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J/MNRAS/401/294    Optical identification of XMM-LSS sources    (Stalin+, 2010)

Optical identification of XMM sources in the Canada-France-Hawaii telescope legacy survey. Stalin C.S., Petitjean P., Srianand R., Fox A.J., Coppolani F., Schwope A. <Mon. Not. R. Astron. Soc., 401, 294-306 (2010)> =2010MNRAS.401..294S
ADC_Keywords: Surveys ; X-ray sources ; Photometry, SDSS Keywords: surveys - galaxies: active - quasars: general - X-rays: general Abstract: We present optical spectroscopic identifications of X-ray sources in ∼3deg2 of the XMM-Large Scale Structure survey (XMM-LSS), also covered by the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS), obtained with the AAOmega instrument at the Anglo-Australian Telescope. In a flux-limited sample of 829 point-like sources in the optical band with g'≤22mag and the 0.5-2keV flux (f0.5-2keV)>10-15erg/cm2/s, we observed 693 objects and obtained reliable spectroscopic identification for 487 sources, approximately 59 per cent of the overall sample. Description: The spectroscopic observations were performed with the AAOmega system at the 3.9-m Anglo-Australian Telescope (AAT), during the nights of 2006 September 25-27 and 2007 September 11-13. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 80 487 Properties of the optical identification of the XMM sources
See also: J/MNRAS/382/279 : XMM-LSS catalogue. Version I. (Pierre+, 2007) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [XLSS] 6- 21 A16 --- XLSS XLSS designation (JHHMMSS.s+DDMMSS) 23 I1 h RAh Optical right ascension (J2000) 25- 26 I2 min RAm Optical right ascension (J2000) 28- 33 F6.3 s RAs Optical right ascension (J2000) 35 A1 --- DE- Optical declination sign (J2000) 36 I1 deg DEd Optical declination (J2000) 38- 39 I2 arcmin DEm Optical declination (J2000) 41- 46 F6.3 arcsec DEs Optical declination (J2000) 48- 51 F4.2 arcsec Sep Angular separation between the XMM and optical position 53- 57 F5.2 mag g'mag SDSS g' magnitude 59- 62 F4.2 --- z Spectroscopic redshift 64 I1 --- q_z [1/3] Quality of redshift (1=secure)i (3) 66- 70 F5.2 --- alpha Broad-band spectral index (1) 72- 74 A3 --- Class This paper spectroscopic identification (2) 76- 80 A5 --- Inst [SWIRE ] SWIRE for objects detected by Spitzer
Note (1): Broad-band spectral index, alphaox=[log(LX/Lopt)]/[log(nuX/nuopt)] Note (2): Classes are: ALG = Absorption-line galaxy (at z<0.76) ELG = Emission-Line galaxy (at z<0.76) QSO = Quasar or broad-line AGN STA = Galactic stellar source Note (3): Quality of the redshift is: 1 = secure (two or more lines identified in the spectrum) 2 = only 1 broad/narrow emission/absorption line (ambiguous redshift) 3 = spectrum of poor quality
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 29-Apr-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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