A CGRO survey of radio quasars near the South Galactic Pole: First results.

Details A CGRO survey of radio quasars near the South Galactic Pole: First results. A CGRO survey of radio quasars near the South Galactic Pole: First results.

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26as..120c.521v&link_type=abstract

Astronomy and Astrophysics Supplement, v.120, p.521-524

Astronomy and Astrophysics

Astrophysics

2

Gamma Rays: Observations, Galaxies: Active, Bl Lacertae Objects: Individual: Pks 2155-304

Scientific paper

We present the first results from our Cycle 4 program to search for gamma-ray emission from flat-spectrum radio quasars with the EGRET and COMPTEL experiments aboard the Compton Gamma Ray Observatory (CGRO). This program, which was designed to fill in the most severe coverage deficiency in the AGN all-sky survey, has detected several previously unknown gamma-ray sources. Our most exciting new EGRET detection is that of PKS 2155-304, a nearby, bright BL Lac, which is considered by many to be the prototypical X-ray selected BL Lac object. The hardness of the PKS 2155-304 photon spectrum and the proximity of the source (z=0.116) make it an excellent candidate for detection at TeV gamma-ray energies.

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