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Dark matter vs. Pulsars: Catching the impostor
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Evidence of excess GeV emission nearly coinciding with the Galactic Centre has been interpreted as a possible signature of annihilating dark matter. In this paper, we argue that it seems too early to discard pulsars as a viable explanation for the observed excess. On the heels of the recently released Second Fermi LAT Pulsar Catalogue (2FPC), it is still possible that a population of hard (Gamma < 1) millisecond pulsars (MSPs) either endemic to the innermost region or part of a larger nascent collection of hard MSPs that appears to be emerging in the 2FPC could explain the GeV excess near the Galactic Centre.
Forward citations
Cited by 2 Pith papers
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Characterizing the Nature of the Unresolved Point Sources in the Galactic Center
The failure of NPTF to recover injected dark matter signals can be a natural consequence of unresolved point sources and diffuse background mismodeling, so it does not by itself invalidate the NPTF point-source interp...
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Thermal emission from dark matter-heated neutron stars in the Galactic Center
DM-heated neutron stars in the Galactic Center reach equilibrium temperatures of 10^4-10^6 K but their emission is below detection thresholds due to extinction.
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