The Discovery of an Anomalous X-Ray Pulsar in the Supernova Remnant K[CLC]es 73[/CLC] | Zendy

Gautam Vasisht | Zendy; E. V. Gotthelf | Zendy

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The Discovery of an Anomalous X-Ray Pulsar in the Supernova Remnant K[CLC]es 73[/CLC]

Author(s) -

Gautam Vasisht,

E. V. Gotthelf

Publication year - 1997

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/310843

Subject(s) - physics , neutron star , supernova remnant , astrophysics , pulsar , supernova , rotation period , astronomy , compact star , dipole , period (music) , stellar rotation , stars , quantum mechanics , acoustics

We report the discovery of pulsed X-ray emission from the compact source 1E1841-045, using data obtained with the Advanced Satellite for Cosmology andAstrophysics. The X-ray source is located in the center of the small-diametersupernova remnant (SNR) Kes 73 and is very likely to be the compactstellar-remnant of the supernova which formed Kes 73. The X-rays are pulsedwith a period of ~ 11.8 s, and a sinusoidal modulation of roughly 30 %. Weinterpret this modulation to be the rotation period of an embedded neutronstar, and as such would be the longest spin period for an isolated neutron starto-date. This is especially remarkable since the surrounding SNR is very young,at ~ 2000 yr old. We suggest that the observed characteristics of this objectare best understood within the framework of a neutron star with an enormousdipolar magnetic field, B ~ 8x10^14 G

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