1RXS J141128.6+503424 , the SIMBAD biblio

2007AJ....133..313A - Astron. J., 133, 313-329 (2007/January-0)

A large, uniform sample of x-ray-emitting active galactic nuclei from the ROSAT All Sky and Sloan Digital Sky Surveys: the Data Release 5 sample.

ANDERSON S.F., MARGON B., VOGES W., PLOTKIN R.M., SYPHERS D., HAGGARD D., COLLINGE M.J., MEYER J., STRAUSS M.A., AGUEROS M.A., HALL P.B., HOMER L., IVEZIC Z., RICHARDS G.T., RICHMOND M.W., SCHNEIDER D.P., STINSON G., VANDEN BERK D.E. and YORK D.G.

Abstract (from CDS):

We describe further results of a program aimed at yielding ∼104 fully characterized optical identifications of ROSAT X-ray sources. Our program employs X-ray data from the ROSAT All Sky Survey (RASS) and both optical imaging and spectroscopic data from the Sloan Digital Sky Survey (SDSS). RASS/SDSS data from 5740 deg2 of sky spectroscopically covered in SDSS Data Release 5 provide an expanded catalog of 7000 confirmed quasars and other active galactic nuclei (AGNs) that are probable RASS identifications. Again, in our expanded catalog the identifications as X-ray sources are statistically secure, with only a few percent of the SDSS AGNs likely to be randomly superposed on unrelated RASS X-ray sources. Most identifications continue to be quasars and Seyfert 1 galaxies with 15<m<21 and 0.01<z<4, but the total sample size has grown to include very substantial numbers of even quite rare AGNs, e.g., it now includes several hundreds of candidate X-ray-emitting BL Lac objects and narrow-line Seyfert 1 galaxies. In addition to exploring rare subpopulations, such a large total sample may be useful when considering correlations between the X-ray and the optical and may also serve as a resource list from which to select the ``best'' object (e.g., X-ray-brightest AGN of a certain subclass at a preferred redshift or luminosity) for follow-up X-ray spectral or alternate detailed studies.

Abstract Copyright:

Journal keyword(s): Catalogs - Galaxies: Quasars: General - Surveys - X-rays

VizieR on-line data: <Available at CDS (J/AJ/133/313): table1.dat table2.dat table3.dat table4.dat table5.dat table6.dat>

Simbad objects: 7008

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