Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...277...77b&link_type=abstract
Astronomy and Astrophysics, Vol. 277, NO. 1/SEP(III), P. 77, 1993
Astronomy and Astrophysics
Astrophysics
3
X-Rays: Stars
Scientific paper
X-ray observations of GX 5-1 carried out with the coded-mask camera TTM are presented. The results consist of a sample of measurements in the energy range 2-30 keV extending over a period of almost one year, from October 21, 1988 to September 5, 1989. Our results confirm some of the general features of the X-ray spectral behavior of GX 5-1 on timescales of days to months as observed by other instruments. Statistical tests on our data indicate that there are significant deviations from a homogeneous data point density in the hardness-intensity diagram of GX 5-1, which are probably due to changing timescales of spectral variations. The physical background of these deviations is briefly discussed.
Aref'ev V.
Blom Jan J.
Borozdin Konstantin
Heise Jaret
Int-Zand J. M. J.
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