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J/A+A/487/119       AGN in XMM-Newton Hard Bright Survey     (Della Ceca+, 2008)

The cosmological properties of AGN in the XMM-Newton Hard Bright Survey. Della Ceca R., Caccianiga A., Severgnini P., Maccacaro T., Brunner H., Carrera F.J., Cocchia F., Mateos S., Page M.J., Tedds J.A. <Astron. Astrophys. 487, 119 (2008)> =2008A&A...487..119D
ADC_Keywords: Active gal. nuclei ; X-ray sources Keywords: galaxies: active - galaxies: nuclei - galaxies: evolution - X-ray: diffuse background - X-ray: Surveys - X-ray: active galaxies Abstract: We investigate here the X-ray luminosity function (XLF) of absorbed (NH between 4x1021 and 1024cm-2) and unabsorbed (NH<4x1021cm-2) AGN, the fraction of absorbed AGN as a function of LX (and z), the intrinsic NH distribution of the AGN population, and the XLF of Compton thick (N_H>1024cm-2) AGN. To carry out this investigation, we have used the XMM-Newton Hard Bright Serendipitous Sample (HBSS), a complete sample of bright X-ray sources (fx≳7x10-14erg/cm2/s) at high galactic latitude (|b|>20°) selected in the 4.5-7.5keV energy band. The HBSS sample is now almost completely identified (97% spectroscopic identifications) and it can be safely used for a statistical investigation. The HBSS contains 62 AGN out of which 40 are unabsorbed (or marginally absorbed; NH<4x1021cm-2) and 22 are absorbed (NH between 4x1021 and ∼1024cm-2). Description: The XMM-Newton Hard Bright Serendipitous Survey (HBSS) is part of a bigger survey project known as XMM Bright Serendipitous Survey (XBS). This latter consists of two flux-limited serendipitous samples of X-ray selected sources at high galactic latitude (|b|>20deg): the XMM BSS sample (389 sources) and the XMM HBSS sample (67 sources, with 56 sources in common with the BSS sample) having an EPIC MOS2 count rate limit, corrected for vignetting, of 10-2cts/s (2x10-3cts/s) in the 0.5-4.5keV (4.5-7.5keV) energy band; the flux limit is ∼7x10-14cgs in both energy selection bands. At the time of this writing the spectroscopic identification rate is 87% for the BSS sample and 97% for the HBSS sample. The details on the XMM-Newton fields selection strategy and the source selection criteria of the XMM BSS and HBSS samples are discussed in Della Ceca et al. (2004, Cat. J/A+A/428/383), while a description of the optical data and analysis, of the optical classification scheme, and of the optical properties of the extragalactic sources identified so far, is presented in Caccianiga et al. (2008A&A...477..735C). The optical and X-ray properties of the galactic population are discussed in Lopez-Santiago et al. (2007A&A...463..165L).The current classification breakdown of the HBSS sample is as follows: 62 AGN, 1 cluster of galaxies (XBSJ 141830.5+251052), and 2 X-ray emitting stars (XBSJ 014100.6-675328 and XBSJ 123600.7-395217). Two X-ray sources (XBSJ080411.3+650906 and XBSJ 110050.6-344331) are still unidentified at the time of this writing. In table1 we report the basic X-ray spectral properties, (e.g., photon index, intrinsic absorbing column density NH, intrinsic 2-10keV luminosity) of the HBSS AGN sample obtained from a complete X-ray spectral analysis of the XMM-Newton data. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 83 62 Basic X-ray information of the XMM-Newton HBSS AGN Sample
See also: B/xmm : XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2007) IX/39 : XMM-Newton 2nd Serendipitous Source Catalogue (2XMM) (XMM-SSC, 2007) J/A+A/428/383 : XMM-Newton Bright Serendipitous Survey (Della Ceca+, 2004) J/A+A/444/79 : Lockman Hole brightest AGNs XMM observations (Mateos+, 2005) J/MNRAS/366/171 : Red AGN in XMM/SDSS fields (Georgakakis+, 2006) J/A+A/473/105 : Lockman Hole AGN variability with XMM (Mateos+, 2007) J/A+A/474/473 : XMM-LSS survey: AGN classifications (Garcet+, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [XBS] 4- 19 A16 --- XBS XBS source name (JHHMMSS.s+DDMMSS) 21- 25 F5.2 ct/ks CRate Source MOS2 count rate, (4.5-7.5keV band) 27- 30 F4.2 ct/ks e_CRate One sigma error on CRate 32- 36 F5.3 --- z Redshift of the source 38- 41 F4.2 --- Gamma X-ray photon index 43- 46 F4.2 --- e_Gamma ?=9.99 90% lower error on Gamma (1) 48- 51 F4.2 --- E_Gamma ?=9.99 90% upper error on Gamma (1) 53 A1 --- l_Nh Limit flag on Nh 54- 59 F6.3 10+22cm-2 Nh Absorbing column density at the source redshift 61- 65 F5.2 10+22cm-2 e_Nh ?=9.99 90% lower error on Nh (2) 67- 71 F5.2 10+22cm-2 E_Nh ?=9.99 90% upper error on Nh (2) 73- 77 F5.2 10-16W/m2 F2-10 Observed 2-10keV flux corrected for Galactic absorption 79- 83 F5.2 [10+35W] logL2-10 Log of the intrinsic (i.e. de-absorbed) 2-10keV luminosity
Note (1): If e_Gamma or E_Gamma are equal to 9.99 thus the photon index Gamma has been fixed. Note (2): If the absorbing column density is an upper limit thus e_Nh and E_Nh have been fixed to 9.99.
Acknowledgements: Roberto Della Ceca, roberto.dellaceca(at)
(End) Roberto Della Ceca [OABrera, Italy], Patricia Vannier [CDS] 24-Jul-2008
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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