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• W2069722732 abstract "We report the discovery of three pulsars whose large dispersion measures (DMs) and angular proximity to Sgr A* indicate the existence of a Galactic center population of neutron stars. The relatively long periods (0.98–1.48 s) most likely reflect strong selection against short-period pulsars from radio-wave scattering at the observation frequency of 2 GHz used in our survey with the Green Bank Telescope. One object (PSR J1746−2850I) has a characteristic spindown age of only 13 kyr along with a high surface magnetic field ∼4 × 1013 G. It and a second object found in the same telescope pointing, PSR J1746−2850II (which has the highest known DM among pulsars), may have originated from recent star formation in the Arches or Quintuplet clusters given their angular locations. Along with a third object, PSR J1745−2910, and two similar high-dispersion, long-period pulsars reported by Johnston et al., the five objects found so far are 10–15 arcmin from Sgr A*, consistent with there being a large pulsar population in the Galactic center, most of whose members are undetectable in relatively low-frequency surveys because of pulse broadening from the same scattering volume that angularly broadens Sgr A* and OH/IR masers." @default.
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• W2069722732 date "2009-08-24" @default.
• W2069722732 modified "2023-10-16" @default.
• W2069722732 title "DISCOVERY OF THREE PULSARS FROM A GALACTIC CENTER PULSAR POPULATION" @default.
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• W2069722732 doi "https://doi.org/10.1088/0004-637x/702/2/l177" @default.
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