The Radio Quiet Neutron Star RX J0720.4-3125

Details The Radio Quiet Neutron Star RX J0720.4-3125 The Radio Quiet Neutron Star RX J0720.4-3125

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...20111801k&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #118.01; Bulletin of the American Astronomical Society, Vol. 34, p.1297

Astronomy and Astrophysics

Astronomy

Scientific paper

We review the soft, nearby, 8-s X-ray pulsar RX J0720.4-3125, concentrating on its spectral energy distribution from radio to X-rays. Using timing data and optical/UV photometry combined with cooling models, we have been able to reject the popular magnetar model for this source, and instead suggest that it is an off-beam radio pulsar. This source would then be either a (1) 1013 G pulsar born with P ~ 0, or a (2) 1012 G pulsar that was injected with a birth period very close to its current period. The proximity of this source (< 500 pc) argues for a substatial population of similar objects. DLK thanks the Fannie and John Hertz Foundation for their generous support.

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