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28 March 2024
 
  » arxiv » astro-ph/0002474

 Article overview


A deep search for the optical counterpart to the anomalous X-ray pulsar 1E 2259+58.6
F. Hulleman ; M.H. van Kerkwijk ; F.W.M. Verbunt ; S.R. Kulkarni ;
Date 25 Feb 2000
Journal Astron. Astroph., 358, 605 (2000)
Subject astro-ph
Affiliation Utrecht University, California Institute of Technology
AbstractWe present Keck R and I band images of the field of the anomalous X-ray pulsar 1E 2259+58.6. We derive an improved X-ray position from archival ROSAT HRI observations by correcting for systematic (boresight) errors. Within the corresponding error circle, no object is found on the Keck images, down to limiting magnitudes R = 25.7 and I = 24.3. We discuss the constraints imposed by these limits, and conclude that it is unlikely that 1E 2259+58.6 is powered by accretion from a disk, irrespective of whether it is in a binary or not, unless the binary is extremely compact.
Source arXiv, astro-ph/0002474
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