The First Results of Observations of the Transient Pulsar SAX J2103.5+4545 by the INTEGRAL Observatory
Abstract
We present the preliminary results of our analysis of the observations of the X-ray pulsar SAX J2103.5+4545 by the INTEGRAL Observatory in December 2002. We mapped this region of the sky in a wide energy range, from 3 to 200 keV. The detection of the source is shown to be significant up to energies of ~100 keV. The hard X-ray flux in the energy range 15-100 keV is variable and presumably depends on the orbital phase. We show that the shape of the pulsar spectrum and its parameters derived from 18-150-keV IBIS data are compatible with the RXTE observations of the source.
- Publication:
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Astronomy Letters
- Pub Date:
- November 2003
- DOI:
- 10.1134/1.1624456
- arXiv:
- arXiv:astro-ph/0306289
- Bibcode:
- 2003AstL...29..713L
- Keywords:
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- Astrophysics
- E-Print:
- 5 pages, 4 figures, accepted for publication in the Astronomy Letters