Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 1039c Report Date: 09-May-96:16:04 Version: ********** Check-in Date: ********** 1.Proposal Title: UV AND OPTICAL SPECTROSCOPY AND IMAGING OF THE COMPLEX OBJECT 3C 303: CYCLE 9 OBSERVATIONS ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID QUASARS & AGN GTO/FOS Sub Category GTO/FOS ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone E. margaret Burbidge UC, SAN DIEGO USA (619) 534-4477 ------------------------------------------------------------------------------------ 7. Abstract Interaction between high-energy electrons and ambient cluster gas may produce faint optical or UV radiation. A good case, demanding the spatial resolution of ST and the UV capability of the FOS, is 3C 303, a very complex radio/optical object with jets, surrounding knots, and a candidate optical synchrotron emission patch. ------------------------------------------------------------------------------------ 8. Scientific Key Words: RADIO GALAXY, JET, SYNCHROTRON, ACTIVE NUCLEUS ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 1.17 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 1039c PI: E. margaret Burbidge Proposal Title: UV AND OPTICAL SPECTROSCOPY AND IMAGING OF THE COMPLEX OBJECT 3C 303: CYCLE 9 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 MARTIN MARIETTA CORPORATION USA Arthur F. Davidsen JOHNS HOPKINS UNIVERSITY USA Richard J. Harms APPLIED RESEARCH CORPORATION USA Ralph Bohlin SPACE TELESCOPE SCIENCE USA INSTITUTE Holland C. Ford SPACE TELESCOPE SCIENCE USA INSTITUTE ------------------------------------------------------------------------------------ 3. Description of proposed observations. We will observe the region around 3C 303 with the WF/PC and a U filter. The exact choice of filter and pointing will depend on filters available and number of usable CCD chips. The observation will be 2400s in cycle 9. ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. We need ST resolution for the galaxy's nucleus and jet. We need low background for the faint knots. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. These observations will be reduced using standard imaging software in SDAS and IRAF. ------------------------------------------------------------------------------------ 8. Additional comments or special requests. Optical spectroscopy and photometry will be performed using the facilities of Lick Observatory. We will try to make the optical observations simultaneous with the HST UV observations if possible. This imposes no requirements on HST. Page 3 ------------------------------------------------------------------------------------ 9. Description of previous HST work. Collaborators have received data from a number of GTO programs, SAT, and ERO programs. Related programs which have had observations are as follows: 1026 - ``UV Spectra of Low-Redshift-QSOs'', 1027 - ``UV Spectra of QSOs with z> 3.1'', 1029 - ``Spectropolarimetry of QSOs, Blazars, and AGN'', and 1033 - ``Search for Misdirected BL Lac Objects''. Low resolution observations of three high redshift QSOs have not revealed any with light at He II lambda 304. Observations of UM 675 have shown that any He I Gunn--Peterson effect is small, that He I absorption lines are not strong, that predictions of the ``Lyman valley'' may be correct, and that low redshift Ly-alpha is more prevalent than expected. Observations of low redshift QSOs (including 3C 273) have shown even more clearly that Ly-alpha absorption occurs in greater numbers than expected, as well as showing emission-- line profile differences more clearly than from earlier data. Unexpectedly, Ly- alpha is narrower than H-alpha. ``HST Imaging of the Inner 3 Arcseconds of NGC 1068 in the Light of [O III] lambda5007'', I.N.Evans, H.C.Ford, A.L.Kinney, R.R.J.Antonucci, L.Armus, and S.Caganoff, {\it Ap.J.(Lett.)}, {\bf 369}, L27, 1991. ``Faint Object Camera Observations of a Globular Cluster Nova Field'', B.Margon, S.F.Anderson, R.A.Downes, R.C.Bohlin, and P.Jakobsen, {\it Ap.J.(Lett.)}, {\bf 369}, L71, 1991. ``Far--Ultraviolet Spectroscopy of the Quasar UM 675 with the Faint Object Spectrograph on the Hubble Space Telescope'', E.A.Beaver, E.M.Burbidge, R.D.Cohen, V.T.Junkkarinen, R.W.Lyons, E.I.Rosenblatt, G.F.Hartig, B.Margon, and A.F.Davidsen, {\it Ap.J.(Lett.)}, {\bf 377}, L1, 1991. ``The Ultraviolet Absorption Spectrum of 3C 273'', J.N.Bahcall, B.T.Jannuzi, D.P.Schneider, G.F.Hartig, R.Bohlin, and V.Junkkarinen, {\it Ap.J.(Lett.)}, {\bf 377}, L5, 1991. ``Faint Object Spectrograph Spectroscopy of Resolved Structure in the Nucleus of NGC 1068'', S.Caganoff, R.R.J.Antonucci, H.C.Ford, G.A.Kriss, G.Hartig, L.Armus, I.N.Evans, E.Rosenblatt, R.C.Bohlin, and A.L.Kinney, {\it Ap.J.(Lett.)}, {\bf 377}, L9, 1991. ``Faint Object Spectrograph Observations of the Low-Luminosity Seyfert Galaxy NGC 1566'', G.A.Kriss, G.F.Hartig, L.Armus, W.P.Blair, S.Caganoff, and L.Dressel, {\it Ap.J.(Lett.)}, {\bf 377}, L13, 1991. ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). The majority of the resources required for this project other than the normal facilities of a university (librarys, offices, etc.) were supplied by NASA to the members of the FOS IDT for these projects. These include all the computing facilities required for the completion of data reduction and analysis. Optical and IR ground--based observing facilities and support are provided by the University of California. ------------------------------------------------------------------------------------ 13. We will observe objects in the complex radio source 3C303, to determine the nature of the interaction between galaxy nucleus and radio lobes. ------------------------------------------------------------------------------------ 11. Address Information Name: E. MARGARET BURBIDGE Category: PI Institution: UNIVERSITY OF CALIFORNIA, SAN DIE Address: CASS 0111, UCSD 9500 Gilman Drive City: LA JOLLA State: CA Zip Code: 92093 Country: USA Telephone: (619) 534-4477 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST a) Fixed Targets ID = 1039c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 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| | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------ 3 3C303-FIELD E,303,315,313,907, RA=14H 41M 23.8S +/- 0.1S, 1950 H,515 DEC=52D 14' 18.3" +/- 1.", PLATE-ID = 01AL ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1039c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 4 3C303-FIELD WFC IMAGE ALL F336W CR-SPLIT=NO 1 2400S 2 CYCLE 9 / 4 Comments: EXACT CHOICE OF FILTER AND EXPOSURE WILL DEPEND ON CHARACTERISTICS OF WF/PC II ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 1039c [ 6] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/FOS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 1.17 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category QUASARS & AGN ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category GTO/FOS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 9 / 4; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F336W ------------------------------------------------------------------------------------------------------------------------------------ Target Names 3C303-FIELD ------------------------------------------------------------------------------------------------------------------------------------