Millisecond Pulsar Population in the Galactic Center and High Energy Contributions
Abstract
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 possible TeV photons detected by HESS toward the Galactic center.
- Publication:
-
Chinese Journal of Astronomy and Astrophysics Supplement
- Pub Date:
- December 2006
- DOI:
- 10.48550/arXiv.astro-ph/0510461
- arXiv:
- arXiv:astro-ph/0510461
- Bibcode:
- 2006ChJAS...6b.268W
- Keywords:
-
- Galaxy: center;
- Gamma-rays: theory;
- X-rays: stars;
- pulsars: general;
- radiation mechanisms: non-thermal;
- Astrophysics
- E-Print:
- 6 pages, 2 figures, talk at The 2005 Lake Hanas International Pulsar Symposium, Aug 2-7 2005, to be published in ChJAA