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Discovery of Radio Pulsations from the X-ray Pulsar JO205+6449 in Supernova Remnant 3C58 with the Green Bank TelescopeWe report the discovery with the 100m Green Bank Telescope of 65 ms radio pulsations from the X-ray pulsar J0205+6449 at the center of supernova remnant 3C58, making this possibly the youngest radio pulsar known. From our observations at frequencies of 820 and 1375 MHz, the free electron column density to USSR J0205+6449 is found to be 140.7 +/- 0.3/cc pc. The barycentric pulsar period P and P(dot) determined from a phase-coherent timing solution are consistent with the values previously measured from X-ray observations. The averaged radio profile of USSR J0205+6449 consists of one sharp pulse of width = 3 ms = 0.05 P. The pulsar is an exceedingly weak radio source, with pulse-averaged flux density in the 1400 MHz band of approximately 45 micro-Jy and a spectral index of approximately -2.1. Its radio luminosity of approximately 0.5 may kpc(exp 2) at 1400 MHz is lower than that of approximately 99% of known pulsar and is the lowest among known young pulsars.
Document ID
20020046689
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Camilo, F. (Columbia Univ. New York, NY United States)
Stairs, I. H. (National Radio Astronomy Observatory Green Bank, WV United States)
Lorimer, D. R. (Manchester Univ. MacClesfield, United Kingdom)
Backer, D. C. (California Univ. Berkeley, CA United States)
Ransom, S. M. (McGill Univ. Montreal, Quebec Canada)
Klein, B. (Max-Planck-Inst. fuer Radioastronomie Bonn, Germany)
Wielebinski, R. (Max-Planck-Inst. fuer Radioastronomie Bonn, Germany)
Kramer, M. (Manchester Univ. MacClesfield, United Kingdom)
McLaughlin, M. A. (Manchester Univ. MacClesfield, United Kingdom)
Arzoumanian, Z. (Universities Space Research Association Greenbelt, MD United States)
White, Nicholas E.
Date Acquired
September 7, 2013
Publication Date
January 1, 2002
Subject Category
Space Radiation
Funding Number(s)
CONTRACT_GRANT: NAG5-9095
CONTRACT_GRANT: NAG5-9950
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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