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BeppoSAX observation of the transient X-ray pulsar GS 1843+00

S. Piraino·A. Santangelo·A. Segreto·S. Giarrusso·G. Cusumano·S. Del Sordo·N. R. Robba·D. Dal Fiume·M. Orlandini·T. Oosterbroek·A. N. Parmar
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Abstract

We present the results from both the timing and spectroscopic analysis of the transient X-ray pulsar GS 1843+00 observed by the BeppoSAX satellite on 1997 April 4, when the source was at a luminosity of ~10^{37} erg s^{-1}. GS 1843+00 shows a very hard spectrum that is well fitted by an absorbed power law (N_H \~2.3 10^{22} cm^{-2}) modified by a high energy cut-off above 6 keV. The source shows a small pulse amplitude in the whole energy band. The pulse profile evolves with energy from a double-peaked to single-peaked shape. The barycentric pulse period is 29.477+/-0.001 s.

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S. Piraino, A. Santangelo, A. Segreto, S. Giarrusso, G. Cusumano, S. Del Sordo, N. R. Robba, D. Dal Fiume, M. Orlandini, T. Oosterbroek, A. N. Parmar. 2000-03-28. BeppoSAX observation of the transient X-ray pulsar GS 1843+00. https://arxiv.org/abs/astro-ph/0003405

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