8877( 4) - 11/10/00 09:35 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 8877 Version: 4 Check-in Date: 10-Nov-2000 09:34:23 1.Proposal Title: Simultaneous HST and Chandra Observations of the X-Ray/UV absorbers in Seyfert 1 Galaxies ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle GO 9 ------------------------------------------------------------------------------------ 4. Investigators Contact? PI: Tahir Yaqoob The Johns Hopkins University CoI: D. Michael Crenshaw Catholic University of America Y CoI: Steven B. Kraemer Catholic University of America N CoI: Ian George NASA/GSFC/UMBC N CoI: Jane Turner NASA/GSFC/UMBC N CoI: Kirpal Nandra NASA/GSFC/USRA N CoI: Peter Serlemitsos NASA/GSFC N ------------------------------------------------------------------------------------ 5. Abstract UV and X-ray observations of intrinsic absorption reveal that outflowing photoionized gas with a substantial covering factor is a major nuclear component in at least 50\% of Seyfert 1 galaxies. X-ray observations suggest multiple zones with highly variable ionization states and column densities. UV observations reveal multiple kinematic components, with column densities that vary in time. This variability indicates that simultaneous UV and X-ray observations at high spectral resolution are the only way to decipher the complex kinematic and ionization structure and the true connection between UV and X-ray absorbers, and hence form an accurate picture of the environs of the inner nucleus. We propose a program to do this for the bright Seyfert 1 galaxy Mrk 509 using the STIS echelle gratings on {\it HST} and the high-energy gratings on {\it Chandra}. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will obtain E140M (3 orbits) and E230M (1 orbit) spectra of the nucleus. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- To be coordinated with simultaneous Chandra observations. ------------------------------------------------------------------------------------ 8877( 4) - 11/10/00 09:35 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 MRK509 GALAXY, SEYFERT RA=20H 44M 9.76S +/- 0.02S, DEC= J2000 Z = V = 12.4 -10D 43' 24.5" +/- 0.3", PLATE- 0.034 ID=00E1 Coordinate Source: GUIDE_STAR_CATALOG 8877( 4) - 11/10/00 09:35 - [ 3] Visit: 01 Visit Priority: Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: To be coordinated with simultaneous Chandra observations. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 MRK509 STIS/C ACQ F28X50L MIRROR 1 0.3 S CD P ------------------------------------------------------------------------------------------------------------------------------------ 20 MRK509 STIS/F ACCUM 0.2X0.2 E140M 1425 1 2200 S UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 30 MRK509 STIS/F ACCUM 0.2X0.2 E140M 1425 1 2700 S UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 40 MRK509 STIS/F ACCUM 0.2X0.2 E140M 1425 1 2700 S UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 50 MRK509 STIS/N ACCUM 0.2X0.2 E230M 2707 1 2700 S UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 8877( 4) - 11/10/00 09:35 - [ 4] Summary Form for Proposal 8877 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures F28X50LP 0.2X0.2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD STIS/FUV-MAMA STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR E140M E230M ------------------------------------------------------------------------------------------------------------------------------------ Target Names MRK509 ------------------------------------------------------------------------------------------------------------------------------------ Wavelengths 1425 2707 ------------------------------------------------------------------------------------------------------------------------------------