SIMBAD references

2015ApJ...808...74L - Astrophys. J., 808, 74 (2015/July-3)

Discovery of γ-ray emission from the strongly lobe-dominated quasar 3C 275.1.

LIAO N.-H., XIN Y.-L., LI S., JIANG W., LIANG Y.-F., LI X., ZHANG P.-F., CHEN L., BAI J.-M. and FAN Y.-Z.

Abstract (from CDS):

We systematically analyze the 6 year Fermi/Large Area Telescope (LAT) data on lobe-dominated quasars (LDQs) in the complete LDQ sample from the Revised third Cambridge Catalogue of Radio Sources (3CRR) survey and report the discovery of high-energy γ-ray emission from 3C 275.1. The γ-ray emission of 3C 207 is confirmed and significant variability of the light curve is identified. We do not find statistically significant γ-ray emission from other LDQs. 3C 275.1 is the known γ-ray quasar with the lowest core dominance parameter (i.e., R = 0.11). We also show that both the northern radio hotspot and parsec jet models can reasonably reproduce the γ-ray data. The parsec jet model, however, is favored by the potential γ-ray variability on a timescale of months. We suggest that some dimmer γ-ray LDQs will be detected in the future and LDQs could contribute non-ignorably to the extragalactic γ-ray background.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: jets - quasars: individual: 3C 275.1 - radiation mechanisms: non-thermal

Simbad objects: 34

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