/ftp/cats/J_A+A/319/413



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J/A+A/319/413       ROSAT detected quasars. I. (Brinkmann+ 1997)
The following files can be converted to FITS (extension .fit .fiz or .fiZ)
	table1
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Query from: http://vizier.u-strasbg.fr/cgi-bin/VizieR?-source=J/A+A/319/413
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drwxr-xr-x 17 cats archive 4096 Feb 20 2013 [Up] drwxr-xr-x 2 cats archive 4096 Dec 15 09:37 [TAR file] -rw-r--r-- 1 cats archive 449 Dec 9 1997 .message -r--r--r-- 1 cats archive 6852 Feb 9 1998 ReadMe -rw-r--r-- 1 cats archive 768 Sep 19 2007 +footg5.gif -rw-r--r-- 1 cats archive 6775 Mar 5 2008 +footg8.gif -r--r--r-- 1 cats archive 71940 Sep 27 1996 table1
Beginning of ReadMe : J/A+A/319/413 ROSAT detected quasars. I. (Brinkmann+ 1997) ================================================================================ Broad-band energy distribution of ROSAT detected quasars. I. Radio-loud objects. Brinkmann W., Yuan W., and Siebert J. <Astron. Astrophys. 319, 413 (1997)> =1997A&A...319..413B (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: QSOs ; X-ray sources Mission_Name: ROSAT Keywords: galaxies: active - quasars: general - radio sources: galaxies - X-rays: galaxies Abstract: We have compiled a sample of all quasars with measured radio emission from the Veron-Cetty - Veron catalogue (1993, VV93 VII/166) detected by ROSAT in the ALL-SKY SURVEY (RASS, Voges 1992), as targets of pointed observations, or as serendipitous sources from pointed observations as publicly available from the ROSAT point source catalogue (ROSAT-SRC, Voges et al. 1995). The total number of ROSAT detected radio quasars from the above three sources is 654 objects. 69 of the objects are classified as radio-quiet using the defining line at a radio-loudness of 1.0, and 10 objects have no classification. The 5GHz data are from the 87GB radio survey, the NED database, or from the Veron-Cetty - Veron catalogue. The power law indices and their errors are estimated from the two hardness ratios given by the SASS assuming Galactic absorption. The X-ray flux densities in the ROSAT band (0.1-2.4keV) are calculated from the count rates using the energy to counts conversion factor for power law spectra and Galactic absorption. For the photon index we use the value obtained for a individual source if the estimated 1 sigma error is smaller than 0.5, otherwise we use the mean value 2.14.

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