Discovery Of A Young, Energetic 31.1 Ms X-ray Pulsar In Supernova Remnant G310.6-1.6

Details Discovery Of A Young, Energetic 31.1 Ms X-ray Pulsar In Supernova Remnant G310.6-1.6 Discovery Of A Young, Energetic 31.1 Ms X-ray Pulsar In Supernova Remnant G310.6-1.6

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21545334g&link_type=abstract

American Astronomical Society, AAS Meeting #215, #453.34; Bulletin of the American Astronomical Society, Vol. 36, p.1113

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Scientific paper

A search for pulsations from the central source in the X-ray bright young Galactic shell-type remnant G310.6-1.6 has yielded a highly energetic rotation-powered pulsar. Two observations obtained with the Rossi X-ray Timing Explorer spaced a year apart reveal a highly significant signal of a P = 31.1 ms pulsar with spin-down power dE/dt = 5.07 x 10 erg/s. This ranks PSR J1400-6325 among the most energetic Galactic pulsars known, with properties similar to the Crab pulsar. In the rotating dipole model, the surface dipole magnetic field strength is B = 1.1 x 1012 G and the characteristic age 12.7 kyr. G310.6-1.6 was recently discovered in a Chandra high resolution X-ray survey of error circles of INTEGRAL hard X-ray sources and is associated with IGR J14003-6326. The timing search was prompted by the discovery of a bright central point source in the remnant surrounded by a non-thermal radio and X-ray nebula, taken to be a pulsar wind nebula (PWN). Power-law spectra fits to the pulsar and PWN yield indexes of 1.22 +/- 0.15 and 1.83 +/- 0.08, respectively, and a 2 - 10 keV flux ratio F(PWN)/F(PSR) 10, all consistent with a young energetic pulsar. We present details of the properties of this pulsar, its PWN, and associated SNR in the context of recent discoveries of other extreme pulsars.

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