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J/A+A/467/73     3σ hard sample of XMDS survey         (Tajer+, 2007)

Obscured and unobscured AGN populations in a hard-X-ray selected sample of the XMDS survey. Tajer M., Polletta M., Chiappetti L., Maraschi L., Trinchieri G., Maccagni D., Andreon S., Garcet O., Surdej J., Pierre M., Le Fevre O., Franceschini A., Lonsdale C.J., Surace J.A., Shupe D.L., Fang F., Rowan-Robinson M., Smith H.E., Tresse L. <Astron. Astrophys., 467, 73-91 (2007)> =2007A&A...467...73T
ADC_Keywords: Surveys ; Active gal. nuclei ; X-ray sources ; Infrared sources ; Redshifts ; Photometry, UBVRI Keywords: X-rays: general - surveys - galaxies: active Abstract: Our goal is to probe the populations of obscured and unobscured AGN investigating their optical-IR and X-ray properties as a function of X-ray flux, luminosity and redshift within a hard X-ray selected sample with wide multiwavelength coverage. We selected a sample of 136 X-ray sources detected at a significance of ≥3σ in the 2-10keV band (F2-10≳10-14erg/cm2/s) in a ∼1deg2 area in the XMM Medium Deep Survey (XMDS, Cat. J/A+A/439/413). The XMDS area is covered with optical photometry from the VVDS and CFHTLS surveys and infrared Spitzer data from the SWIRE survey. Based on the X-ray luminosity and X-ray to optical ratio, 132 sources are likely AGN, of which 122 have unambiguous optical - IR identification. The observed optical and IR spectral energy distributions of all identified sources are fitted with AGN/galaxy templates in order to classify them and compute photometric redshifts. X-ray spectral analysis is performed individually for sources with a sufficient number of counts and using a stacking technique for subsamples of sources at different flux levels. Hardness ratios are used to estimate X-ray absorption in individual weak sources. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 124 145 The 3σ hard sample
See also: III/250 : The VIMOS VLT deep survey (VVDS-DEEP) (Le Fevre+ 2005) J/A+A/461/81 : Galaxy clusters in the CFHTLS (Olsen+, 2007) J/A+A/403/857 : VLA-VIRMOS Deep Field (Bondi+, 2003) J/ApJ/591/640 : XMM-LSS low-frequency radio counterparts (Cohen+, 2003) J/A+A/439/413 : XMDS/VVDS 4σ catalogue (Chiappetti+, 2005) Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 4 I4 --- Seq Sequential number, XMDS NNNN in Simbad 6- 9 A4 --- --- [XMDS] 10- 25 A16 --- XMDS XMDS designation (JHHMMSS.s+DDMMSS) 27- 28 I2 h RAh Right ascension (J2000) 30- 31 I2 min RAm Right ascension (J2000) 33- 38 F6.3 s RAs Right ascension (J2000) 40 A1 --- DE- Declination sign (J2000) 41 I1 deg DEd Declination (J2000) 43- 44 I2 arcmin DEm Declination (J2000) 46- 51 F6.3 arcsec DEs Declination (J2000) 53- 57 F5.2 10-17W/m2 F2-10keV Flux in the 2-10keV band 59- 63 F5.2 --- HR Hardness ratio between the 2-10 and 0.5-2keV bands 65- 67 F3.1 arcsec X-O ?=- Distance between the X-ray and optical VVDS positions 69- 73 F5.2 mag Bmag ?=- VVDS B magnitude (in AB system) 75- 79 F5.2 mag Imag ?=- VVDS I magnitude (in AB system) 81 A1 --- Col [BR-] Color classification (1) 83- 87 F5.2 mag i'mag ?=- CFHTLS i' magnitude (in AB system) 89- 93 I5 uJy F3.6um ?=- SWIRE flux at 3.6um 95 A1 --- l_F24um Limit flag on F24um 96-100 I5 uJy F24um ?=- SWIRE flux at 24um 102-107 F6.4 --- zsp ?=- Spectroscopic redshift 109-113 F5.3 --- zph ?=- Photometric redshift 115-118 A4 --- Type SED classification 120-124 F5.2 [10-7W] logLX ?=- Absorption corrected X-ray luminosity in the 2-10keV band
Note (1): Color classification as follows: B = blue, i.e. B-I≤1 R = red, i.e. B-I>1 - = no value
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 17-Aug-2007
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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