Gamma-rays and neutrinos from accreating neutron stars
| العنوان: | Gamma-rays and neutrinos from accreating neutron stars |
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| المؤلفون: | Włodek Bednarek |
| المصدر: | Proceedings of the International Astronomical Union. 6:305-306 |
| بيانات النشر: | Cambridge University Press (CUP), 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Physics, Astrophysics::High Energy Astrophysical Phenomena, X-ray binary, Gamma ray, Astronomy and Astrophysics, Astrophysics, Accretion (astrophysics), Synchrotron, Spectral line, law.invention, Particle acceleration, Neutron star, Space and Planetary Science, law, Neutrino |
| الوصف: | The matter from a star can be partially captured by a companion neutron star (NS) creating a very turbulent and magnetized transition region at some distanc e from the NS surface. We consider the consequences of particle acceleration at such transition r egion. Accelerated electrons lose energy on the synchrotron process and the inverse Compton (IC) scattering of thermal radiation from the NS surface and/or the companion star. We calculate the synchrotron spectra (from X-rays to soft γ-rays) and γ-ray IC spectra in the case of sources accreting the matter un der the accretor and propeller scenarios. Depending on the accretion stage, the GeV and/or the TeV γ-ray emission can be produced. The model can explain the TeV γ-ray emission from recently discovered massive binary system (LSI 303 +61). Moreover, it predicts GeV γ-ray fluxes from some compact X-ray binary systems detectable by the Fermi-LAT telescope. Hadrons accelerated in such scenario can interact with the radiation from the NS surface producing γ-rays and neutrinos. We estimate the expected neutrino fluxes from some example binary systems in terms of this model which might be observable by the IceCube neutrino telescope. |
| تدمد: | 1743-9221 1743-9213 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::03ca49dcfb786c0efcafd8b3064c9dcf https://doi.org/10.1017/s1743921310016224 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........03ca49dcfb786c0efcafd8b3064c9dcf |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17439221 17439213 |
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