A New Pulsar/Supernova Remnant Pair: AX J1845-0258 in SNR G29.6+0.1

Details A New Pulsar/Supernova Remnant Pair: AX J1845-0258 in SNR G29.6+0.1 A New Pulsar/Supernova Remnant Pair: AX J1845-0258 in SNR G29.6+0.1

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...195.4103v&link_type=abstract

American Astronomical Society, 195th AAS Meeting, #41.03; Bulletin of the American Astronomical Society, Vol. 31, p.1430

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Scientific paper

We present a follow-up X-ray and radio study of the field containing the 7-s X-ray pulsar AX J1845-0258, the serendipitous ASCA source whose characteristics are found to be similar to those of the anomalous X-ray pulsars (AXPs). Newly acquired ASCA data confirms a dramatic reduction in flux from the pulsar and reveals instead a faint X-ray point source, AX J184453.3-025642, within the pulsar's error circle. This X-ray source is surrounded by a partial shell of emission coincident with a newly discovered young shell-type radio supernova remnant, G29.6+0.1. The central X-ray source is too faint to provide a detection of the expected pulsations which might confirm AX J184453.3-025642 as the pulsar. We argue that this system is similar to that of RCW 103, another AXP-like object whose central source displays low/high flux states (but no pulsations). The alternative interpretation of a binary system, perhaps associated with a supernova remnant, is still possible. In either case, this result may have profound implication on the evolution of young neutron stars. Acknowledgments: G.V. and E.V.G's research is supported in part by NASA LTSA grant NAG5-7935. B.M.G. is supported in part by NASA Hubble Fellowship grant HF-01107.01-98A.

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