title   
  

X-ray and infrared enhancement of anomalous x-ray pulsar 1E 2259+586

Ertan, Ünal and Göğüş, Ersin and Alpar, M. Ali (2006) X-ray and infrared enhancement of anomalous x-ray pulsar 1E 2259+586. The Astrophysical journal, 640 (1). pp. 435-440. ISSN 0004-637X

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Official URL: http://www.iop.org/EJ/article/0004-637X/640/1/435/61957.web.pdf?request-id=968df3a6-77fe-4cc6-84ef-8701f5e58a02

Abstract

The long-term ( 1.5 yr) X-ray enhancement and the accompanying infrared enhancement light curves of the anomalous X-ray pulsar 1E 2259+586 following the major bursting epoch can be accounted for by the relaxation of a fallback disk that has been pushed back by a gamma-ray flare. The required burst energy estimated from the results of our model fits is low enough for such a burst to have remained below the detection limits. We find that an irradiated disk model with a low irradiation efficiency is in good agreement with both X-ray and infrared data. Nonirradiated disk models also give a good fit to the X-ray light curve, but are not consistent with the infrared data for the first week of the enhancement.

Item Type:Article
Uncontrolled Keywords:accretion, accretion disks; pulsars : individual (1E 2259+586); stars : neutron; X-rays : bursts
Subjects:Q Science > QB Astronomy
ID Code:104
Deposited By:Ünal Ertan
Deposited On:20 Mar 2007 02:00
Last Modified:25 May 2011 14:04

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