The discovery of 5 millisecond pulsars in the high time resolution universe survey
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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.
Date
2011Type
Conference Paper
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Bates, S. and Bailes, M. and Bhat, R. and Burgay, M. and Burke-Spolaor, S. and D'Amico, N. and Jameson, A. et al. 2011. The discovery of 5 millisecond pulsars in the high time resolution universe survey, pp. 23-27.
Source Title
AIP Conference Proceedings
ISBN
School
Curtin Institute of Radio Astronomy (Physics)
Collection
Abstract
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.
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