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J/AJ/135/928         The black hole-bulge relationship             (Shen+, 2008)

The black hole-bulge relationship in luminous broad-line active galactic nuclei and host galaxies. Shen J., Vanden Berk D.E., Schneider D.P., Hall P.B. <Astron. J., 135, 928-946 (2008)> =2008AJ....135..928S
ADC_Keywords: Active gal. nuclei ; Magnitudes ; Redshifts ; Spectroscopy Keywords: galaxies: active - galaxies: bulges - galaxies: nuclei - quasars: general Abstract: We have measured the stellar velocity dispersions (σ*) and estimated the central black hole (BH) masses for over 900 broad-line active galactic nuclei (AGNs) observed with the Sloan Digital Sky Survey. The sample includes objects which have redshifts up to z=0.452, high-quality spectra, and host galaxy spectra dominated by an early-type (bulge) component. The AGN and host galaxy spectral components were decomposed using an eigenspectrum technique. The BH masses (MBH) were estimated from the AGN broad-line widths, and the velocity dispersions were measured from the stellar absorption spectra of the host galaxies. The range of black hole masses covered by the sample is approximately 106<MBH<109M. We find no significant evolution in the MBH* relation with redshift, up to z∼0.4, after controlling for possible dependences on other variables. Interested readers can contact the authors to obtain the eigenspectrum decomposition coefficients of our objects. Description: The broad-line AGNs used for this study were selected from the SDSS which use a dedicated 2.5m telescope and a pair of multi-object spectrographs. We define broad-line AGNs here to mean any extragalactic object with at least one spectroscopic emission line with a FWHM of at least 1000km/s, regardless of the object luminosity or morphology. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 138 960 Sample Properties
See also: J/ApJ/614/91 : Black hole mass and accretion rate of AGNs (Wu+, 2004) J/ApJ/613/682 : AGN central masses and broad-line region sizes (Peterson+ 2004) J/AJ/131/84 : AGNs and host galaxies information (Vanden Berk+, 2006) II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009) : SDSS Home Page Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 18 A18 --- SDSS Source identification ( 20- 25 F6.4 --- z Redshift 27- 32 F6.3 --- imag SDSS apparent i band magnitude 35- 39 F5.3 --- Hfrac [0/1] Host galaxy fractional flux contribution 41- 45 F5.2 deg phi Host galaxy classification angle (2) 47- 52 F6.3 --- S/N The i band spectroscopic signal-to-noise 56- 59 F4.1 --- S/N(H) Host galaxy S/N 61- 66 F6.2 mag gMAG Host galaxy absolute SDSS g band magnitude 68- 72 F5.2 [uW/nm] logL1 Host subtracted AGN monochromatic continuum luminosity at 5100 Angstroms (erg/s/Å) 74- 78 F5.2 [uW/nm] logL2 Host not subtracted AGN monochromatic continuum luminosity at 5100 Angstroms 80- 84 F5.1 km/s sigma ?=0 Stellar velocity dispersion uncorrected for finite fiber diameter 86- 90 F5.1 km/s Csigma ?=0 Corrected for finite fiber diameter stellar velocity dispersion 92- 95 F4.1 km/s e_sigma ?=0 Formal uncertainty in sigma 97-101 F5.2 10+3km/s FWHM.b ?=0 Hβ Full-Width at Half-Maximum 103-106 F4.2 10+3km/s e_FWHM.b ?=0 Formal uncertainty in FWHM-Hb 108-112 F5.2 10+3km/s FWHM.a ?=0 Hα Full-Width at Half-Maximum 114-117 F4.2 10+3km/s e_FWHM.a ?=0 Formal uncertainty in FWHM-Ha 120-123 F4.2 [solMass] logM ?=0 Log of the Black Hole mass 126-129 F4.2 [solMass] e_logM ?=0 Formal uncertainty in logM (1) 131 A1 --- f_logM [*] '*' if logM derived from FWHM(Hα). 133-138 F6.4 --- Lratio ?=0 Bolometric to Eddington luminosity ratio
Note (1): The uncertainties are formal uncertainties, actual uncertainties are probably dominated by systematics in broad-line region (BLR) geometry. Note (2): the galaxy classification angle φ is defined in Vanden Berk et al. (2006AJ....131...84V) and Yip (2004AJ....128..585Y); it must be in the range 0-15° for bulge-dominated galaxies.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 25-Jun-2010
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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