Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-10-05
Astrophys.SpaceSci.309:253-259,2007
Astronomy and Astrophysics
Astrophysics
Proceeding of "The multi messenger approach to high energy gamma ray sources", Barcelona, June 2006
Scientific paper
10.1007/s10509-007-9454-3
We discuss the implications of the recent X-ray and TeV gamma-ray observations of the PSR B1259-63 system (a young rotation powered pulsar orbiting a Be star) for the theoretical models of interaction of pulsar and stellar winds. We show that previously considered models in which the pulsar wind is purely electron loaded have problems to account for the observed behaviour of the system in the TeV and X-ray bands. We develop a model in which the broad band (radio, X-ray and high energy gamma-ray) emission from the binary system is produced in result of collisions of GeV-TeV energy protons accelerated by the pulsar wind and interacting with the stellar disk. In this model the high energy gamma-rays are produced in the decays of secondary neutral pions, while radio and X-ray emission are synchrotron and inverse Compton emission produced by low-energy (< 100 MeV) electrons from the decays of secondary charged pi mesons. This model can explain not only the observed energy spectra, but also the correlations between TeV, X-ray and radio emission components.
Chernyakova Maria
Neronov Andrey
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