Volume 411, Number 1, November III 2003
Special letters issue on: first science with integral
|Page(s)||L421 - L425|
|Published online||17 November 2003|
Letter to the Editor
INTEGRAL observations of the black hole candidate H 1743-322 in outburst*
Research and Scientific Support Department of ESA, ESTEC, Postbus 299, 2200 AG Noordwijk, The Netherlands
Corresponding author: A. N. Parmar, firstname.lastname@example.org
Accepted: 28 July 2003
INTEGRAL made 3 observations in 2003 April of the black hole candidate H 1743-322 during the rising part, and close to the maximum, of an outburst. H 1743-322 was previously observed in outburst in 1977–1978. The source is located in a crowded region of the sky ( and at least 18 sources are clearly detected in the field of view of the ISGRI gamma-ray imager during a 277 ks exposure. These are well known persistent X-ray binary sources and 3 transient sources in outburst. The combined 5–200 keV JEM-X and SPI spectrum of H 1743-322 is well fit with an absorbed atom cm-2) soft (photon index ) power-law model, consistent with H 1743-322 being in a high/soft state.
Key words: accretion, accretion disks / X-rays: individual: H 1743-322 / X-rays: binaries
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.