Microquasars are binary star systems with relativistic radio-emitting jets. They are potential sources of cosmic rays and can be used to elucidate the physics of relativistic jets. We report the detection of variable gamma-ray emission above 100 gigaelectron volts from the microquasar LS I 61 + 303. Six orbital cycles were recorded. Several detections occur at a similar orbital phase, which suggests that the emission is periodic. The strongest gamma-ray emission is not observed when the two stars are closest to one another, implying a strong orbital modulation of the emission or absorption processes.
Notas
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Información general
Fecha de publicación:junio 2006
Idioma del documento:Inglés
Revista:Science; vol. 312, no. 5781
Institución de origen:Facultad de Ciencias Astronómicas y Geofísicas; Instituto Argentino de Radioastronomía
Otros Identificadores:arXiv:astro-ph/0605549v1pmid:16709745
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