Discovery of Nine Gamma-Ray Pulsars in Fermi-LAT Data Using a New Blind Search Method
作者： C. Aulbert , R. P. Eatough , M. Razzano , F. Camilo , H. J. Pletsch
DOI: 10.1088/0004-637X/744/2/105
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摘要: We report the discovery of nine previously unknown gamma-ray pulsars in a blind search data from Fermi Large Area Telescope (LAT). The were found with novel hierarchical method originally developed for detecting continuous gravitational waves rapidly rotating neutron stars. Designed to find isolated spinning at up kHz frequencies, new is computationally efficient, and incorporates several advances, including metric-based gridding parameter space (frequency, frequency derivative sky location) use photon probability weights. have spin frequencies between 3 12 Hz, characteristic ages ranging 17 kyr Myr. Two them, PSRs J1803-2149 J2111+4606, are young energetic Galactic-plane (spin-down power above 6e35 erg/s below 100 kyr). seven remaining pulsars, J0106+4855, J0622+3749, J1620-4927, J1746-3239, J2028+3332, J2030+4415, J2139+4716, older less energetic; two them located higher Galactic latitudes (|b| > 10 deg). PSR J0106+4855 has largest age (3 Myr) smallest surface magnetic field (2e11 G) all LAT blind-search pulsars. J2139+4716 lowest spin-down (3e33 erg/s) among non-recycled ever found. Despite extensive multi-frequency observations, only detectable pulsations radio band. other eight belong increasing population radio-quiet
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