Millisecond pulsar population in the Galactic center and high energy contributions

Wei Wang

(1) National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 Max-Planck-Institut für extraterrestrische Physik, Postfach 1312, 85741 Garching, Germany

Paper: ChJAA 2006 in press

EPrint Server: astro-ph/0510461


We propose that there possibly exists a population of millisecond pulsars in the Galactic center region. Millisecond pulsars (MSPs) could emit GeV gamma-rays through synchrotron-curvature radiation as predicted by outer gap models. In the same time, the compact wind nebulae around millisecond pulsars can emit X-rays though synchrotron radiation and TeV photons through inverse Compton processes. Besides, millisecond pulsar winds provide good candidates for the electron-positrons sources in the Galactic center. Therefore, we suggest that the millisecond pulsar population could contribute to the weak unidentified Chandra X-ray sources, the diffuse gamma-rays detected by EGRET, electron-positron annihilation lines and TeV photons detected by HESS toward the Galactic center.

Preprints available from the authors at , or the raw TeX (no figures) if you click here.

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