A supernova remnant coincident with the slow X-ray pulsar AX J1845-0258

Details A supernova remnant coincident with the slow X-ray pulsar AX J1845-0258 A supernova remnant coincident with the slow X-ray pulsar AX J1845-0258

1999-09-23

arxiv.org/abs/astro-ph/9909400v1

Astronomy and Astrophysics

Astrophysics

4 pages, 1 embedded EPS file, uses emulateapj.sty. Accepted to ApJ Letters

Scientific paper

10.1086/312362

We report on Very Large Array observations in the direction of the recently-discovered slow X-ray pulsar AX J1845-0258. In the resulting images, we find a 5-arcmin shell of radio emission; the shell is linearly polarized with a non-thermal spectral index. We class this source as a previously unidentified, young (< 8000 yr), supernova remnant (SNR), G29.6+0.1, which we propose is physically associated with AX J1845-0258. The young age of G29.6+0.1 is then consistent with the interpretation that anomalous X-ray pulsars (AXPs) are isolated, highly magnetized neutron stars ("magnetars"). Three of the six known AXPs can now be associated with SNRs; we conclude that AXPs are young (~<10 000 yr) objects, and that they are produced in at least 5% of core-collapse supernovae.

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