Discovery and characterization of the binary system LSI +61303 in very high energy gamma-rays with MAGIC
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چکیده
6 VHE spectral and temporal properties of LSI +61 • 303 97 6.
منابع مشابه
Propagation of very high energy gamma - rays inside massive binaries LS 5039 and LSI + 61 o 303
Two massive binary systems of the microquasar type, LS 5039 and LSI +61 o 303, have been suggested as possible counterparts of EGRET sources. LS 5039 has been also recently detected in TeV gamma-rays. Since the massive stars in these binary systems are very luminous, it is expected that high energy gamma-rays, if injected relatively close to the massive stars, should be strongly absorbed, initi...
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We explore the possible association between the microquasar LSI +61303 and the EGRET source 2CG 135+01/3EG J0241+6103 by studying, with a detailed numerical model, whether this system can produce the emission and the variability detected by EGRET (>100 MeV) through inverse Compton (IC) scattering. Our numerical approach considers a population of relativistic electrons entrained in a cylindrical...
متن کاملSuper-orbital variability of LS I +61303 at TeV energies
Context. The gamma-ray binary LS I +61303 is a well-established source from centimeter radio up to very high energy (VHE; E > 100 GeV). The broadband emission shows a periodicity of ∼26.5 days, coincident with the orbital period. A longer (super-orbital) period of 1667 ± 8 days was proposed from radio variability and confirmed using optical and high-energy (HE; E ¿ 100 MeV) gamma-ray observatio...
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This Letter presents the first results from the observations of LS I +61303 using Large Area Telescope data from the Fermi Gamma-Ray Space Telescope between 2008 August and 2009 March. Our results indicate variability that is consistent with the binary period, with the emission being modulated at 26.6±0.5 days. This constitutes the first detection of orbital periodicity in high-energy gamma ray...
متن کاملObservation of Galactic Sources of Very High Energy Γ-rays with the Magic Telescope
During its first cycle of observations, the MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov) telescope has observed very high energy γ-rays from fife galactic objects: the Crab Nebula, the SNRs HESS J1813-178 and HESS J1834-087, the Galactic Center and the γ-ray binary LS I +61 303. After a short introduction to the MAGIC telescope and the data analysis procedure, the results of these fife...
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تاریخ انتشار 2008