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First bounds on the high-energy emission from isolated Wolf-Rayet binary systems



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Antoranz Canales, Pedro y Barrio Uña, Juan Abel y Contreras González, José Luis y Fonseca González, Mª Victoria y Miranda Pantoja, José Miguel y Nieto, Daniel (2008) First bounds on the high-energy emission from isolated Wolf-Rayet binary systems. Astrophysical journal letters, 685 (1). L71-L74. ISSN 2041-8205

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URL Oficial: http://dx.doi.org/10.1086/592433


High-energy gamma-ray emission is theoretically expected to arise in tight binary star systems (with high mass loss and high-velocity winds), although the evidence of this relationship has proven to be elusive so far. Here we present the first bounds on this putative emission from isolated Wolf-Rayet (WR) star binaries, WR 147 and WR 146, obtained from observations with the MAGIC telescope.

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© The American Astronomical Society. We acknowledge A. Reimer for providing us the theoretical curves depicted in Figure 1. We also would like to thank the Instituto de Astrofisica de Canarias for the excellent working conditions at the Observatorio del Roque de los Muchachos in La Palma. The support of the German BMBF and MPG, Italian INFN, and Spanish CICYT is gratefully acknowledged. This work was also supported by ETH research grant TH 34/043, by the Polish MNiSzW grant N N203 390834, and by the YIP of the Helmholtz Gemeinschaft.

Palabras clave:Colliding-Wind Binary, Source TEV J2032+4130, X-Ray, Gamma-Rays, Follow-Up, WR 146, Radio, WR-147, LS-I-+61-303, Parameters.
Materias:Ciencias > Física > Electrónica
Ciencias > Física > Electricidad
Ciencias > Física > Física nuclear
Código ID:23103
Depositado:11 Oct 2013 11:58
Última Modificación:25 Feb 2015 10:42

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