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Title:
A state change of the black-hole transient H1743-322
Authors:
Belloni, T.; Homan, J.; Yamaoka, K.; Swank, J.
Publication:
The Astronomer's Telegram, #1804
Publication Date:
10/2008
Origin:
ATEL
Keywords:
X-ray, Binaries, Black Holes, Transients
Bibliographic Code:
2008ATel.1804....1B

Abstract

An RXTE observation of H 1743-322 made on 2008 October 23 03:18-04:39 UT indicates that the source has undergone a state transition from the Low-Hard State (LHS) to the Hard-Intermediate State (HIMS) (see also ATel #1780, #1779, #1766, #1745, #1739). The power density spectrum shows band limited noise with a characteristic frequency of around 5 Hz and a prominent quasi-periodic oscillation with centroid frequency of 5.6 Hz and a coherence factor Q ~ 10.
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Database: Astronomy
Physics
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