Bibcode
Cornelisse, R.; Charles, P. A.; Robertson, C.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 366, Issue 3, pp. 918-922.
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3
2006
Citations
6
Refereed citations
5
Description
We report on the properties of a 99.3-d periodic modulation in the X-ray
transient XTEJ1716-389. We associate this source with the transient
KSJ1716-389, first detected by the Mir/Kvant module in 1994. The
spectral characteristics of XTEJ1716-389, a high intrinsic absorption
column, strong emission features and a power-law spectrum, make it very
similar to the class of highly absorbed X-ray binaries detected by
INTEGRAL. We associate the 99.3-d periodic behaviour with the
geometrical obscuration that results from a precessing circumbinary disc
that is moving in and out of the field of view, comparable to what has
been proposed for SS433. We therefore propose that XTEJ1716-389 is a
high-mass X-ray binary with a supergiant companion that is similar not
only to SS433, but also to the new class of highly obscured X-ray
binaries, suggesting that SS433 is a member of much wider population
that is now being detected by INTEGRAL.