Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 5123 Report Date: 18-Jul-95:16:58 Version: ********** Check-in Date: ********** 1.Proposal Title: IMAGING AND SPECTROPHOTOMETRY OF NUCLEAR ACTIVITY IN LINERS (FOS 15): CYCLE 4 OBSERVATIONS ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID QUASARS & AGN GTO/FOS 1038 Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Dr. Holland C. Ford SPACE TELESCOPE SCIENCE INST USA (301) 338-4803 ------------------------------------------------------------------------------------ 7. Abstract WF/PC narrow band images will be used to isolate ionized gas clouds near the nuclei and to look for organized structure such as disks, bubbles and jets. FOS spectrophotometry from 1200A to 7000A will be used to establish density, temperatures, chemical composition, ionization mechanisms, and reddening in the emission regions near the nucleus. Line profiles and radial velocities will be used to investigate broadening mechanisms such as turbulence, gas flows, and rotation. Small aperture spectra of the nucleus will be used to look for a photoionizing continuum and for line broadening in the nucleus, and will be used to establish physical conditions and dynamics of the nuclear gas. UV absorption lines will be searched for in the nuclear continuum in order to measure the amount and distribution of gas along the line-of-sight through the parent galaxy. ------------------------------------------------------------------------------------ 8. Scientific Key Words: LINER, AGN, IONIZED GAS, NUCLEUS ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 5.00 par: 0 10. Num targs pri: 2 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 5123 PI: Dr. Holland C. Ford Proposal Title: IMAGING AND SPECTROPHOTOMETRY OF NUCLEAR ACTIVITY IN LINERS (FOS 15): CYCLE 4 OBSERVATIONS ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Edward Beaver UC, SAN DIEGO USA E. Margaret Burbidge UC, SAN DIEGO USA Bruce Margon WASHINGTON, UNIVERSITY OF USA J. Roger P. Angel ARIZONA, UNIVERSITY OF USA Frank Bartko APPLIED RESEARCH CORPORATION USA Arthur F. Davidsen JOHNS HOPKINS UNIVERSITY USA Richard J. Harms APPLIED RESEARCH CORPORATION USA Ralph Bohlin SPACE TELESCOPE SCIENCE USA INSTITUTE Dr. Holland C. Ford SPACE TELESCOPE SCIENCE USA INSTITUTE ------------------------------------------------------------------------------------ 3. Description of proposed observations. We will obtain WFPC2 images of NGC4258 and NGC5194 as specified in the exposure logsheet. For each target, all exposures should be obtained at the same pointing and roll angle. CR-SPLITs should be 0.333 (2:1) to maximize dynamic range. The targets should be placed at the PC1 aperture location. ANY CHANGES TO THIS PROGRAM MUST HAVE SIGNED APPROVAL BY THE PI OR HIS DESIGNEE. Cycle 4: 401-406 ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. The SV prerequisite programs for all FOS observations in this program are: Prop ID 2195 FOS Target Acquisition Tests - All observations Prop ID 1317 Int./Ext. Wavelength Offsets - 1st target Prop ID 1318 Spectral Flat Fields - 1st target Prop ID 1320 Absolute Spectrophotometry - 1st visit of bright targets All WF/PC imaging with a center wavelength blueward of 5000 Angstroms requires UV flood ------------------------------------------------------------------------------------ 12. This is an integrated program to study the structure, distribution, dynamics, and ionization of gas in LINERS. The program will be complete when all spectroscopy and imaging have been completed on six of the eight galaxies. Data should not be released until 1 year after completion of the sixth galaxy. ------------------------------------------------------------------------------------ 13. WF/PC images will be used to study the structure and distribution of ionized gas in low redshift LINERS. FOS spectra will be used to establish physical conditions, chemical composition, ionization mechanisms, and dynamics of gas near the nucleus. Small-aperture spectra of the nucleus will be used to establish the presence or absence of a photoionizing continuum and to measure physical conditions and dynamics of the nuclear gas. ------------------------------------------------------------------------------------ 11. Address Information Name: HOLLAND C. FORD Category: PI Institution: SPACE TELESCOPE SCIENCE INSTITUTE Address: HOMEWOOD CAMPUS City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: (301) 338-4803 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 5123 [ 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 NGC5194 E,301,317,910,923,924 RA=13H 29M 52.7687S +/- 2000 V=464 0.3", DEC=+47D 11' 42.695" +/- 0.3", PLATE-ID=008S ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4258 E,301,317,910,923,924 RA=12H 18M 57.55S +/- 0.3", 2000 Z=0.0023 DEC=+47D 18' 14.2" +/- 0.3" ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 5123 [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 401 NGC5194 WFPC2 IMAGE PC1 F502N CR-SPLIT=0.333 1 1800S 1 1 SAME POS FOR 402- 403 AS 401 GROUP 401-403 NO GAP CYCLE 4 / 401-406 ------------------------------------------------------------------------------------------------------------------------------------ 402 NGC5194 WFPC2 IMAGE PC1 F656N CR-SPLIT=0.333 1 1800S 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 403 NGC5194 WFPC2 IMAGE PC1 F547M CR-SPLIT=0.333 1 900S 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 404 NGC4258 WFPC2 IMAGE PC1 F502N CR-SPLIT=0.333 1 2400S 1 1 SAME POS FOR 405- 406 AS 404 GROUP 404-406 NO GAP ------------------------------------------------------------------------------------------------------------------------------------ 405 NGC4258 WFPC2 IMAGE PC1 F658N CR-SPLIT=0.333 1 2400S 1 1 ------------------------------------------------------------------------------------------------------------------------------------ 406 NGC4258 WFPC2 IMAGE PC1 F547M CR-SPLIT=0.333 1 1200S 1 1 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 5123 [ 5] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=0.333 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/FOS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 5.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QUASARS & AGN ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SAME POS FOR 402-403 AS 401; GROUP 401-403 NO GAP; CYCLE 4 / 401-406 SAME POS FOR 405-406 AS 404; GROUP 404-406 NO GAP ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F502N F656N F547M F658N ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC5194 NGC4258 ------------------------------------------------------------------------------------------------------------------------------------