The Discovery of 5 Millisecond Pulsars in the High Time Resolution Universe Survey

被引：0

作者：

Bates, S. D. ^{[1
]}

Bailes, M. ^{[2
]}

Bhat, N. D. R. ^{[2
]}

Burgay, M.

Burke-Spolaor, S. ^{[2
,4
]}

D'Amico, N. ^{[3
]}

Jameson, A.

Johnston, S. ^{[4
]}

Keith, M. J.

Kramer, M. ^{[5
]}

Levin, L. ^{[2
,4
]}

Lyne, A. ^{[1
]}

Milia, S. ^{[3
,6
]}

Possenti, A. ^{[3
]}

Stappers, B. W. ^{[1
]}

van Straten, W. ^{[2
]}

机构：

[1] Univ Manchester, Sch Phys & Astron, Jodrell Bank, Manchester M13 9PL, Lancs, England

[2] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia

[3] Osservatorio Astron Cagliari, INAF, I-09012 Caopterra, Italy

[4] CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia

[5] Max Planck Inst Radioastron, D-53121 Bonn, Germany

[6] Univ Degli Studi Cagliari, Cittadella Univ, Dipartimento Fis, I-09042 Monserrato, Italy

来源：

RADIO PULSARS: AN ASTROPHYSICAL KEY TO UNLOCK THE SECRETS OF THE UNIVERSE | 2011年 / 1357卷

关键词：

Surveys; MSPs; RADIO PULSARS; BINARY; SYSTEM;

D O I：

10.1063/1.3615068

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 similar to 2.3 ms to similar to 7.5 ms, and all are in binary systems with orbital periods ranging from similar to 0.3 to similar to 150 d. In four of these systems, the most likely companion is a white dwarf, with minimum masses of similar to 0.2 M-circle dot. 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.

引用

页码：23 / +

页数：3

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