FIVE NEW MILLISECOND PULSARS FROM A RADIO SURVEY OF 14 UNIDENTIFIED FERMI-LAT GAMMA-RAY SOURCES

Kerr, M; Camilo, F; Johnson, T J; Ferrara, E C; Harding, A K; Guillemot, L; Kramer, M; Hessels, J; Johnston, S; Keith, M; Reynolds, J E; Ransom, S M; Ray, P S; Wood, K S; Sarkissian, J

doi:10.1088/2041-8205/748/1/L2

Title: FIVE NEW MILLISECOND PULSARS FROM A RADIO SURVEY OF 14 UNIDENTIFIED FERMI-LAT GAMMA-RAY SOURCES

Journal Article · Tue Mar 20 00:00:00 EDT 2012 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/748/1/L2· OSTI ID:22047975

Kerr, M ^[1]; Camilo, F ^[2]; Johnson, T J ^[3]; Ferrara, E C; Harding, A K ^[4]; Guillemot, L; Kramer, M ^[5]; Hessels, J ^[6]; Johnston, S; Keith, M; Reynolds, J E ^[7]; Ransom, S M ^[8]; Ray, P S; Wood, K S ^[9]; Sarkissian, J ^[10]

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)
Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States)
National Academy of Sciences, Washington, DC 20001 (United States)
NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, 53121 Bonn (Germany)
Netherlands Institute for Radio Astronomy (ASTRON), Postbus 2, 7990 AA Dwingeloo (Netherlands)
CSIRO Astronomy and Space Science, Australia Telescope National Facility, Epping, NSW 1710 (Australia)
National Radio Astronomy Observatory (NRAO), Charlottesville, VA 22903 (United States)
Space Science Division, Naval Research Laboratory, Washington, DC 20375-5352 (United States)
CSIRO Parkes Observatory, Parkes, NSW 2870 (Australia)

We have discovered five millisecond pulsars (MSPs) in a survey of 14 unidentified Fermi Large Area Telescope sources in the southern sky using the Parkes radio telescope. PSRs J0101-6422, J1514-4946, and J1902-5105 reside in binaries, while PSRs J1658-5324 and J1747-4036 are isolated. Using an ephemeris derived from timing observations of PSR J0101-6422 (P = 2.57 ms, DM = 12 pc cm{sup -3}), we have detected {gamma}-ray pulsations and measured its proper motion. Its {gamma}-ray spectrum (a power law of {Gamma} = 0.9 with a cutoff at 1.6 GeV) and efficiency are typical of other MSPs, but its radio and {gamma}-ray light curves challenge simple geometric models of emission. The high success rate of this survey-enabled by selecting {gamma}-ray sources based on their detailed spectral characteristics-and other similarly successful searches indicate that a substantial fraction of the local population of MSPs may soon be known.

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OSTI ID:: 22047975

Journal Information:: Astrophysical Journal Letters, Vol. 748, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 2041-8205

Country of Publication:: United States

Language:: English

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Title: FIVE NEW MILLISECOND PULSARS FROM A RADIO SURVEY OF 14 UNIDENTIFIED FERMI-LAT GAMMA-RAY SOURCES

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