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[ITAL]ASCA[/ITAL] Discovery of an X-Ray Pulsar in the Error Box of SGR 1900+14

1999; IOP Publishing; Volume: 510; Issue: 2 Linguagem: Inglês

10.1086/311820

ISSN

1538-4357

Autores

K. Hurley, P. Li, C. Kouveliotou, T. Murakami, Masaki Ando, Tod E. Strohmayer, J. van Paradijs, F. Vrba, C. Luginbuhl, A. Yoshida, I. A. Smith,

Tópico(s)

Astrophysical Phenomena and Observations

Resumo

We present a 2-10 keV ASCA observation of the field around the soft gamma repeater SGR 1900+14. One quiescent X-ray source was detected in this observation, and it was in the SGR error box. In 2-10 keV X-rays, its spectrum may be fitted by a power law with index -2.2, and its unabsorbed flux is 9.6 × 10-12 ergs cm-2 s-1. We also find a clear 5.16 s period. The properties of the three well-studied soft gamma repeaters are remarkably similar to one another, and they provide evidence that all of them are associated with young, strongly magnetized neutron stars in supernova remnants.

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