending knowledge to reanalyze HD76932, getting a definite result for its 11B/10B ratio as well. ------------------------------------------------------------------------------------ 8197( 5) - 10/18/99 09:54 - [ 2] Observations Description ------------------------ All observations will be made with the STIS E230H echelle and near UV MAMA. As the text explains, exposure times are directly based on fluxes obtained in GHRS observations of the same stars, at relatively nearby wavelengths. The targets are bright enough that ACQ must be done with the OII filter. ACQ/PEAKUP must be done with a dispersive element. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Paper Products: YES Media: 8MM_HI Blocking Factor: 10 Ship To: PI_Address Ship Via: Email: ------------------------------------------------------------------------------------ 8197( 5) - 10/18/99 09:54 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 HD94028 STAR, F3-F9, HALO RA=10H 51M 28.125S +/- .05S, J2000 V = 8.22+/-0.03 DEC=20D 16' 39.0" +/- .15" B-V = .50+/-.02 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) J2000 -0.0186 -0.453 0.019 2 HD160617 STAR, F3-F9, HALO RA=17H 42M 49.325S +/- .05S, J2000 V = 8.70+/-0.03 DEC=-40D 19' 15.53" +/- .2" B-V = 0.46+/-0.02 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) J2000 -0.006 -0.403 0.009 8197( 5) - 10/18/99 09:54 - [ 4] Visit: 01 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HD94028 STIS/C ACQ F28X50O MIRROR ACQTYPE=POINT 1 1 S CD II ------------------------------------------------------------------------------------------------------------------------------------ 20 HD94028 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 30 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 1800 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 40 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 50 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 55 HD94028 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 60 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 2200 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 70 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 8197( 5) - 10/18/99 09:54 - [ 5] Visit: 02 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HD94028 STIS/C ACQ F28X50O MIRROR ACQTYPE=POINT 1 1 S CD II ------------------------------------------------------------------------------------------------------------------------------------ 20 HD94028 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 30 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 1800 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 40 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 50 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 55 HD94028 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 60 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 2200 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 70 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 8197( 5) - 10/18/99 09:54 - [ 6] Visit: 03 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HD94028 STIS/C ACQ F28X50O MIRROR ACQTYPE=POINT 1 1 S CD II ------------------------------------------------------------------------------------------------------------------------------------ 20 HD94028 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 30 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 1800 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 40 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 50 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 60 HD94028 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 8197( 5) - 10/18/99 09:54 - [ 7] Visit: 04 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HD160617 STIS/C ACQ F28X50O MIRROR ACQTYPE=POINT 1 1 S ONBOARD ACQ FOR 30 CD II ------------------------------------------------------------------------------------------------------------------------------------ 20 HD160617 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S ONBOARD ACQ FOR 30 CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 30 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 1800 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 40 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 50 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 55 HD160617 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S ONBOARD ACQ FOR 60 CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 60 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 2200 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 70 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 8197( 5) - 10/18/99 09:54 - [ 8] Visit: 05 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HD160617 STIS/C ACQ F28X50O MIRROR ACQTYPE=POINT 1 1 S ONBOARD ACQ FOR 30 CD II ------------------------------------------------------------------------------------------------------------------------------------ 20 HD160617 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S ONBOARD ACQ FOR 30 CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 30 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 1800 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 40 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 50 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 55 HD160617 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S ONBOARD ACQ FOR 60 CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 60 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 2200 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 70 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 8197( 5) - 10/18/99 09:54 - [ 9] Visit: 06 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HD160617 STIS/C ACQ F28X50O MIRROR ACQTYPE=POINT 1 1 S ONBOARD ACQ FOR 30 CD II ------------------------------------------------------------------------------------------------------------------------------------ 20 HD160617 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S ONBOARD ACQ FOR 30 CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 30 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 1800 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 40 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 50 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 55 HD160617 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S ONBOARD ACQ FOR 60 CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 60 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 2200 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 70 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 8197( 5) - 10/18/99 09:54 - [ 10] Visit: 54 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Repeat for Failed Visit 04 due to MAMA safing event Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HD160617 STIS/C ACQ F28X50O MIRROR ACQTYPE=POINT 1 1 S CD II ------------------------------------------------------------------------------------------------------------------------------------ 20 HD160617 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 30 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 1800 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 40 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 50 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 55 HD160617 STIS/C ACQ/PEA 0.2X0.0 G430L 4300 1 1.0 S CD K 9 ------------------------------------------------------------------------------------------------------------------------------------ 60 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 2200 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 70 HD160617 STIS/N ACCUM 0.2X0.0 E230H 2013 1 3000 S UV-MAM 9 A ------------------------------------------------------------------------------------------------------------------------------------ 8197( 5) - 10/18/99 09:54 - [ 11] Summary Form for Proposal 8197 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures F28X50OII 0.2X0.09 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ ACQ/PEAK ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ACQTYPE=POINT ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 30 ONBOARD ACQ FOR 60 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G430L E230H ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD94028 HD160617 ------------------------------------------------------------------------------------------------------------------------------------ Wavelengths 4300 2013 ------------------------------------------------------------------------------------------------------------------------------------