Gamma-ray astronomy with the imaging atmospheric Cherenkov telescopes in India

VERITAS is an array of 12-m imaging air-Cherenkov telescopes dedicated to gamma-ray astronomy in the 50 GeV - 50 TeV energy band. A prototype telescope was successfully operated between September 2003 and April 2004, yielding detections of the Crab Nebula and Mrk421 blazar. Construction has begun on the full array.

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Highlights of Gamma-ray astronomy with imaging air Cherenkov telescopes

Journal of Physics Conference Series ◽

10.1088/1742-6596/409/1/012011 ◽

2013 ◽

Vol 409 ◽

pp. 012011

Author(s):

Dieter Horns

Keyword(s):

Gamma Ray ◽

Cherenkov Telescopes ◽

Gamma Ray Astronomy

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Gamma-Ray Astronomy with Cherenkov Telescopes

10.1063/1.2125662 ◽

2005 ◽

Cited By ~ 1

Author(s):

A. Stamerra

Keyword(s):

Gamma Ray ◽

Cherenkov Telescopes ◽

Gamma Ray Astronomy

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Gamma ray astronomy with atmospheric Cherenkov telescopes: the future

New Journal of Physics ◽

10.1088/1367-2630/11/11/115008 ◽

2009 ◽

Vol 11 (11) ◽

pp. 115008 ◽

Cited By ~ 3

Author(s):

Frank Krennrich

Keyword(s):

Gamma Ray ◽

Cherenkov Telescopes ◽

Gamma Ray Astronomy ◽

The Future

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RESULTS FROM H.E.S.S.

International Journal of Modern Physics A ◽

10.1142/s0217751x05030685 ◽

2005 ◽

Vol 20 (29) ◽

pp. 7001-7005

Author(s):

◽

GÖTZ HEINZELMANN

Keyword(s):

Supernova Remnant ◽

Gamma Ray ◽

Field Of View ◽

Galactic Centre ◽

Cherenkov Telescopes ◽

Gamma Ray Astronomy ◽

Centre Region ◽

Stereoscopic Observation ◽

Unidentified Source ◽

New Generation

H.E.S.S. is an experiment for ground based GeV/TeV gamma ray astronomy of the new generation. It consists of four large Cherenkov telescopes operating in stereoscopic observation mode. Its construction in Namibia was completed at the end of 2003. Already during the installation phase, exciting results have been achieved, and after completion several discoveries have been made. Some of the results and discoveries are reported, such as the first image of a shell-type supernova remnant resolved at arc minute scale (RXJ 1713 – 3946), the discovery of the unique binary pulsar system PSR B1259 – 63 and of a yet-unidentified source in the same field of view (HESS J1303 – 631), and the observation of the galactic centre region. Amongst the extragalactic sources, the blazers Mkn 421 and PKS 2155 – 304 have also been detected.

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Gamma-ray observations of supernova remnants

Proceedings of the International Astronomical Union ◽

10.1017/s1743921313009605 ◽

2013 ◽

Vol 9 (S296) ◽

pp. 287-294

Author(s):

Marianne Lemoine-Goumard

Keyword(s):

Cosmic Rays ◽

Supernova Remnants ◽

Gamma Ray ◽

Galactic Cosmic Rays ◽

Cherenkov Telescopes ◽

Gamma Ray Astronomy ◽

Morphological Studies ◽

Shell Type ◽

Order Of Magnitude ◽

Gamma Ray Emission

AbstractIn the past few years, gamma-ray astronomy has entered a golden age. At TeV energies, only a handful of sources were known a decade ago, but the current generation of ground-based imaging atmospheric Cherenkov telescopes has increased this number to more than one hundred. At GeV energies, the Fermi Gamma-ray Space Telescope has increased the number of known sources by nearly an order of magnitude in its first 2 years of operation. The recent detection and unprecedented morphological studies of gamma-ray emission from shell-type supernova remnants is of great interest, as these analyses are directly linked to the long standing issue of the origin of the cosmic-rays. However, these detections still do not constitute a conclusive proof that supernova remnants accelerate the bulk of Galactic cosmic-rays, mainly due to the difficulty of disentangling the hadronic and leptonic contributions to the observed gamma-ray emission. In the following, I will review the most relevant results of gamma ray astronomy concerning supernova remnants (shell-type and middle-age interacting with molecular clouds).

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