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J/ApJS/176/355         AGN X-Ray emission and black holes         (Kelly+, 2008)

Observational constraints on the dependence of radio-quiet quasar X-ray emission on black hole mass and accretion rate. Kelly B.C., Bechtold J., Trump J.R., Vestergaard M., Siemiginowska A. <Astrophys. J. Suppl. Ser., 176, 355-373 (2008)> =2008ApJS..176..355K
ADC_Keywords: QSOs ; X-ray sources Keywords: accretion, accretion disks - galaxies: active - quasars: general ultraviolet: galaxies - X-rays: galaxies Abstract: In this work we use a sample of 318 radio-quiet quasars (RQQs) to investigate the dependence of the ratio of optical/UV flux to X-ray flux, αox, and the X-ray photon index, ΓX, on black hole mass, UV relative to Eddington luminosity, and X-ray relative to Eddington luminosity. Our sample is drawn from the literature, with X-ray data from ROSAT and Chandra, and optical data mostly from the SDSS; 153 of these sources have estimates of ΓX from Chandra. We estimate MBH using standard estimates derived from the Hβ, MgII, and CIV broad emission lines. To date, this is the largest study of the dependence of RQQ X-ray parameters on black hole mass and related quantities, and the first to attempt to correct for the large statistical uncertainty in the broad-line mass estimates. Description: In this analysis we combine 169 RQQs from Kelly et al. (2007ApJ...665.1489K) with 149 RQQs from the main SDSS sample of Strateva et al. (2005, Cat. J/AJ/130/387) to create a sample of 318 RQQs. Out of these 318 sources, 276 (86.8%) are detected in the X-ray. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 61 318 Black Hole Parameters of the Sample
See also: VII/252 : SDSS-DR5 quasar catalog (Schneider+, 2007) J/ApJS/165/1 : BAL QSOs from SDSS DR3 (Trump+, 2006) J/AJ/130/387 : SDSS-ROSAT AGN data (Strateva+, 2005) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Hour of Right Ascension (J2000) 4- 5 I2 min RAm Minute of Right Ascension (J2000) 7- 10 F4.1 s RAs Second of Right Ascension (J2000) 12 A1 --- DE- Sign of the Declination (J2000) 13- 14 I2 deg DEd Degree of Declination (J2000) 16- 17 I2 arcmin DEm Arcminute of Declination (J2000) 19- 22 F4.1 arcsec DEs Arcsecond of Declination (J2000) 24- 28 F5.3 --- z Redshift 30- 34 F5.2 [solMass] logMBL Log of broad line mass estimate 36- 39 F4.2 [solMass] e_logMBL Uncertainty in logMBL 41- 45 F5.2 [-] logLX Log of 2keV to Eddington luminosity ratio (1) 47- 50 F4.2 [-] e_logLX Uncertainty in logLX 52- 56 F5.2 [-] logLUV Log of 2500AA to Eddington luminosity ratio (1) 58- 61 F4.2 [-] e_logLUV Uncertainty in LogLUV
Note (1): Where LEddington is calculated from the broad emission line estimate of MBlackhole, MBL.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 06-Jul-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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