13516( 2) - 30-Sep-2013 12:42:19 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 13516 Version: 2 Check-in Time: 30-Sep-2013 12:42:19 STScI Edit Number: 0 Title The Variable Absorption and Disrupting X-ray Jet of the Broad Absorption Line Radio-Loud Quasar PG 1004+130 ------------------------------------------------------------------------------------ Type Cycle GO 21 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. W. Nielsen Brandt The Pennsylvania State University Y CoI: Dr. Brendan Miller University of Michigan N CoI: Dr. Sarah Gallagher The University of Western Ontario N CoI: Dr. Bin Luo The Pennsylvania State University N ------------------------------------------------------------------------------------ Abstract We propose non-simultaneous joint Chandra (60 ks), XMM-Newton (60 ks), and HST (1 orbit) observations of the remarkable BAL RLQ PG 1004+130. These, in conjunction with our previous X-ray/UV coverage, will yield (1) one of the most comprehensive X-ray spectral monitoring campaigns of a variable BAL quasar undertaken, probing multi-year and multi-month timescales to constrain the nature of the X-ray absorber; (2) the highest S/N X-ray spectra of a BAL RLQ currently available, enabling modeling of X-ray absorption and the underlying continuum; and (3) the deepest X-ray imaging yet obtained of a disrupting jet in a hybrid morphology radio source, allowing tests for jet flux variability and characterization of the morphologies and spectra of the jet and diffuse emission. We prefer that the Chandra and XMM-Newton observations take place 1-9 months apart, with the HST observation also within this window. ------------------------------------------------------------------------------------ Observations Description ------------------------ We request one HST orbit to obtain a COS/NUV spectrum investigating established C IV Broad Absorption Line (BAL) variability in PG 1004+130 (at redshift 0.24) across rest-frame decades. The science requirements are resolution matching the most recent 2003 STIS observation and continuum signal-to-noise of about 20-30 near the C IV region. These are provided by COS with the G230L grating (central wavelength of 2950 A), which has resolution of R ~ 2500 and still provides excellent throughput (the estimated S/N from the ETC comfortably meets our requirements at 1950 A in ~ 25-30 minutes). Importantly, the G230L grating spans the entire C IV emission line and BAL absorption region on the A stripe, whereas the stripes on the higher-resolution G185M grating are too narrow to accomplish this in a single exposure; our science goals require only moderate resolution, so this highly inefficient alternative is ruled out. The target is the brightest source within the field and is much fainter than the bright objects limits (<0.1 count/s for the brightest pixel). Use of the standard TIME-TAG mode will permit exclusion of any poor quality data and give improved background removal. 13516( 2) - 30-Sep-2013 12:42:19 - [ 2] We prefer that the Chandra and XMM-Newton observations take place 1-9 months apart, with the HST observation also within this window. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- PI W.N. Brandt has little experience with HST operational details, so please check this Phase II submission carefully. As explained in the attached Chandra proposal, we basically want good spectral coverage of the C IV line region. The C IV line has a rest wavelength of 1549 A, which here corresponds to an observed wavelength of 1921 A (the redshift of PG 1004+130 is 0.24). ------------------------------------------------------------------------------------ 13516( 2) - 30-Sep-2013 12:42:19 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 PG1004+130 GALAXY, ACCRETION DISK, RA=10H07M26.0997S +/- 0.152", J2000 Z = 0.24 V = 15.68 QUASAR, WIND DEC=+12D48'56.21" +/- 0.0968" Reference Frame: ICRS Comments: Coordinates for PG 1004+130 are available from Andrei et al. 2009A&A...505..385A RA 2000 = 10 07 26.0997 DEC 2000 = 12 48 56.210 RA Error = 0.152 arcsec DEC Error = 0.0968 arcsec This is an optical representation of the IRCS. The redshift of PG 1004+130 is 0.24. We have set the flux for PG 1004+130 based upon the recent Swift UVOT UVW2 measurements. This is perhaps somewhat conservative given the range of historical UV flux. ------------------------------------------------------------------------------------------------------------------------------------ 13516( 2) - 30-Sep-2013 12:42:19 - [ 4] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 PG1004+130 COS/NUV ACQ/PEA PSA G230L 2950 1 100 S (100 KXD S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PG1004+130 COS/NUV ACQ/PEA PSA G230L 2950 STEP-SIZE=1.0, NUM-POS=5, 1 30 S (30 KD CENTER=FLUX-WT-FLR S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PG1004+130 COS/NUV TIME-TA PSA G230L 2950 BUFFER-TIME=402, FP-POS=ALL 1 502 S G (2008 S) ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ PG1004+130 1 COS/NUV ACQ/PEA PSA G230L 2950 none none none none 1 N/A KXD PG1004+130 2 COS/NUV ACQ/PEA PSA G230L 2950 none none none none 1 N/A KD PG1004+130 3 COS/NUV TIME-TA PSA G230L 2950 none none none 1 1 N/A G PG1004+130 3 COS/NUV TIME-TA PSA G230L 2950 none none none 2 1 N/A G PG1004+130 3 COS/NUV TIME-TA PSA G230L 2950 none none none 3 1 N/A G PG1004+130 3 COS/NUV TIME-TA PSA G230L 2950 none none none 4 1 N/A G 13516( 2) - 30-Sep-2013 12:42:19 - [ 5] Summary Form for Proposal 13516 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/PEAKD, ACQ/PEAKXD, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=402, CENTER=FLUX-WT-FLR, FP-POS=ALL, NUM-POS=5, STEP-SIZE=1.0 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G230L ------------------------------------------------------------------------------------------------------------------------------------ Target Names PG1004+130 ------------------------------------------------------------------------------------------------------------------------------------