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J/MNRAS/352/91      XMM-Newton/2dF survey. IV.         (Georgantopoulos+, 2004)

The XMM-Newton/2dF survey - IV. The X-ray spectral properties of the hard sources. Georgantopoulos I., Georgakakis A., Akylas A., Stewart G.C., Giannakis O., Shanks T., Kitsionas S. <Mon. Not. R. Astron. Soc., 352, 91-100 (2004)> =2004MNRAS.352...91G
ADC_Keywords: Radio sources ; QSOs ; Active gal. nuclei Keywords: galaxies: active - quasars: general - X-rays: general Abstract: We present an analysis of the X-ray spectral properties of 61 hard X-ray (2-8keV) selected sources from the bright XMM-Newton/2dF (f(2-8keV)>10-14erg/cm2/s) survey. This comprises nine XMMNewton pointings in the North Galactic Pole region (∼1.6deg2) and overlaps with the SDSS, 2QZ and 2dFGRS surveys. Our sources contribute about 50 per cent of the 2-10keV X-ray background down to the flux limit of 10-14erg/cm2/s. The hardness ratio distribution of the sample suggests a deficit of heavily absorbed sources. Spectroscopic identifications exist for 34 sources. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 98 61 Optical and X-ray properties of the sample
See also: B/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2002) IX/37 : XMM-Newton Serendipitous Source Catalogue (1XMM) (XMM-SSC, 2003) VII/226 : The 2dF Galaxy Redshift Survey 100k Data Release (2dFGRS, 2001) J/MNRAS/349/135 : XMM-Newton/2dF survey. II. (Georgakakis+, 2004) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number 3 A1 --- n_CR [d] if count rate and flux from MOS; otherwise from PN instrument. 5- 6 I2 h RAh X-ray right ascension (J2000) 8- 9 I2 min RAm X-ray right ascension (J2000) 11- 14 F4.1 s RAs X-ray right ascension (J2000) 16 A1 --- DE- X-ray declination sign (J2000) 17- 18 I2 deg DEd X-ray declination (J2000) 20- 21 I2 arcmin DEm X-ray declination (J2000) 23- 24 I2 arcsec DEs X-ray declination (J2000) 26- 30 F5.2 ct/s CR Counte rate at 2-8keV 32- 35 F4.2 ct/s e_CR rms uncertainty on CR 37- 41 F5.2 10-17W/m2 Flux Flux at 2-8keV (10-14erg/cm2/s) 43- 46 F4.2 10-17W/m2 e_Flux rms uncertainty on Flux 48- 52 I5 s ExpTime ? Total exposure time in 2-8keV band from merged PN + MOS image 54 A1 --- l_Pmemb Limit flag on Pmemb 55- 58 F4.2 % Pmemb ?=- Probability that a given candidate is chance coincidence 60- 62 F3.1 arcsec dr ?=- Separation of the optical counterpart from the X-ray centroid 64- 68 F5.2 mag gmag ? g magnitude of the optical counterpart 70- 79 A10 --- OClass Optical class 81- 86 F6.3 --- z ? Redshift 87 A1 --- u_z [?] Uncertainty flag on z 90- 96 A7 --- Class Classification (2) 98 A1 --- Note [fge] Note (1)
Note (1): Notes as follows: e = Photometric redshifts from SDSS catalogue f = X-ray/optical properties indicate Galactic star but spectroscopy not available g = Identification from 2QZ gives a star, but spectrum may be suggesting a galaxy at z= 0.243 Note (2): in this column, the ,eaning is as follows: AL = absorption lines BL = broad lines NL = norrow lines photo-z = photometric redshift from SDSS
History: From electronic version of the journal References: Georgakakis et al., Paper I 2003MNRAS.344..161G Georgakakis et al., Paper II 2004MNRAS.349..135G, Cat. J/MNRAS/349/135 Basilakos et al., Paper III 2004MNRAS.351..989B Georgakakis et al., Paper V 2004MNRAS.352.1005G Basilakos et al., Paper VI 2005MNRAS.356..183B Akylas et al., Paper VII 2004MNRAS.353.1015A Gaga et al., Paper VIII 2005MNRAS.363..811G
(End) Patricia Vannier [CDS] 03-Feb-2006
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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