Possible New X-Ray-selected EGRET Identifications

Details Possible New X-Ray-selected EGRET Identifications Possible New X-Ray-selected EGRET Identifications

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...516..141p&link_type=abstract

The Astrophysical Journal, Volume 516, Issue 1, pp. 141-144.

Astronomy and Astrophysics

Astronomy

8

Galaxies: Bl Lacertae Objects: General, Gamma Rays: Observations, X-Rays: Galaxies

Scientific paper

This paper selects potential EGRET (high-energy gamma-ray) identifications from a catalog of radio sources with strong X-ray emission (ROSAT/Greenbank, RGB catalog). In particular, we look for weak to moderate radio sources with strong X-ray emission. Such a search is designed to locate high-frequency peaked BL Lacertae objects (HBLs) and intermediate-frequency peaked BL Lacertae objects (IBLs), as well as Galactic magnetized black holes, all of which have been argued in the literature to harbor relativistic jets capable of high-energy gamma-ray emission. We find three new HBL/IBL BL Lacertae identifications (and one marginal IBL BL Lacertae identification), one compact Galactic object (possibly a magnetized black hole), and three other radio sources of unknown identity.

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