Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4805c Report Date: 09-May-96:19:59 Version: ********** Check-in Date: ********** 1.Proposal Title: THE ULTRAVIOLET EMISSION SPECTRA OF AN HII REGION ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID INTERSTELLAR MEDIUM GO/AM Sub Category HII REGION ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Ms Nancy K Cox NIL USA 415 826 2217 AMATEUR ------------------------------------------------------------------------------------ 7. Abstract ONE OF THE ADVANTAGES OF THE NEW INSTRUMENTS SUCH AS THE HUBBLE SPACE TELESCOPE IS TO BE ABLE TO STUDY THE UNIVERSE AT WAVELENGTHS PREVIOUSLY UNOBSERVABLE FROM UNDER THE EARTH'S ATMOSPHERE. ONE THE THESE IS THE UV REGION OF THE STECTRUM. USING HST'S FOS, I WOULD LIKE TO TAKE A UV SPETRUM OF AN HII REGION, M8, THE LAGOON NEBULA (HOURGLASS REGION). HII REGIONS ARE AREAS OF STARBIRTH AND ARE SAMPLES OF THE INTERSTELLAR MATTER OUT OF WHICH STARS ARE BEING BORN. HOT, YOUNG O STARS WHICH RADIATE STRONGLY IN THE UV ARE EMBEDDED IN M8. MANY EMSSION LINES ARE EXPECTED BETWEEN 912-3300 ANGTROMS. USING WF/PC, AN IMAGE OF THE HOURGALSS WILL BE TAKEN LOOKING FOR FILIMENTARY STRUCTURE AND NEW BORN STARS. ------------------------------------------------------------------------------------ 8. Scientific Key Words: EMISSION ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 2.00 par: 0 10. Num targs pri: 3 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4805c PI: Ms Nancy K Cox Proposal Title: THE ULTRAVIOLET EMISSION SPECTRA OF AN HII REGION ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Nancy Cox NIL USA ------------------------------------------------------------------------------------ 3. Description of proposed observations. Target acquisition will be a two stage peakup: a 1x3 into the 4.3 aperture of the FOS followed by a 2x6 into the 1.0 aper. 3 spectra of the nothern lobe of the hourglass in M8 will be done at 1550, 1900, and 2800 angstroms. 2 PC images will be taken with the F656N and the F673N filters. ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. Previous IUE spectra did not resolve emission lines to any great degree. HST's capability will resolve many interesting spectral features, most notably CIV, CIII. PC imaging will certainly reveal structure never before seen. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. -2 one week visits to STScI for data analysis -offer from IUE for spectra analysis -R Dufour (Texas) offer of assistance in analysis of spectra. ------------------------------------------------------------------------------------ 11. Address Information Name: NANCY K COX Category: PI Institution: nil Address: 1065 S VAN NESS AVE #305 City: SAN FRANCISCO State: CA Zip Code: 94110 Country: USA Telephone: 415 826 2217 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 4805c [ 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 H36 A,104 RA = 18H 03M 40.36S +/- J2000 1 V=10.0 +/- 0.5 0.01S, 1 TYPE = O7 DEC = -24D 22' 42.80" +/- 1 E(B-V)=0.89 +/- 0.03 0.01" ------------------------------------------------------------------------------------------------------------------------------------ 2 LOBE-N G,503 RA-OFF = +1.17S +/- 0.01S, J2000 1 SURF(V)=16.0+/-1.0 HOURGLASS- DEC-OFF = +1.37" +/- 0.01S, 2 F-CONT(1500)=4.2 +/- .2 E-13 NORTH REGION, 2 F-CONT(1900)=1.8 +/- .2 E-13 FROM 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 LOBE-S G,503 RA-OFF = +0.95S +/- 0.01S, J2000 1 SURF(V)=16.0+/-1.0 HOURGLASS- DEC-OFF = -12.46" +/- .01", 2 F-CONT(1500)=4.2 +/- .2 E-13 SOUTH REGION, 2 F-CONT(1900)=1.8 +/- .2 E-13 FROM 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 M8 HOURGLASS G,503 RA-OFF = +1.05S +/- 0.01S, J2000 1 SURF(V)=16.0+/-1.0 DEC-OFF = -5.55" +/- .01", 2 F-CONT(1500)=4.2+/-0.2E-13 REGION, 2 F-CONT(1900)=1.8+/-0.2E-13 FROM 1 Comments: TARGET IS CENTRE OF HOURGLASS ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4805c [ 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 H36 FOS/RD ACQ/ 4.3 G570H TYPE=UP 1 7.0S 1 1 ONBOARD ACQ FOR PEAK 1.5 SPATIAL SCAN CYCLE 2 / 1-6 ------------------------------------------------------------------------------------------------------------------------------------ 1.5 H36 FOS/RD ACQ/ 1.0 G570H TYPE=UP 1 12.0S 1 1 ONBOARD ACQ FOR PEAK 2.0-4.0 SPATIAL SCAN ------------------------------------------------------------------------------------------------------------------------------------ 2 LOBE-N FOS/RD ACCUM 4.3 G190H 1900 1 300S 10 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 3 LOBE-N FOS/RD ACCUM 4.3 G270H 2800 1 500S 10 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 4 LOBE-N FOS/BL ACCUM 4.3 G130H 1550 1 1000S 10 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 5 M8 PC IMAGE PC7-FIX F656N 6562 1 200S 1 1 ORIENT 90.0D +/- 10.0D PCS MODE F / 5-6 ------------------------------------------------------------------------------------------------------------------------------------ 6 M8 PC IMAGE PC7-FIX F673N 6731 1 600S 1 1 SAME POS FOR 6.0 AS 5.0 ------------------------------------------------------------------------------------------------------------------------------------ Scan Paramters Form Proposal ID: 4805c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ Data ID: 1 Exposure Logsheet lines: 1.0 FGS Scan: DWELL Dwell Only: dwell points/line: 3 Seconds per dwell: 7.00 Scan width (arc-secs): 0.0000 Scan length (arc-secs): 2.8000 Angle between sides (degrees) 90.00 Number of lines: 1 Scan rate (arc-sec/sec): 0.0000 PA of first scan line (degrees) 0.000 Scan frame (CEL or S/C): S/C Length Offset (arc-sec): 1.4000 Width Offset (arc-sec): 0 ------------------------------------------------------------------------------------------------------------------------------------ Data ID: 2 Exposure Logsheet lines: 1.5 FGS Scan: DWELL Dwell Only: dwell points/line: 6 Seconds per dwell: 12.00 Scan width (arc-secs): 0.7000 Scan length (arc-secs): 3.5000 Angle between sides (degrees) 90.00 Number of lines: 2 Scan rate (arc-sec/sec): 0.0000 PA of first scan line (degrees) 90.000 Scan frame (CEL or S/C): S/C Length Offset (arc-sec): 1.7500 Width Offset (arc-sec): 0.3500 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4805c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD FOS/BL PC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAK ACCUM IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters TYPE=UP ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GO/AM ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 2.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category INTERSTELLAR MEDIUM ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category HII REGION ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ONBOARD ACQ FOR 1.5; SPATIAL SCAN; CYCLE 2 / 1-6; ONBOARD ACQ FOR 2.0-4.0; ORIENT 90.0D +/- 10.0D; PCS MODE F / 5-6; SAME POS FOR 6.0 AS 5.0; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G570H G190H G270H G130H F656N F673N ------------------------------------------------------------------------------------------------------------------------------------ Target Names H36 LOBE-N HOURGLASS-NORTH LOBE-S HOURGLASS-SOUTH M8 HOURGLASS ------------------------------------------------------------------------------------------------------------------------------------