A VO study of SDSS AGNs with X-ray emission from ROSAT-PSPC pointed observations

Details A VO study of SDSS AGNs with X-ray emission from ROSAT-PSPC pointed observations A VO study of SDSS AGNs with X-ray emission from ROSAT-PSPC pointed observations

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hia....14..581h&link_type=abstract

Highlights of Astronomy, Volume 14, p. 581-581

Astronomy and Astrophysics

Astronomy

Scientific paper

We use VO facilities to study AGNs with X-ray emission. We present a sample of 1744 of Type 1 AGNs from the Sloan Digital Sky Survey Data Release 4 (SDSS DR4) spectroscopic catalog with X-ray counterparts in the White-Giommi-Angelini catalogue (WGACAT) of ROSAT-pspc pointed observations. Of 1744 X-ray sources, 1410 (80.9%) are new AGN identifications. Of 4,574 SDSS DR4 AGNs for which we found radio matches in the catalogue of radio sources from the Faint Images of the Radio Sky at Twenty (FIRST) cm survey, 224 turned up in our sample of SDSS X-ray AGN.

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