========================================================================== J/ApJS/191/124 Optical spectroscopy of X-ray sources (Silverman+, 2010) The following files can be converted to FITS (extension .fit or fit.gz) table4.dat table7.dat table8.dat ========================================================================== Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/ApJS/191/124 ==========================================================================
drwxr-xr-x 14 cats archive 4096 Jan 29 2012 [Up] drwxr-xr-x 2 cats archive 4096 May 12 09:55 [TAR file] -rw-r--r-- 1 cats archive 489 Aug 16 2012 .message -r--r--r-- 1 cats archive 10426 Aug 16 2012 ReadMe -rw-r--r-- 1 cats archive 1009 Aug 16 2012 +footg5.gif -rw-r--r-- 1 cats archive 2919 Aug 16 2012 +footg8.gif -r--r--r-- 1 cats archive 58465 Nov 29 2010 table4.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 2205 Nov 29 2010 table7.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 2370 Nov 29 2010 table8.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/ApJS/191/124 Optical spectroscopy of ECDF-S X-ray sources (Silverman+, 2010) ================================================================================ The Extended Chandra Deep Field-South survey: optical spectroscopy of faint X-ray sources with the VLT and Keck. Silverman J.D., Mainieri V., Salvato M., Hasinger G., Bergeron J., Capak P., Szokoly G., Finoguenov A., Gilli R., Rosati P., Tozzi P., Vignali C., Alexander D.M., Brandt W.N., Lehmer B.D., Luo B., Rafferty D., Xue Y.Q., Balestra I., Bauer F.E., Brusa M., Comastri A., Kartaltepe J., Koekemoer A.M., Miyaji T., Schneider D.P., Treister E., Wisotski L., Schramm M. <Astrophys. J. Suppl. Ser., 191, 124-142 (2010)> =2010ApJS..191..124S ================================================================================ ADC_Keywords: Active gal. nuclei ; Spectroscopy ; Redshifts ; X-ray sources ; Photometry, RI ; Galaxies, optical Keywords: galaxies: active - galaxies: Seyfert - quasars: general - surveys - X-rays: galaxies Abstract: We present the results of a program to acquire high-quality optical spectra of X-ray sources detected in the Extended-Chandra Deep Field-South (E-CDF-S) and its central 2Ms area. New spectroscopic redshifts, up to z=4, are measured for 283 counterparts to Chandra sources with deep exposures (t 2-9hr per pointing) using multi-slit facilities on both VLT (VIMOS) and Keck (DEIMOS), thus bringing the total number of spectroscopically identified X-ray sources to over 500 in this survey field. Since our new spectroscopic identifications are mainly associated with X-ray sources in the shallower 250ks coverage, we provide a comprehensive catalog of X-ray sources detected in the E-CDF-S including the optical and near-infrared counterparts, determined by a likelihood routine, and redshifts (both spectroscopic and photometric), that incorporate published spectroscopic catalogs, thus resulting in a final sample with a high fraction (80%) of X-ray sources having secure identifications. Our redshift catalog includes 17 type-2 QSOs at 1< z< 3.5. Based on our deepest (9 hr) VLT/VIMOS observation, we identify "elusive" optically faint galaxies (Rmag 25) at z 2-3 based upon the detection of interstellar absorption lines (e.g., OII+SiIV, CII], CIV). Description: We have acquired optical spectra with the VLT, using the Visible Multi-Object Spectrograph (VIMOS) in Oct-Dec 2004, Jan and Oct 2005, Dec 2007 and Jan-Feb 2008. We have carried out two pointings, each with two different setups, in the northern half of the E-CDF-S field. Optical spectra were also obtained in January of 2007, 2008, and 2010 on Keck II with the Deep Imaging Multi-object Spectrograph (DEIMOS).