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2006

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/45325

Variable Very-High-Energy Gamma-Ray Emission from the Microquasar LS I +61 303

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http://dx.doi.org/10.1126/science.1128177

Abstract

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.

Subject

Quàsars, Estels binaris, Radioastronomia, Raigs còsmics, Jets (Astrofísica), Astronomia de raigs gamma, Astrofísica

Subject (English)

Quasars, Double stars, Radio astronomy, Cosmic rays, Astrophysical jets, Gamma ray astronomy, Astrophysics

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

ALBERT, J., et al. Variable Very-High-Energy Gamma-Ray Emission from the Microquasar LS I +61 303. Science. 2006. Vol. 312, num. 5781, pags. 1771-1773. ISSN 0036-8075. [consulted: 10 of June of 2026]. Available at: https://hdl.handle.net/2445/45325

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