The consistency of Fermi-LAT observations of the galactic center with a millisecond pulsar population in the central stellar cluster
Abstract
I show that the spectrum and morphology of a recent Fermi-LAT observation of the Galaxy center are consistent with a millisecond pulsar population in the nuclear Central stellar cluster of the Milky Way. The Galaxy Center gamma-ray spectrum is consistent with the spectrum of four of eight globular clusters that have been detected in the gamma-ray. A dark matter annihilation interpretation cannot be ruled out, though no unique features exist that would require this conclusion.
- Publication:
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Journal of Cosmology and Astroparticle Physics
- Pub Date:
- March 2011
- DOI:
- 10.1088/1475-7516/2011/03/010
- arXiv:
- arXiv:1011.4275
- Bibcode:
- 2011JCAP...03..010A
- Keywords:
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- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Cosmology and Nongalactic Astrophysics;
- Astrophysics - Astrophysics of Galaxies;
- High Energy Physics - Phenomenology
- E-Print:
- 5 pages, 1 figure