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Gamma-rays from millisecond pulsars in Globular Clusters

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High-Energy Emission from Pulsars and their Systems

Part of the book series: Astrophysics and Space Science Proceedings ((ASSSP))

Abstract

Globular clusters (GCs) with their ages of the order of several billion years contain many final products of evolution of stars such as: neutron stars, white dwarfs and probably also black holes. These compact objects can be at present responsible for the acceleration of particles to relativistic energies. Therefore, γ-ray emission is expected from GCs as a result of radiation processes occurring either in the inner magnetosperes of millisecond pulsars or in the vicinity of accreting neutron stars and white dwarfs or as a result of interaction of particles leaving the compact objects with the strong radiation field within the GC. Recently, GeV γ-ray emission has been detected from several GCs by the new satellite observatory Fermi. Also Cherenkov telescopes reported interesting upper limits at the TeV energies which start to constrain the content of GCs. We review the results of these γ-ray observations in the context of recent scenarios for their origin.

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Author information

Authors and Affiliations

  1. Department of Astrophysics, University of Łódź, ul. Pomorska 149/153, 90-236, Łódź, Poland

    Włodek Bednarek

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  1. Włodek Bednarek
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Correspondence to Włodek Bednarek .

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Editors and Affiliations

  1. Inst. Ciències de l'Espai, CSIC Bellaterra, Campus UAB, Bellaterra, 08193, Spain

    Diego F. Torres

  2. Inst. Ciències de l'Espai, CSIC Bellaterra, Campus UAB, Bellaterra, 08193, Spain

    Nanda Rea

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Bednarek, W. (2011). Gamma-rays from millisecond pulsars in Globular Clusters. In: Torres, D., Rea, N. (eds) High-Energy Emission from Pulsars and their Systems. Astrophysics and Space Science Proceedings. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17251-9_15

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  • DOI: https://doi.org/10.1007/978-3-642-17251-9_15

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