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INTEGRAL and RXTE observations of the fast X-ray transient XTEJ1901+014

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 نشر من قبل Alexander Lutovinov
 تاريخ النشر 2006
  مجال البحث فيزياء
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We present results of spectral and timing analysis of the fast X-ray transient XTE J1901+014 based on data of the RXTE and INTEGRAL observatories. With the INTEGRAL/ISGRI the source was detected at a significance level of 20$sigma$ with the persistent flux of $sim$2.7 mCrab in a 17-100 keV energy band in 2003-2004 (during long observations of the Sagittarius arm region). We added the RXTE/PCA (3-20 keV) data obtained in 1998 to the INTEGRAL/ISGRI data to build the broadband spectrum of the source in a quiescent state. It was found that the spectrum can be well approximated by a simple powerlaw with a photon index of $sim$2.15. From timing analysis we found short time scale aperiodic variations which can be connected with instabilities in the accretion flow.



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