ROXA: multi-frequency large sample of blazars (Turriziani+, 2007)

Details ROXA: multi-frequency large sample of blazars (Turriziani+, 2007) ROXA: multi-frequency large sample of blazars (Turriziani+, 2007)

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ycat..34720699t&link_type=abstract

VizieR On-line Data Catalog: J/A+A/472/699. Originally published in: 2007A&A...472..699T

Computer Science

Active Gal. Nuclei, Bl Lac Objects, Qsos

Scientific paper

A list of 816 objects among which 510 are confirmed blazars. The selection method consists in three steps: 1) a first cross-correlation between radio and X-ray surveys (the NRAO VLA Sky Survey, ATCAPMN (ATCA catalogue of compact PMN sources) and ROSAT All Sky Survey; 2) for each radio/X-ray match, optical magnitudes were retrieved from the Guide Star Catalog; 3) for all radio/optical/X-ray matches we calculated the X-ray to optical (alphaox) and radio to optical (alpharo) spectral slopes and took only sources with alphaox and alpharo values within the blazar area. For each object, redshift, B and G magnitudes, radio flux at 1.4GHz and at 5GHz, X-ray flux, FX/Fr ratio, X-ray luminosity, radio luminosity, CaH&K break and classification are given.
(1 data file).

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