Discovery of a High-Energy Gamma-Ray-Emitting Persistent Microquasar-Reference-Cited by-同舟云学术

Discovery of a High-Energy Gamma-Ray-Emitting Persistent Microquasar

Published:2000-06-30 Issue:5475 Volume:288 Page:2340-2342
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Paredes Josep M.¹,Martı́ Josep²,Ribó Marc¹,Massi Maria³

Affiliation:

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

2. Departamento de Fı́sica, Escuela Politécnica Superior, Universidad de Jaén, Calle Virgen de la Cabeza 2, E-23071 Jaén, Spain.

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

Abstract

Microquasars are stellar x-ray binaries that behave as a scaled-down version of extragalactic quasars. The star LS 5039 is a new microquasar system with apparent persistent ejection of relativistic plasma at a 3-kiloparsec distance from the sun. It may also be associated with a γ-ray source discovered by the Energetic Gamma Ray Experiment Telescope (EGRET) on board the COMPTON–Gamma Ray Observatory satellite. Before the discovery of LS 5039, merely a handful of microquasars had been identified in the Galaxy, and none of them was detected in high-energy γ-rays.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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