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

2000/03/27 by S. Piraino, Piraino, S., A. Santangelo +19
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics (astro-ph) #FOS: Physical sciences #High-pressure geophysics and materials #Pulsars and Gravitational Waves Research #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0003405

11 pages, LaTeX, 12 PS files, requires epsfig.sty, accepted for publication on A&A

openalex publication_date 2000/03/27 · arxiv created 2000/03/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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 ~10³⁷ erg s^-1. GS 1843+00 shows a very hard spectrum that is well fitted by an absorbed power law (N_H \~2.3 10²² 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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