Is AX J1845-0258 AN Anomalous X-Ray Pulsar?

Details Is AX J1845-0258 AN Anomalous X-Ray Pulsar? Is AX J1845-0258 AN Anomalous X-Ray Pulsar?

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1222k&link_type=abstract

Chandra Proposal ID #04500774

Physics

Chandra Proposal Id #04500774

Scientific paper

The young 7 s pulsar AX J1845-0258 has properties that strongly suggest that it is a member of the rare class of "anomalous X-ray pulsars" (AXPs), and may be a magnetar. However, its spin-down rate, hence its magnetic field, has not been measured because the source has exhibited unusual flux variability. This source represents a possible challenge to the magnetar model, or may be a new manifestation of young neutron stars. We request seven short ACIS-S observations of AX J1845-0258 for use in a carefully crafted observing plan that will allow us to determine the pulsar's spin-down rate, hence test the AXP identification, while simultaneously quantifying its flux variability for the first time in a meaningful way.

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