Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT

Abstract

Pulsars are rapidly-rotating, highly-magnetized neutron stars emitting radiation across the electromagnetic spectrum. Although there are more than 1800 known radio pulsars, until recently, only seven were observed to pulse in gamma rays and these were all discovered at other wavelengths. The Fermi Large Area Telescope makes it possible to pinpoint neutron stars through their gamma-ray pulsations. We report the detection of 16 gamma-ray pulsars in blind frequency searches using the LAT. Most of these pulsars are coincident with previously unidentified gamma-ray sources, and many are associated with supernova remnants. Direct detection of gamma-ray pulsars enables studies of emission mechanisms, population statistics and the energetics of pulsar wind nebulae and supernova remnants.

Corresponding authors: Michael Dormody, Paul S. Ray, Pablo M. Saz Parkinson, Marcus Ziegler

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• Implications of the Cosmic Ray Electron Spectrum and Anisotropy measured with Fermi-LAT
• Fermi Gamma-ray Space Telescope: High-Energy Results from the First Year
• The 2010 May Flaring Episode of Cygnus X-3 in Radio, X-Rays, and γ-Rays
• Multiwavelength properties of a new Geminga-like pulsar: PSR J2021+4026
• Study of the gamma-ray source 1AGL J2022+4032 in the Cygnus Region
• MAGIC Upper Limits for two Milagro-detected, Bright Fermi Sources in the Region of SNR G65.1+0.6