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The Nature of Unidentified Galactic High-Energy Gamma-Ray Sources pp 263–270Cite as

Microquasars and Unidentified Egret Sources: The Case of LS 5039

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Part of the book series: Astrophysics and Space Science Library ((ASSL,volume 267))

Abstract

LS 5039 is a massive X-ray binary with persistent radio emission at a distance of 3 kpc. Recent high resolution radio observations with the VLBA show that LS 5039 is resolved into bipolar jets emanating from a central core, revealing its microquasar nature. This system also appears to be associated with the EGRET source 3EG J1824-1514. The association with the γ-ray source is further supported by LS 5039 being the only X-ray and radio source within the EGRET 95% confidence contour.

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Author information

Authors and Affiliations

  1. Max Planck Institut für Radioastronomie, Auf dem Hügel 69, D-53121, Bonn, Germany

    Maria Massi

  2. Departament d’Astronomia i Meteorologia, Universitat de Barcelona Av, Diagonal 647, E-08028, Barcelona, Spain

    Josep M. Paredes & Marc Ribó

  3. Departamento de Física, Universidad de Jaén, Calle Virgen de la Cabeza 2, E-23071, Jaén, Spain

    Josep Martí

Authors
  1. Josep M. Paredes
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  2. Josep Martí
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  3. Marc Ribó
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  4. Maria Massi
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Editor information

Editors and Affiliations

  1. Instituto Nacional de Astrofísica, Óptica y Electrónica, Tonantzintla, México

    Alberto Carramiñana  & Olaf Reimer  & 

  2. NASA/Goddard Space Flight Center, Maryland, USA

    David J. Thompson

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© 2001 Springer Science+Business Media Dordrecht

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Paredes, J.M., Martí, J., Ribó, M., Massi, M. (2001). Microquasars and Unidentified Egret Sources: The Case of LS 5039. In: Carramiñana, A., Reimer, O., Thompson, D.J. (eds) The Nature of Unidentified Galactic High-Energy Gamma-Ray Sources. Astrophysics and Space Science Library, vol 267. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-1007-8_19

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  • DOI: https://doi.org/10.1007/978-94-010-1007-8_19

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-3875-1

  • Online ISBN: 978-94-010-1007-8

  • eBook Packages: Springer Book Archive

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