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Multi-Wavelength Studies of the GX 339-4 2010 outburst

Published online by Cambridge University Press:  21 February 2013

Marion Cadolle Bel ,
S. Corbel ,
A. Veledina ,
J. Rodriguez ,
P. D'Avanzo ,
J. Tomsick ,
D. M. Russell  and
F. Lewis
Marion Cadolle Bel
Affiliation:
ESAC/ISOC, Spain; email: Marion.Cadolles@sciops.esa.int
S. Corbel
Affiliation:
AIM & CEA-Saclay, France
A. Veledina
Affiliation:
Oulu Univ., Finland
J. Rodriguez
Affiliation:
AIM & CEA-Saclay, France
P. D'Avanzo
Affiliation:
INAF, Italy
J. Tomsick
Affiliation:
SSL/California Univ., USA
D. M. Russell
Affiliation:
Tenerife Obs., Spain
F. Lewis
Affiliation:
FT project, Glamorgan Univ., Wales
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Abstract

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The microquasar GX 339-4 experienced an outburst in 2010. We focus on observations that are quasi-simultaneous with those made by INTEGRAL and RXTE in March–April 2010 with radio, NIR, optical and UV data. X-ray transients are extreme systems, often harboring a black hole, known to emit throughout the whole electromagnetic spectrum in outburst. We studied the source evolution and correlated changes in all wavelengths. The bolometric flux increased from 0.8 to 2.9 × 10−8 erg cm−2 s−1 while the relative contribution of the hot medium decreased. The radio, NIR and optical emission from jets was detected and observed to fade as the source softened; reprocessing in the disc was strong at the end.

Keywords

Black hole physicsstars: GX 339-4 gamma raysIRradio: generalX-rays: binaries
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 17 - 20
Copyright
Copyright © International Astronomical Union 2013

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