SIMBAD references

2000A&A...358..605H - Astronomy and Astrophysics, volume 358, 605-611 (2000/6-2)

A deep search for the optical counterpart to the anomalous X-ray pulsar 1E 2259+58.6.

HULLEMAN F., VAN KERKWIJK M.H., VERBUNT F.W.M. and KULKARNI S.R.

Abstract (from CDS):

We 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.

Abstract Copyright: ∼

Journal keyword(s): stars: pulsars: individual: 1E 2259+58.6 - accretion, accretion disks - stars: neutron - stars: white dwarfs - X-rays: stars

Simbad objects: 31

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