The discovery of 5 millisecond pulsars in the high time resolution universe survey

We present the discovery of 5 millisecond pulsars found in the mid-Galactic latitude portion of the High Time Resolution Universe (HTRU) Survey. The pulsars have rotational periods from ~2.3 ms to ~7.5 ms, and all are in binary systems with orbital periods ranging from ~0.3 to ~150 d. In four of the...

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Bibliographic Details
Main Authors: Bates, S., Bailes, M., Bhat, Ramesh, Burgay, M., Burke-Spolaor, S., D'Amico, N., Jameson, A., Johnston, S., Keith, M., Kramer, M., Levin, L., Lyne, A., Milia, S., Possenti, A., Stappers, B., Van Straten, W.
Format: Conference Paper
Published: 2011
Online Access:http://hdl.handle.net/20.500.11937/55651
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Summary:We present the discovery of 5 millisecond pulsars found in the mid-Galactic latitude portion of the High Time Resolution Universe (HTRU) Survey. The pulsars have rotational periods from ~2.3 ms to ~7.5 ms, and all are in binary systems with orbital periods ranging from ~0.3 to ~150 d. In four of these systems, the most likely companion is a white dwarf, with minimum masses of ~0.2M ? . The other pulsar, J1731-1847, has a very low mass companion and exhibits eclipses, and is thus a member of the "black widow" class of pulsar binaries. These new discoveries occupy a short-period and high-dispersion measure (DM) region of parameter space, which we demonstrate is a direct consequence of the high time and frequency resolution of the HTRU survey. © 2011 American Institute of Physics.