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Discovery of Five Recycled Pulsars in a High Galactic Latitude Survey

Jacoby, B. A. and Bailes, M. and Ord, S. M. and Knight, H. S. and Hotan, A. W. (2007) Discovery of Five Recycled Pulsars in a High Galactic Latitude Survey. Astrophysical Journal, 6256 (1). pp. 408-413. ISSN 0004-637X.

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We present five recycled pulsars discovered during a 21 cm survey of approximately 4150 deg^2 between 15° and 30° from the Galactic plane using the Parkes radio telescope. One new pulsar, PSR J1528−3146, has a 61 ms spin period and a massive white dwarf companion. Like many recycled pulsars with heavy companions, the orbital eccentricity is relatively high (~0.0002), consistent with evolutionary models that predict less time for circularization. The four remaining pulsars have short spin periods (3 ms < P < 6ms); three of these have probable white dwarf binary companions and one (PSR J2010−1323) is isolated. PSR J1600−3053 is relatively bright for its dispersion measure of 52.3 pc cm^−3 and promises good timing precision thanks to an intrinsically narrow feature in its pulse profile, resolvable through coherent dedispersion. In this survey, the recycled pulsar discovery rate was 1 per 4 days of telescope time or 1 per 600 deg^2 of sky. The variability of these sources implies that there are more millisecond pulsars that might be found by repeating this survey.

Item Type:Article
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Bailes, M.0000-0003-3294-3081
Additional Information:© 2007. The American Astronomical Society. Received 2005 August 26; accepted 2006 September 14. We thank R. Edwards for invaluable help with pulsar search software. The Parkes telescope is part of the Australia Telescope, which is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO. B.A.J. thanks NSF and NASA for supporting this research. B.A.J. holds a National Research Council Research Associateship Award at the Naval Research Laboratory (NRL). Basic research in radio astronomy at NRL is supported by the Office of Naval Research.
Funding AgencyGrant Number
Commonwealth of AustraliaUNSPECIFIED
National Science FoundationUNSPECIFIED
National Research CouncilUNSPECIFIED
Office of Naval ResearchUNSPECIFIED
Subject Keywords:binaries: close — pulsars: general — stars: neutron — surveys
Issue or Number:1
Record Number:CaltechAUTHORS:JACapj07
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12796
Deposited By: Archive Administrator
Deposited On:24 Dec 2008 18:00
Last Modified:09 Mar 2020 13:18

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