Abstract
The source XTE J1901+014 discovered by the RXTE observatory during an intense outburst of hard radiation and classified as a fast X-ray transient is studied. The source’s spectral characteristics in the quiescent state have been investigated for the first time both in the soft X-ray energy range (3–20 keV) based on ROSAT and RXTE data and in the hard energy range (>20 keV) based on INTEGRAL data. A timing analysis of the source’s properties has revealed weak nonperiodic bursts of activity on time scales of several tens of seconds and two intense (∼0.5–1 Crab) outbursts more than several hundred seconds in duration. Certain assumptions about the nature of the object under study are made.
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Original Russian Text © D.I. Karasev, A.A. Lutovinov, S.A. Grebenev, 2007, published in Pis’ma v Astronomicheskiĭ Zhurnal, 2007, Vol. 33, No. 3, pp. 186–195.
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Karasev, D.I., Lutovinov, A.A. & Grebenev, S.A. Study of the fast X-ray transient XTE J1901+014 based on INTEGRAL, RXTE, and ROSAT data. Astron. Lett. 33, 159–167 (2007). https://doi.org/10.1134/S1063773707030036
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DOI: https://doi.org/10.1134/S1063773707030036