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 LSI+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.

J., A., E., A., H., A., P., A., A., A., M., A., et al. (2006). Variable very-high-energy gamma-ray emission from the microquasar LS I +61 303. SCIENCE, 312(5781), 1771-1773 [10.1126/science.1128177].

Variable very-high-energy gamma-ray emission from the microquasar LS I +61 303

PAOLETTI, RICCARDO;STAMERRA, ANTONIO;
2006-01-01

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 LSI+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.
2006
J., A., E., A., H., A., P., A., A., A., M., A., et al. (2006). Variable very-high-energy gamma-ray emission from the microquasar LS I +61 303. SCIENCE, 312(5781), 1771-1773 [10.1126/science.1128177].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/39818
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