Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 1168c Report Date: 09-May-96:16:15 Version: ********** Check-in Date: ********** 1.Proposal Title: INTERSTELLAR CARBON AND OXYGEN CYCLE 2 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID INTERSTELLAR MEDIUM GTO/HRS 1168 Sub Category ABSORPTION LINES ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Prof. Michael Jura UC, LOS ANGELES USA (213)825-4302 PROFESSOR OF ASTRONO ------------------------------------------------------------------------------------ 7. Abstract This work is to observe interstellar oxygen and carbon within 1 kpc of the sun.The goal is to measure the gas phase abundaces of these species, the densities and temperatures within the clouds, the amount of CO, the electron densities, and the mean intensity of the ultraviolet radiation field. These numbers will greatly improve our understanding of the interstellar medium. ------------------------------------------------------------------------------------ 8. Scientific Key Words: INTERSTELLAR ABUNDANCES ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 22.00 par: 0 10. Num targs pri: 16 par: 0 ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 1168c PI: Prof. Michael Jura Proposal Title: INTERSTELLAR CARBON AND OXYGEN CYCLE 2 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Michael Jura UC, LOS ANGELES USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. The observations will be in the echelle mode to acquire very high signal to noise measurements of weak, narrow interstellar lines. In particular, I will observe the weak, forbidden lines of O I and C II, and additional lines of CO and C I. The C I lines are important because they will provide information on the electron density, the hydrogen density, the mean intensity of the ultraviolet radiation field and the temperature of the gas. Very high signal to noise ratios are required because the lines are weak and because there are several clouds in essentially every line of sight. ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. Ultraviolet observations are impossible from the ground. The previous Copernicus and IUE observations had inadequate spectral resolution and signal to noise. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Data reduction will be performed using the HRS software at Goddard or, if possible, the software will be transported to UCLA. ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). UCLA can provide a VAX computer and extensive experience with reducing IUE data. We have a small but efficient departmental computer center for data reduction facilities. ------------------------------------------------------------------------------------ 13. This work is to observe interstellar C I, C II, CO and O I toward 16 stars within 1 kpc of the sun. The goal is to measure accurate abundances, densities, temperatures and electron densities. ------------------------------------------------------------------------------------ 11. Address Information Name: MICHAEL JURA Category: PI Institution: UCLA Address: ASTRONOMY DEPARTMENT UCLA City: LOS ANGELES State: CA Zip Code: 90024 Country: USA Telephone: 213-825-4302 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 1168c [ 3] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial |Acqui|FLX| Flux data No | Name | Description | Position |Eqnx | Vel. |Prblm|REF| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 1 HD37043 IOTA A, 105 RA=5H35M25.9S+/-0.1S, 2000 V=+22 1 V=2.77, -ORI DEC=-5D54'36"+/-1" ------------------------------------------------------------------------------------------------------------------------------------ 2 HD38771 A, 113 RA=5H47M45.3S+/-0.1S, 2000 V=+21 1 V=2.06, KAPPA-ORI DEC=-9D40'11"+/-1" ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1168c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 HD37043 HRS ACQ 2.0 MIRROR-A2 SEARCH-SIZE=5 1 5.0S 1 1 CYCLE 2/10-76 BRIGHT=RETURN ONBOARD ACQ FOR 11 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 11 HD37043 HRS ACQ/ 2.0 MIRROR-A2 1 20.4S 1 1 ONBOARD ACQ FOR 21 PEAKUP -56 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 21 HD37043 HRS ACCUM 0.25 ECH-B24 2323.3 FP-SPLIT=STD 1 0.96M 100 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 22 HD37043 HRS ACCUM 0.25 ECH-B24 2323.5 FP-SPLIT=STD 1 0.96M 100 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 23 HD37043 HRS ACCUM 0.25 ECH-B24 2323.8 FP-SPLIT=STD 1 0.96M 100 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 24 HD37043 HRS ACCUM 0.25 ECH-B24 2324.2 FP-SPLIT=STD 1 0.96M 100 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 25 HD37043 HRS ACCUM 0.25 ECH-B24 2324.5 FP-SPLIT=STD 1 0.96M 100 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 26 HD37043 HRS ACCUM 0.25 ECH-B24 2324.7 FP-SPLIT=STD 1 0.96M 100 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 31 HD37043 HRS ACCUM 0.25 G160M 1335.0 FP-SPLIT=STD 1 1.92M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 51 HD37043 HRS ACCUM 0.25 G160M 1353.1 FP-SPLIT=STD 1 3.84M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 52 HD37043 HRS ACCUM 0.25 G160M 1353.3 FP-SPLIT=STD 1 3.84M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 53 HD37043 HRS ACCUM 0.25 G160M 1353.6 FP-SPLIT=STD 1 3.84M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 54 HD37043 HRS ACCUM 0.25 G160M 1354.0 FP-SPLIT=STD 1 3.84M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 55 HD37043 HRS ACCUM 0.25 G160M 1354.3 FP-SPLIT=STD 1 3.84M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 56 HD37043 HRS ACCUM 0.25 G160M 1354.5 FP-SPLIT=STD 1 3.84M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 59 HD37043 HRS ACQ 2.0 MIRROR-A2 SEARCH-SIZE=5 1 5.0S 1 1 CYCLE 2/10-76 BRIGHT=RETURN ONBOARD ACQ FOR 60 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1168c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 60 HD37043 HRS ACQ/ 2.0 MIRROR-A2 1 20.4S 1 1 ONBOARD ACQ FOR 61 PEAKUP -76 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 61 HD37043 HRS ACCUM 0.25 G160M 1474.6 FP-SPLIT=STD 1 1.92M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 62 HD37043 HRS ACCUM 0.25 G160M 1474.8 FP-SPLIT=STD 1 1.92M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 63 HD37043 HRS ACCUM 0.25 G160M 1475.1 FP-SPLIT=STD 1 1.92M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 64 HD37043 HRS ACCUM 0.25 G160M 1475.3 FP-SPLIT=STD 1 1.92M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 65 HD37043 HRS ACCUM 0.25 G160M 1475.6 FP-SPLIT=STD 1 1.92M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 66 HD37043 HRS ACCUM 0.25 G160M 1476.0 FP-SPLIT=STD 1 1.92M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 71 HD37043 HRS ACCUM 0.25 G160M 1506.6 FP-SPLIT=STD 1 2.88M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 72 HD37043 HRS ACCUM 0.25 G160M 1506.8 FP-SPLIT=STD 1 2.88M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 73 HD37043 HRS ACCUM 0.25 G160M 1507.1 FP-SPLIT=STD 1 2.88M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 74 HD37043 HRS ACCUM 0.25 G160M 1507.3 FP-SPLIT=STD 1 2.88M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 75 HD37043 HRS ACCUM 0.25 G160M 1507.6 FP-SPLIT=STD 1 2.88M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 76 HD37043 HRS ACCUM 0.25 G160M 1508.0 FP-SPLIT=STD 1 2.88M 250 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 110 HD38771 HRS ACQ 2.0 MIRROR-A2 SEARCH-SIZE=5 1 5.0S 1 2 CYCLE 2/110-176 BRIGHT=RETURN ONBOARD ACQ FOR 111 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 111 HD38771 HRS ACQ/ 2.0 MIRROR-A2 1 20.4S 1 2 ONBOARD ACQ FOR PEAKUP 121-152 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 121 HD38771 HRS ACCUM 0.25 ECH-B24 2323.3 FP-SPLIT=STD 1 0.96M 100 2 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1168c [ 6] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 122 HD38771 HRS ACCUM 0.25 ECH-B24 2323.5 FP-SPLIT=STD 1 0.96M 100 2 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 123 HD38771 HRS ACCUM 0.25 ECH-B24 2323.8 FP-SPLIT=STD 1 0.96M 100 2 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 124 HD38771 HRS ACCUM 0.25 ECH-B24 2324.2 FP-SPLIT=STD 1 0.96M 100 2 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 125 HD38771 HRS ACCUM 0.25 ECH-B24 2324.5 FP-SPLIT=STD 1 0.96M 100 2 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 126 HD38771 HRS ACCUM 0.25 ECH-B24 2324.7 FP-SPLIT=STD 1 0.96M 100 2 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 131 HD38771 HRS ACCUM 0.25 G160M 1335.0 FP-SPLIT=STD 1 1.92M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 151 HD38771 HRS ACCUM 0.25 G160M 1353.6 FP-SPLIT=STD 1 3.84M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 152 HD38771 HRS ACCUM 0.25 G160M 1354.0 FP-SPLIT=STD 1 3.84M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 159 HD38771 HRS ACQ 2.0 MIRROR-A2 SEARCH-SIZE=5 1 5.0S 1 2 CYCLE 2/110-176 BRIGHT=RETURN ONBOARD ACQ FOR 160 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 160 HD38771 HRS ACQ/ 2.0 MIRROR-A2 1 20.4S 1 2 ONBOARD ACQ FOR PEAKUP 161-176 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 161 HD38771 HRS ACCUM 0.25 G160M 1474.6 FP-SPLIT=STD 1 1.92M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 162 HD38771 HRS ACCUM 0.25 G160M 1474.8 FP-SPLIT=STD 1 1.92M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 163 HD38771 HRS ACCUM 0.25 G160M 1475.1 FP-SPLIT=STD 1 1.92M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 164 HD38771 HRS ACCUM 0.25 G160M 1475.3 FP-SPLIT=STD 1 1.92M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 165 HD38771 HRS ACCUM 0.25 G160M 1475.6 FP-SPLIT=STD 1 1.92M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 166 HD38771 HRS ACCUM 0.25 G160M 1476.0 FP-SPLIT=STD 1 1.92M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1168c [ 7] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 171 HD38771 HRS ACCUM 0.25 G160M 1506.6 FP-SPLIT=STD 1 2.88M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 172 HD38771 HRS ACCUM 0.25 G160M 1506.8 FP-SPLIT=STD 1 2.88M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 173 HD38771 HRS ACCUM 0.25 G160M 1507.1 FP-SPLIT=STD 1 2.88M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 174 HD38771 HRS ACCUM 0.25 G160M 1507.3 FP-SPLIT=STD 1 2.88M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 175 HD38771 HRS ACCUM 0.25 G160M 1507.6 FP-SPLIT=STD 1 2.88M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 176 HD38771 HRS ACCUM 0.25 G160M 1508.0 FP-SPLIT=STD 1 2.88M 250 2 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 1168c [ 8] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ ACQ/PEAKUP ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SEARCH-SIZE=5 BRIGHT=RETURN FP-SPLIT=STD STEP-PATT=6 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/HRS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 22.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category INTERSTELLAR MEDIUM ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ABSORPTION LINES ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 2/10-76; ONBOARD ACQ FOR 11 ONBOARD ACQ FOR 21-56 ONBOARD ACQ FOR 60 ONBOARD ACQ FOR 61-76 CYCLE 2/110-176; ONBOARD ACQ FOR 111 ONBOARD ACQ FOR 121-152 ONBOARD ACQ FOR 160 ONBOARD ACQ FOR 161-176 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR-A2 ECH-B24 G160M ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD37043 IOTA-ORI HD38771 KAPPA-ORI ------------------------------------------------------------------------------------------------------------------------------------