Astroparticle Physics with Compact Objects

Probing the existence of hypothetical particles beyond the Standard model often deals with extreme parameters: large energies, tiny cross-sections, large time scales, etc. Sometimes, laboratory experiments can test required regions of parameter space, but more often natural limitations lead to poorl...

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Autores principales:	Peter Tinyakov, Maxim Pshirkov, Sergei Popov
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	dark matter axions neutron stars white dwarfs Elementary particle physics QC793-793.5
Acceso en línea:	https://doaj.org/article/852a5352704a4e008db0f04000635542
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spelling	oai:doaj.org-article:852a5352704a4e008db0f040006355422021-11-25T19:09:28ZAstroparticle Physics with Compact Objects10.3390/universe71104012218-1997https://doaj.org/article/852a5352704a4e008db0f040006355422021-10-01T00:00:00Zhttps://www.mdpi.com/2218-1997/7/11/401https://doaj.org/toc/2218-1997Probing the existence of hypothetical particles beyond the Standard model often deals with extreme parameters: large energies, tiny cross-sections, large time scales, etc. Sometimes, laboratory experiments can test required regions of parameter space, but more often natural limitations lead to poorly restrictive upper limits. In such cases, astrophysical studies can help to expand the range of values significantly. Among astronomical sources, used in interests of fundamental physics, compact objects—neutron stars and white dwarfs—play a leading role. We review several aspects of astroparticle physics studies related to observations and properties of these celestial bodies. Dark matter particles can be collected inside compact objects resulting in additional heating or collapse. We summarize regimes and rates of particle capturing as well as possible astrophysical consequences. Then, we focus on a particular type of hypothetical particles—axions. Their existence can be uncovered due to observations of emission originated due to the Primakoff process in magnetospheres of neutron stars or white dwarfs. Alternatively, they can contribute to the cooling of these compact objects. We present results in these areas, including upper limits based on recent observations.Peter TinyakovMaxim PshirkovSergei PopovMDPI AGarticledark matteraxionsneutron starswhite dwarfsElementary particle physicsQC793-793.5ENUniverse, Vol 7, Iss 401, p 401 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	dark matter axions neutron stars white dwarfs Elementary particle physics QC793-793.5
spellingShingle	dark matter axions neutron stars white dwarfs Elementary particle physics QC793-793.5 Peter Tinyakov Maxim Pshirkov Sergei Popov Astroparticle Physics with Compact Objects
description	Probing the existence of hypothetical particles beyond the Standard model often deals with extreme parameters: large energies, tiny cross-sections, large time scales, etc. Sometimes, laboratory experiments can test required regions of parameter space, but more often natural limitations lead to poorly restrictive upper limits. In such cases, astrophysical studies can help to expand the range of values significantly. Among astronomical sources, used in interests of fundamental physics, compact objects—neutron stars and white dwarfs—play a leading role. We review several aspects of astroparticle physics studies related to observations and properties of these celestial bodies. Dark matter particles can be collected inside compact objects resulting in additional heating or collapse. We summarize regimes and rates of particle capturing as well as possible astrophysical consequences. Then, we focus on a particular type of hypothetical particles—axions. Their existence can be uncovered due to observations of emission originated due to the Primakoff process in magnetospheres of neutron stars or white dwarfs. Alternatively, they can contribute to the cooling of these compact objects. We present results in these areas, including upper limits based on recent observations.
format	article
author	Peter Tinyakov Maxim Pshirkov Sergei Popov
author_facet	Peter Tinyakov Maxim Pshirkov Sergei Popov
author_sort	Peter Tinyakov
title	Astroparticle Physics with Compact Objects
title_short	Astroparticle Physics with Compact Objects
title_full	Astroparticle Physics with Compact Objects
title_fullStr	Astroparticle Physics with Compact Objects
title_full_unstemmed	Astroparticle Physics with Compact Objects
title_sort	astroparticle physics with compact objects
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/852a5352704a4e008db0f04000635542
work_keys_str_mv	AT petertinyakov astroparticlephysicswithcompactobjects AT maximpshirkov astroparticlephysicswithcompactobjects AT sergeipopov astroparticlephysicswithcompactobjects
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Astroparticle Physics with Compact Objects

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