ROSAT observations of the binary millisecond pulsar PSR j0751+1807

被引：13

作者：

Becker, W

Trumper, J

Lundgren, SC

Cordes, JM

Zepka, AF

机构：

[1] USN,RES LAB,REMOTE SENSING DIV,WASHINGTON,DC 20375

[2] CORNELL UNIV,ITHACA,NY 14853

[3] UNIV CALIF BERKELEY,DEPT ASTRON,BERKELEY,CA 94720

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1996年 / 282卷 / 03期

关键词：

binaries; general; stars; individual; RX J075109.7+180736; neutron; pulsars; PSR J0751+1807; X-rays; RAPIDLY SPINNING PULSARS; ENERGETIC RADIATION; X-RAYS;

D O I：

10.1093/mnras/282.3.L33

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of the binary millisecond pulsar PSR J0751+1807 in the soft X-ray domain with ROSAT. The low number of source counts does not allow a detailed spectral modelling. Assuming an energy spectrum similar to that of PSR J0437-4715 implies, for the pulsar X-ray flux, f(x) similar to 1 x 10(-13) erg s(-1) cm(-2) within the 0.1-2.4 keV energy range. This corresponds to an X-ray luminosity of L(x) similar to 4.7 x 10(31) erg s(-1) if we adopt the dispersion measure based pulsar distance of 2 kpc. A photon arrival time analysis does not reveal significant X-ray pulses. A sine-wave fit to the folded light curve results in a 2 sigma pulsed fraction upper limit of 35 per cent.

引用

页码：L33 / L36

页数：4

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