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J/A+A/539/A48        XMM AGN optical-UV luminosities          (Marchese+, 2012)

The optical-UV spectral energy distribution of the unabsorbed AGN population in the XMM-Newton Bright Serendipitous Survey. Marchese E., Della Ceca R., Caccianiga A., Severgnini P., Corral A., Fanali R. <Astron. Astrophys., 539, A48 (2012)> =2012A&A...539A..48M
ADC_Keywords: Active gal. nuclei ; Energy distributions ; Ultraviolet ; X-ray sources ; Galaxies, optical Keywords: galaxies: active - galaxies: nuclei - accretion, accretion disks - cosmology: observations - methods: statistical Abstract: Active galactic nuclei (AGN) emit radiation over a wide range of wavelengths, with a peak of emission in the far-UV region of the electromagnetic spectrum, a spectral region that is historically difficult to observe. Using optical, GALEX UV, and XMM-Newton data we derive the spectral energy distribution (SED) from the optical/UV to X-ray regime of a sizeable sample of AGN. The principal motivation is to investigate the relationship between the optical/UV emission and the X-ray emission and provide bolometric corrections to the hard X-ray (2-10keV) energy range, kbol, the latter being a fundamental parameter in current physical cosmology. Description: We construct and study the X-ray to optical SED of a sample of 195 X-ray selected Type 1 AGN belonging to the XMM-Newton bright serendipitous survey (XBS). The optical-UV luminosity was computed using data from the Sloan Digital Sky Survey (SDSS), from our own dedicated optical spectroscopy and the satellite GALaxy evolution EXplorer (GALEX), while the X-ray luminosity was computed using XMM-Newton data. Because it covers a wide range of redshift (0.03<z≲2.2), X-ray luminosities (41.8<logL[2-10]keV<45.5erg/s) and because it is composed of "bright objects", this sample is ideal for this kind of investigation. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 104 195 Main properties of the sample of 195 Type 1 AGN analysed in this work
See also: J/A+A/428/383 : XMM-Newton Bright Serendipitous Survey (Della Ceca+, 2004) J/A+A/487/119 : AGN in XMM-Newton Hard Bright Survey (Della Ceca+, 2008) J/A+A/530/A42 : X-ray properties of AGN in XBS (Corral+, 2011) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 16 A16 --- XBS XBS name (JHHMMSS.s+DDMMSS) 18- 21 F4.2 --- z Redshift 23- 27 F5.2 [10-7W] logLd Disc luminosity 29- 32 F4.2 [10-7W] E_logLd Error on logLd (upper value) 34- 37 F4.2 [10-7W] e_logLd Error on logLd (upper value) 39- 43 F5.2 [10-7W] logLX X-ray luminosity in 2-10keV band LX 45- 49 F5.2 [10-7W] logLb Bolometric luminosity Lbol 51- 54 F4.2 [10-7W] E_logLb Error on logLb (upper value) 56- 59 F4.2 [10-7W] e_logLb Error on logLb (lower value) 61- 64 F4.2 --- Gamma Photon index Γ (1) 65 A1 --- n_Gamma [c] Note on Gamma (2) 66- 69 F4.2 --- E_Gamma ? Error on Gamma (upper value) 71- 74 F4.2 --- e_Gamma ? Error on Gamma (lower value) 76- 79 F4.2 --- aox X-ray to optical-UV spectral index α 81- 84 F4.2 --- E_aox Error on aox (upper lower) 86- 89 F4.2 --- e_aox Error on aox (lower value) 91- 94 F4.2 [-] logkb Bolometric correction kbol (Lbol/LX) 96- 99 F4.2 [-] E_logkb Error on logkb (upper lower) 101-104 F4.2 [-] e_logkb Error on logkb (lower lower)
Note (1): For a detailed account of the X-ray properties of all the sources see Corral et al. (2011, Cat. J/A+A/530/A42) Note (2): Fixed parameter. We assume the cosmological model H0=65km/s/Mpc-1, ΩΛ=0.7 and ΩM=0.3 throughout this paper.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 23-Apr-2012
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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