X-ray sources< 1 degree from Seyfert galaxies

نویسنده

  • H.-D. Radecke
چکیده

Archived PSPC observations of 26 Seyfert galaxies have been analyzed for brightX-ray sources out to the full extent of the field (< about 50′). Of all Seyferts known this represents a sample 88% complete to BT = 10 mag, 74% complete to 11 mag and 50% complete to 12 mag. Using the same reduction algorithm, 14 fields centered on stars at high galactic latitudes have been used as control fields. Excluding the two brightest Seyferts, a subset of 24 Seyferts with corrected apparent magnitude between 8.04 < B T < 12.90 mag show a minimum excess of 46 bright X-ray sources generally distributed between 10 and 25′ from the target galaxy. The significances of association of these sources with the Seyferts in the median brightness range are as high as 7.4 sigma.

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تاریخ انتشار 1996