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J/A+A/451/457       X-ray properties of AGN in CDFS          (Tozzi+, 2006)

X-ray spectral properties of active galactic nuclei in the Chandra Deep Field South. Tozzi P., Gilli R., Mainieri V., Norman C., Risaliti G., Rosati P., Bergeron J., Borgani S., Giacconi R., Hasinger G., Nonino M., Streblyanska A., Szokoly G., Wang J.X., Zheng W. <Astron. Astrophys., 451, 457-474 (2006)> =2006A&A...451..457T
ADC_Keywords: X-ray sources ; Active gal. nuclei ; Redshifts Keywords: X-rays: diffuse background - surveys - cosmology: observations - X-rays: galaxies - galaxies: active Abstract: We present a detailed X-ray spectral analysis of the sources in the 1Ms catalog of the Chandra Deep Field South (CDFS, J/ApJS/139/369) taking advantage of optical spectroscopy and photometric redshifts for 321 extragalactic sources out of the total sample of 347 sources. As a default spectral model, we adopt a power law with slope Gamma with an intrinsic redshifted absorption NH, a fixed Galactic absorption and an unresolved Fe emission line. For 82 X-ray bright sources, we are able to perform the X-ray spectral analysis leaving both Gamma and NH free. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 93 336 Best fit parameters for the whole sample of sources in the CDFS with a measured spectroscopic or photometric redshift
See also: J/ApJS/139/369 : Chandra Deep Field South. 1 Ms catalog (Giacconi+ 2002) J/ApJS/155/271 : Chandra Deep Field-South: Optical spectroscopy (Szokoly+ 2004) J/ApJS/155/73 : Photometric redshifts of X-ray sources in CDF-S (Zheng+ 2004) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [GZW2002] [1/901] Sequential number, [GZW2002] XID NNN in Simbad 5- 9 F5.3 --- z Redshift 11- 13 F3.1 --- q_z Quality flag (1) 15- 18 F4.2 --- Gamma Spectral slope (1.8 = fixed value) 20- 23 F4.2 --- e_Gamma ? Error on Gamma (lower limit) 25- 28 F4.2 --- E_Gamma ? Error on Gamma (upper limit) 30- 35 F6.2 10+22cm-2 NH Intrinsic absorption H column density (150.00 = fixed value) 37- 42 F6.2 10+22cm-2 e_NH ? Error on NH (lower limit) 44- 49 F6.2 10+22cm-2 E_NH ? Error on NH (upper limit) 51- 58 E8.3 10-7W L0.5-2keV Soft (0.5-2keV) luminosity 60- 67 E8.3 10-7W L2-10keV Hard (2-10keV) luminosity 69- 76 E8.3 mW/m2 F0.5-2keV Soft (0.5-2keV) band flux density 78- 85 E8.3 mW/m2 F2-10keV Hard (2-10keV) band flux density 87- 93 A7 --- XType X-type (2)
Note (1): Quality flags with Q≥1 indicate optical spectral quality as: Q = 1 corresponds to spectra with a single optical line identified Q = 2 indicates secure spectra but uncertain counterpart Q = 3 indicates secure redshift Note (2): X-type as follows: C-thick = sources for which the best fit is given by a PEXRAV model (exponentially cut-off power law plus a reflection component from neutral material, Magdziarz & Zdziardski, 1995MNRAS.273..837M) C-thin = sources for which the best fit model is a power law with intrinsic absorption Soft-C = sources whose best fit model includes a soft component with the same slope of the main power law.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 12-Jan-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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