Radio Searches of Fermi LAT Sources and Blind Search Pulsars: The Fermi Pulsar Search Consortium

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Abstract

We present a summary of the Fermi Pulsar Search Consortium (PSC), aninternational collaboration of radio astronomers and members of theLarge Area Telescope (LAT) collaboration, whose goal is to organizeradio follow-up observations of Fermi pulsars and pulsar candidatesamong the LAT gamma-ray source population. The PSC includes pulsarobservers with expertise using the world's largest radio telescopes thattogether cover the full sky. We have performed very deep observations ofall 35 pulsars discovered in blind frequency searches of the LAT data,resulting in the discovery of radio pulsations from four of them. Wehave also searched over 300 LAT gamma-ray sources that do not havestrong associations with known gamma-ray emitting source classes andhave pulsar-like spectra and variability characteristics. These searcheshave led to the discovery of a total of 43 new radio millisecond pulsars(MSPs) and four normal pulsars. These discoveries greatly increase theknown population of MSPs in the Galactic disk, more than double theknown population of so-called `black widow' pulsars, and contain manypromising candidates for inclusion in pulsar timing arrays.

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Astrophysics - High Energy Astrophysical Phenomena

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