Searching For Pulsars Associated With the Fermi GeV Excess

Understand

The Fermi Large Area Telescope has detected an extended region of GeV emission toward the Galactic Center that is currently thought to be powered by dark matter annihilation or a population of young and/or millisecond pulsars.

• In a test of the pulsar hypothesis, we have carried out an initial search of a 20 deg**2 area centered on the peak of the galactic center GeV excess.
• Candidate pulsars were identified as a compact, steep spectrum continuum radio source on interferometric images and followed with targeted single-dish pulsation searches.
• We report the discovery of the recycled pulsar PSR 1751-2737 with a spin period of 2.23 ms.