THREE MILLISECOND PULSARS IN FERMI LAT UNASSOCIATED BRIGHT SOURCES

Ransom, S M; Ray, P S; Wolff, M T; Grove, J E; Camilo, F; Roberts, M S. E.; Celik, Oe; DeCesar, M E; Ferrara, E C; Gehrels, N; Cheung, C C; Abdo, A A; Kerr, M; Pennucci, T; Cognard, I; Lyne, A G; Stappers, B W; Freire, P C. C.; Desvignes, G; Donato, D

doi:10.1088/2041-8205/727/1/L16

Title: THREE MILLISECOND PULSARS IN FERMI LAT UNASSOCIATED BRIGHT SOURCES

Journal Article · Thu Jan 20 00:00:00 EST 2011 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/727/1/L16· OSTI ID:21560563

Ransom, S M ^[1]; Ray, P S; Wolff, M T; Grove, J E ^[2]; Camilo, F ^[3]; Roberts, M S. E. ^[4]; Celik, Oe; DeCesar, M E; Ferrara, E C; Gehrels, N ^[5]; Cheung, C C; Abdo, A A ^[6]; Kerr, M ^[7]; Pennucci, T ^[8]; Cognard, I ^[9]; Lyne, A G; Stappers, B W ^[10]; Freire, P C. C. ^[11]; Desvignes, G ^[12]; Donato, D ^[13]

National Radio Astronomy Observatory (NRAO), Charlottesville, VA 22903 (United States)
Space Science Division, Naval Research Laboratory, Washington, DC 20375 (United States)
Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States)
Eureka Scientific, Oakland, CA 94602 (United States)
NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
National Research Council Research Associate, National Academy of Sciences, Washington, DC 20001 (United States)
W. W. Hansen Experimental Physics Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics and SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94305 (United States)
Department of Astronomy, University of Virginia, Charlottesville, VA 22904 (United States)
Laboratoire de Physique et Chimie de l'Environnement, LPCE UMR 6115 CNRS, F-45071 Orleans Cedex 02, and Station de radioastronomie de Nancay, Observatoire de Paris, CNRS/INSU, F-18330 Nancay (France)
Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, M13 9PL (United Kingdom)
Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, 53121 Bonn (Germany)
Department of Astronomy, University of California, Berkeley, CA 94720-3411 (United States)
Center for Research and Exploration in Space Science and Technology (CRESST) and NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

We searched for radio pulsars in 25 of the non-variable, unassociated sources in the Fermi LAT Bright Source List with the Green Bank Telescope at 820 MHz. We report the discovery of three radio and {gamma}-ray millisecond pulsars (MSPs) from a high Galactic latitude subset of these sources. All of the pulsars are in binary systems, which would have made them virtually impossible to detect in blind {gamma}-ray pulsation searches. They seem to be relatively normal, nearby ({<=}2 kpc) MSPs. These observations, in combination with the Fermi detection of {gamma}-rays from other known radio MSPs, imply that most, if not all, radio MSPs are efficient {gamma}-ray producers. The {gamma}-ray spectra of the pulsars are power law in nature with exponential cutoffs at a few GeV, as has been found with most other pulsars. The MSPs have all been detected as X-ray point sources. Their soft X-ray luminosities of {approx}10{sup 30}-10{sup 31} erg s{sup -1} are typical of the rare radio MSPs seen in X-rays.

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OSTI ID:: 21560563

Journal Information:: Astrophysical Journal Letters, Vol. 727, Issue 1; Other Information: DOI: 10.1088/2041-8205/727/1/L16; ISSN 2041-8205

Country of Publication:: United States

Language:: English

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