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

[thumbnail of 3011800000360.pdf] PDF
3011800000360.pdf

Download (438kB)

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
Divisions: Faculty of Engineering and Natural Sciences > Basic Sciences > Physics
Faculty of Engineering and Natural Sciences
Depositing User: Ünal Ertan
Date Deposited: 20 Mar 2007 02:00
Last Modified: 26 Apr 2022 08:01
URI: https://research.sabanciuniv.edu/id/eprint/104

Actions (login required)

View Item
View Item