Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 5161 Report Date: 18-Jul-95:17:01 Version: ********** Check-in Date: ********** 1.Proposal Title: INTERSTELLAR CARBON AND OXYGEN - CYCLE 4 ------------------------------------------------------------------------------------ 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: 5 par: 0 ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 5161 PI: Prof. Michael Jura Proposal Title: INTERSTELLAR CARBON AND OXYGEN - CYCLE 4 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Michael Jura UC, LOS ANGELES USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. The observations will be in the echelle and G160M modes to acquire very high signal to noise measurements of weak, narrow interstellar lines. In particular, we will observe the weak, forbidden lines of O I and C II, and additional lines of CO. 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. ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). UCLA can provide VAX and SUN computers and extensive experience with reducing IUE data. We have an efficient departmental computer center for data reduction facilities. ------------------------------------------------------------------------------------ 13. This work is to observe interstellar C II, CO and O I toward 8 stars within 1 kpc of the sun. The goal is to measure accurate abundances, densities and to probe molecule formation and depletion theories. ------------------------------------------------------------------------------------ 11. Address Information Name: MICHAEL JURA Category: PI Institution: UC, LOS ANGELES 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 = 5161 [ 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 HD24398 ZETA B1 IB STAR RA=3H54M7.9S+/-0.1S, 2000 V=+20 1 V=2.85, -PER DEC=31D53'01"+/-1" ------------------------------------------------------------------------------------------------------------------------------------ 2 HD36861 O8 III STAR RA=5H35M8.25S+/-0.1S, 2000 V=+34 1 V=3.66, LAMBDA-ORI DEC=9D56'4"+/-1" ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5161 [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 1 HD24398 HRS ACQ 2.0 MIRROR-A2 SEARCH-SIZE=5 1 5.0S 1 1 CYCLE 4/1-15 BRIGHT=RETURN ONBOARD ACQ FOR 2 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 2 HD24398 HRS ACQ/ 0.25 MIRROR-A2 SEARCH-SIZE=5 1 5S 1 1 ONBOARD ACQ FOR 3- PEAKUP 15 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 3 HD24398 HRS ACCUM 0.25 G160M 1335.0 FP-SPLIT=STD 1 4.8M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 4 HD24398 HRS ACCUM 0.25 G160M 1346.0 FP-SPLIT=STD 1 4.8M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 5 HD24398 HRS ACCUM 0.25 G160M 1347.5 FP-SPLIT=STD 1 4.8M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 6 HD24398 HRS ACCUM 0.25 G160M 1349.0 FP-SPLIT=STD 1 4.8M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 7 HD24398 HRS ACCUM 0.25 G160M 1350.5 FP-SPLIT=STD 1 4.8M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 8 HD24398 HRS ACCUM 0.25 G160M 1474.5 FP-SPLIT=STD 1 7.2M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 9 HD24398 HRS ACCUM 0.25 G160M 1476.0 FP-SPLIT=STD 1 7.2M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 10 HD24398 HRS ACCUM 0.25 G160M 1477.5 FP-SPLIT=STD 1 7.2M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 11 HD24398 HRS ACCUM 0.25 ECH-B24 2323.5 FP-SPLIT=STD 1 7.2M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 12 HD24398 HRS ACCUM 0.25 ECH-B24 2324.0 FP-SPLIT=STD 1 7.2M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 13 HD24398 HRS ACCUM 0.25 ECH-B24 2324.5 FP-SPLIT=STD 1 7.2M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 14 HD24398 HRS ACCUM 0.25 ECH-B24 2325.0 FP-SPLIT=STD 1 7.2M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 15 HD24398 HRS ACCUM 0.25 ECH-B24 2325.5 FP-SPLIT=STD 1 7.2M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 16 HD36861 HRS ACQ 2.0 MIRROR-A2 SEARCH-SIZE=5 1 5.0S 1 1 CYCLE 4/16-30 BRIGHT=RETURN ONBOARD ACQ FOR 17 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5161 [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 17 HD36861 HRS ACQ/ 0.25 MIRROR-A2 SEARCH-SIZE=5 1 5S 1 1 ONBOARD ACQ FOR 18 PEAKUP -30 Comments: STEP-TIME=0.2S ------------------------------------------------------------------------------------------------------------------------------------ 18 HD36861 HRS ACCUM 0.25 G160M 1335.0 FP-SPLIT=STD 1 1.2M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 19 HD36861 HRS ACCUM 0.25 G160M 1346.0 FP-SPLIT=STD 1 1.2M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 20 HD36861 HRS ACCUM 0.25 G160M 1347.5 FP-SPLIT=STD 1 1.2M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 21 HD36861 HRS ACCUM 0.25 G160M 1349.0 FP-SPLIT=STD 1 1.2M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 22 HD36861 HRS ACCUM 0.25 G160M 1350.5 FP-SPLIT=STD 1 1.2M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 23 HD36861 HRS ACCUM 0.25 G160M 1474.5 FP-SPLIT=STD 1 2.4M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 24 HD36861 HRS ACCUM 0.25 G160M 1476.0 FP-SPLIT=STD 1 2.4M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 25 HD36861 HRS ACCUM 0.25 G160M 1477.5 FP-SPLIT=STD 1 2.4M 200 1 STEP-PATT=4 ------------------------------------------------------------------------------------------------------------------------------------ 26 HD36861 HRS ACCUM 0.25 ECH-B24 2323.5 FP-SPLIT=STD 1 2.88M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 27 HD36861 HRS ACCUM 0.25 ECH-B24 2324.0 FP-SPLIT=STD 1 2.88M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 28 HD36861 HRS ACCUM 0.25 ECH-B24 2324.5 FP-SPLIT=STD 1 2.88M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 29 HD36861 HRS ACCUM 0.25 ECH-B24 2325.0 FP-SPLIT=STD 1 2.88M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ 30 HD36861 HRS ACCUM 0.25 ECH-B24 2325.5 FP-SPLIT=STD 1 2.88M 200 1 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 5161 [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ ACQ/PEAKUP ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SEARCH-SIZE=5 BRIGHT=RETURN FP-SPLIT=STD STEP-PATT=4 STEP-PATT=6 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/HRS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 22.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category INTERSTELLAR MEDIUM ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ABSORPTION LINES ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 4/1-15; ONBOARD ACQ FOR 2 ONBOARD ACQ FOR 3-15 CYCLE 4/16-30; ONBOARD ACQ FOR 17 ONBOARD ACQ FOR 18-30 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR-A2 G160M ECH-B24 ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD24398 ZETA-PER HD36861 LAMBDA-ORI ------------------------------------------------------------------------------------------------------------------------------------