11834( 3) - 22-May-2009 13:33:13 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11834 Version: 3 Check-in Time: 22-May-2009 13:33:13 STScI Edit Number: 0 Title Deconstructing AGN X-ray Spectra - Time for a Paradigm Shift? ------------------------------------------------------------------------------------ Type Cycle GO 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. T. Jane Turner University of Maryland Baltimore County CoI: Dr. D. Michael Crenshaw Georgia State University Research Y Foundation CoI: Dr. Lance Miller University of Oxford N CoI: Prof. Steven Kraemer Catholic University of America N CoI: Dr. James N. Reeves NASA Goddard Space Flight Center N ------------------------------------------------------------------------------------ Abstract We aim to detect and measure the ionization state and outflow velocities in the well-studied low-BH-mass AGN NGC 4051. We have been granted a 340 ks Suzaku observation to study continuum and low-resolution line spectral variability; HETG spectroscopy complements this by isolating narrow absorption lines arising from key zones of gas, allowing us to measure ionization, column and outflow velocities of the multiple ionized zones. A moderately ionized zone in particular can mimic the appearance of a broad Fe emission line but can be revealed by 6.5 keV Fe Kalpha absorption, for which there is already tentative evidence. A 320 ks HETG exposure will provide powerful diagnostic signatures across a wide range of ionisation. We also request HST time for tie-in UV spectroscopy. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will obtain G130M and G160M spectra of the nucleus of NGC 4051 during a single visit. Two orbits will be used to obtain G130M spectra at two different wavelength settings, to cover the wavelength gap. The same will be done with the G160M spectra, resulting in a total of 4 orbits. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11834( 3) - 22-May-2009 13:33:13 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-4051 GALAXY, SEYFERT RA=12H03M9.6000S +/- 0.1", J2000 V = 13.1 +/- 0.5 Flux (1290 Ang.) = DEC=+44D31'52.80" +/- 0.1" 1.3E-14 Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the NED database. ------------------------------------------------------------------------------------------------------------------------------------ 11834( 3) - 22-May-2009 13:33:13 - [ 3] Visit: 01 Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Schedule as soon as practical, because the X-ray observations of this variable Seyfert have already occurred. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-4051 COS/NUV ACQ/SEA BOA MIRRORA SCAN-SIZE=2 1 60 S RCH ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-4051 COS/NUV ACQ/IMA BOA MIRRORA 1 60 S GE ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-4051 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=500 1 1832 S G ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-4051 COS/FUV TIME-TA PSA G130M 1309 BUFFER-TIME=500 1 2771 S G ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-4051 COS/FUV TIME-TA PSA G160M 1577 BUFFER-TIME=500 1 2771 S G ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC-4051 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=500 1 2771 S G ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ NGC-4051 1 COS/NUV ACQ/SEA BOA MIRRORA none none none none 1 N/A RCH NGC-4051 2 COS/NUV ACQ/IMA BOA MIRRORA none none none none 1 N/A GE NGC-4051 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G NGC-4051 4 COS/FUV TIME-TA PSA G130M 1309 none none none none 2 N/A G NGC-4051 5 COS/FUV TIME-TA PSA G160M 1577 none none none none 3 N/A G NGC-4051 6 COS/FUV TIME-TA PSA G160M 1600 none none none none 4 N/A G 11834( 3) - 22-May-2009 13:33:13 - [ 4] Summary Form for Proposal 11834 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures BOA, PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/IMAGE, ACQ/SEARCH, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=500, SCAN-SIZE=2 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M, G160M, MIRRORA ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC-4051 ------------------------------------------------------------------------------------------------------------------------------------