Hadronic High‐Energy Gamma‐Ray Emission from the Microquasar LS I +61 303 | Zendy

Gustavo E. Romero | Zendy; H. R. Christiansen | Zendy; M. Orellana | Zendy

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Hadronic High‐Energy Gamma‐Ray Emission from the Microquasar LS I +61 303

Author(s) -

Gustavo E. Romero,

H. R. Christiansen,

M. Orellana

Publication year - 2005

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/444446

Subject(s) - physics , gamma ray , hadron , astrophysics , energy (signal processing) , astronomy , nuclear physics , quantum mechanics

We present a hadronic model for gamma-ray production in the microquasar LS I$+61 303$. The system is formed by a neutron star that accretes matter from thedense and slow equatorial wind of the Be primary star. We calculate thegamma-ray emission originated in $pp$ interactions between relativistic protonsin the jet and cold protons from the wind. After taking into account opacityeffects on the gamma-rays introduced by the different photons fields, wepresent high-energy spectral predictions that can be tested with the newgeneration Cherenkov telescope MAGIC.Comment: 18 pages,5 figures. Accepted for publication in Astrophysical Journa

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