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2003•Astronomy ReportsRequires access

The characteristics of blazars that are sources of very-high-energy gamma rays

O. Kalekin, Yu. I. Neshpor, A. A. Stepanyan

Open publisher page 2 citations

Abstract

We show that the most probable extragalactic sources of very-high-energy gamma rays are HBL blazars whose peak frequencies are in the X-ray. The detection of very-high-energy gamma rays from the blazar 3C66A, which has a redshift of z =0.44, suggests that the density of the intergalactic infrared background at wavelengths >0.6 µm is lower than estimates published in the literature.

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What this paper is about

We show that the most probable extragalactic sources of very-high-energy gamma rays are HBL blazars whose peak frequencies are in the X-ray. The detection of very-high-energy gamma rays from the blazar 3C66A, which has a redshift of z =0.44, suggests that the density of the intergalactic infrared background at wavelengths >0.6 µm is lower than estimates published in the literature.

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Available abstract

We show that the most probable extragalactic sources of very-high-energy gamma rays are HBL blazars whose peak frequencies are in the X-ray. The detection of very-high-energy gamma rays from the blazar 3C66A, which has a redshift of z =0.44, suggests that the density of the intergalactic infrared background at wavelengths >0.6 µm is lower than estimates published in the literature.

Key concepts: Blazar, Physics, Astrophysics, Gamma ray, Redshift, Intergalactic travel, Extragalactic background light, High energy

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