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Five New Millisecond Pulsars from a Radio Survey of 14 Unidentified Fermi-LAT Gamma-Ray SourcesWe have discovered five millisecond pulsars (MSPs) in a survey of 14 unidentified Ferm;'LAT 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 JOl01-6422 (P=2.57ms, DH=12pc/cubic cm ), 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.
Document ID
20120011806
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Kerr, M. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Camilo, F. (Columbia Univ. New York, NY, United States)
Johnson, T. J. (National Academy of Sciences - National Research Council Washington, DC, United States)
Ferrara, E. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Guillemot, L. (Max-Planck-Inst. fuer Radioastronomie Bonn, Germany)
Harding, A. K. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hessels, J. (Foundation for Astronomical Research in the Netherlands Amsterdam, Netherlands)
Johnson, S. (Commonwealth Scientific and Industrial Research Organization Epping, Australia)
Keith, M. (Commonwealth Scientific and Industrial Research Organization Epping, Australia)
Kramer, M. (Manchester Univ. United Kingdom)
Ransom, S. M. (National Radio Astronomy Observatory Charlottesville, VA, United States)
Ray, P. S. (Naval Research Lab. Washington, DC, United States)
Reynolds, J. E. (Commonwealth Scientific and Industrial Research Organization Epping, Australia)
Sarkissian, J. (Commonwealth Scientific and Industrial Research Organization Australia)
Wood, K. S. (Naval Research Lab. Washington, DC, United States)
Date Acquired
August 26, 2013
Publication Date
January 1, 2012
Subject Category
Astronomy
Report/Patent Number
GSFC.JA.01107.2012
Funding Number(s)
CONTRACT_GRANT: NAS8-03060
Distribution Limits
Public
Copyright
Public Use Permitted.

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