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arXiv 0709.3712astro-ph
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用INTEGRAL发现的异常X射线脉冲星1 RXS J170849-400910的长期硬X射线变率

Long term hard X-ray variability of the anomalous X-ray pulsar 1RXS J170849.0-400910 discovered with INTEGRAL

D. Gotz, N. Rea, G. L. Israel, S. Zane, P. Esposito, E. V. Gotthelf, S. Mereghetti, A. Tiengo, R. Turolla

摘要:

本文报道了一个多波段高能观测活动,目的是研究磁星候选者之一的异常X射线脉冲星(AXP)1 RXS J170849.0-400910的长期光谱变化。我们在2006年秋季和2007年春季同时用Swift/XRT在0.1-10 keV能量范围内和INTEGRAL/IBIS在20-200 keV能量范围内观测到1 RXS J170849.0-400910。此外,我们还重新分析,使用最新的校准和软件,自2002年以来,所有公开可用的INTEGRAL数据,和软X射线数据从1999年开始使用BeppoSAX,钱德拉,XMM,和Swift/XRT,以研究软和硬X射线光谱的变化1 RXS J170849.0-400910。我们发现一个长期的变化硬X射线通量,延长硬度强度相关性提出了这个源超过2个数量级的能量。

英文摘要:

We report on a multi-band high-energy observing campaign aimed at studying the long term spectral variability of the Anomalous X-ray Pulsar (AXP) 1RXS J170849.0-400910, one of the magnetar candidates. We observed 1RXS J170849.0-400910 in Fall 2006 and Spring 2007 simultaneously with Swift/XRT, in the 0.1-10 keV energy range, and with INTEGRAL/IBIS, in the 20-200 keV energy range. Furthermore, we also reanalyzed, using the latest calibration and software, all the publicly available INTEGRAL data since 2002, and the soft X-ray data starting from 1999 taken using BeppoSAX, Chandra, XMM, and Swift/XRT, in order to study the soft and hard X-ray spectral variability of 1RXS J170849.0-400910. We find a long-term variability of the hard X-ray flux, extending the hardness-intensity correlation proposed for this source over 2 orders of magnitude in energy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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