Aperiodic variability and broad band spectral properties of the X-ray burster GS1826-24

Details Aperiodic variability and broad band spectral properties of the X-ray burster GS1826-24 Aperiodic variability and broad band spectral properties of the X-ray burster GS1826-24

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.331b&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

GS1826-24, discovered by GINGA in September 1988, was first classified as a black hole candidate, because of its hard spectrum and extreme rapid variability in X-rays. However, on the basis of its low X-ray and hard X-ray luminosities, it was later hypothesized that the compact object in GS1826-24 could be a neutron star. Recently SAX observed type I X-ray bursts from GS1826-24, thus excluding its black hole nature, and confirming the neutron star hypothesis. GS1826-24 was observed by RXTE for about 40 ksec on November 5th and 6th, 1997. In this paper, we present results from the study of both its aperiodic variability and its broad band (2-200 keV) energy spectrum.

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