The Anomalous X-Ray Pulsar 4u 0142+61

Details The Anomalous X-Ray Pulsar 4u 0142+61 The Anomalous X-Ray Pulsar 4u 0142+61

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..458c&link_type=abstract

Chandra Proposal ID #02400051

Computer Science

Chandra Proposal Id #02400051

Scientific paper

The properties of 4U 0142+61 are similar to those of a small group of "anomalous" X-ray pulsars (AXPs) with spin periods in the range 6-12 sec. BeppoSAX as well as ASCA observed a blackbody spectral component in the soft X-ray spectrum. The X-ray flux is quite strong and amounts to about 1.1xE^-10 erg/cm2/sec. Although highly absorbed (1E^22 cm2) its high soft flux allows to search for possible cyclotron line emission features. From RXTE observations as well as optical photometric studies a white dwarf companion seems to be possible, although a scenario of an isolated neutron star accreting from a residual disk is proposed as well. Due to the possibility for quite similar evolutionary scenarios, we also search for line emission as observed in 4U 1626-67.

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