The Making of Catalogues of Very-High-Energy γ-ray Sources

Thirty years after the discovery of the first very-high-energy <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-ray source by the Whipple tel...

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Autor principal:	Mathieu de Naurois
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	very-high-energy γ-ray astronomy atmospheric Cherenkov telescopes source catalogues Elementary particle physics QC793-793.5
Acceso en línea:	https://doaj.org/article/c8975f65eb6d42118777b8613d8cd857
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spelling	oai:doaj.org-article:c8975f65eb6d42118777b8613d8cd8572021-11-25T19:09:38ZThe Making of Catalogues of Very-High-Energy γ-ray Sources10.3390/universe71104212218-1997https://doaj.org/article/c8975f65eb6d42118777b8613d8cd8572021-11-01T00:00:00Zhttps://www.mdpi.com/2218-1997/7/11/421https://doaj.org/toc/2218-1997Thirty years after the discovery of the first very-high-energy <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-ray source by the Whipple telescope, the field experienced a revolution mainly driven by the third generation of imaging atmospheric Cherenkov telescopes (IACTs). The combined use of large mirrors and the invention of the imaging technique at the Whipple telescope, stereoscopic observations, developed by the HEGRA array and the fine-grained camera, pioneered by the CAT telescope, led to a jump by a factor of more than ten in sensitivity. The advent of advanced analysis techniques led to a vast improvement in background rejection, as well as in angular and energy resolutions. Recent instruments already have to deal with a very large amount of data (petabytes), containing a large number of sources often very extended (at least within the Galactic plane) and overlapping each other, and the situation will become even more dramatic with future instruments. The first large catalogues of sources have emerged during the last decade, which required numerous, dedicated observations and developments, but also made the first population studies possible. This paper is an attempt to summarize the evolution of the field towards the building up of the source catalogues, to describe the first population studies already made possible, and to give some perspectives in the context of the upcoming, new generation of instruments.Mathieu de NauroisMDPI AGarticlevery-high-energy γ-ray astronomyatmospheric Cherenkov telescopessource cataloguesElementary particle physicsQC793-793.5ENUniverse, Vol 7, Iss 421, p 421 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	very-high-energy γ-ray astronomy atmospheric Cherenkov telescopes source catalogues Elementary particle physics QC793-793.5
spellingShingle	very-high-energy γ-ray astronomy atmospheric Cherenkov telescopes source catalogues Elementary particle physics QC793-793.5 Mathieu de Naurois The Making of Catalogues of Very-High-Energy γ-ray Sources
description	Thirty years after the discovery of the first very-high-energy <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>γ</mi></semantics></math></inline-formula>-ray source by the Whipple telescope, the field experienced a revolution mainly driven by the third generation of imaging atmospheric Cherenkov telescopes (IACTs). The combined use of large mirrors and the invention of the imaging technique at the Whipple telescope, stereoscopic observations, developed by the HEGRA array and the fine-grained camera, pioneered by the CAT telescope, led to a jump by a factor of more than ten in sensitivity. The advent of advanced analysis techniques led to a vast improvement in background rejection, as well as in angular and energy resolutions. Recent instruments already have to deal with a very large amount of data (petabytes), containing a large number of sources often very extended (at least within the Galactic plane) and overlapping each other, and the situation will become even more dramatic with future instruments. The first large catalogues of sources have emerged during the last decade, which required numerous, dedicated observations and developments, but also made the first population studies possible. This paper is an attempt to summarize the evolution of the field towards the building up of the source catalogues, to describe the first population studies already made possible, and to give some perspectives in the context of the upcoming, new generation of instruments.
format	article
author	Mathieu de Naurois
author_facet	Mathieu de Naurois
author_sort	Mathieu de Naurois
title	The Making of Catalogues of Very-High-Energy γ-ray Sources
title_short	The Making of Catalogues of Very-High-Energy γ-ray Sources
title_full	The Making of Catalogues of Very-High-Energy γ-ray Sources
title_fullStr	The Making of Catalogues of Very-High-Energy γ-ray Sources
title_full_unstemmed	The Making of Catalogues of Very-High-Energy γ-ray Sources
title_sort	making of catalogues of very-high-energy γ-ray sources
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c8975f65eb6d42118777b8613d8cd857
work_keys_str_mv	AT mathieudenaurois themakingofcataloguesofveryhighenergygraysources AT mathieudenaurois makingofcataloguesofveryhighenergygraysources
_version_	1718410241967652864

The Making of Catalogues of Very-High-Energy γ-ray Sources

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