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Evidence of an irradiated accretion disc in XTE J1818–245

Published online by Cambridge University Press:  24 February 2011

J. A. Zurita Heras ,
S. Chaty ,
M. Cadolle Bel  and
L. Prat
J. A. Zurita Heras
Affiliation:
AIM Paris Saclay, CEA-DSM/CNRS-INSU/Université Paris 7 Denis Diderot, IRFU/Service d'Astrophysique, Bât. 709 L'Orme des Merisiers, 91191 Gif-sur-Yvette, France email: juan-antonio.zurita-heras@cea.fr, sylvain.chaty@cea.fr, lionel.prat@cea.fr
S. Chaty
Affiliation:
AIM Paris Saclay, CEA-DSM/CNRS-INSU/Université Paris 7 Denis Diderot, IRFU/Service d'Astrophysique, Bât. 709 L'Orme des Merisiers, 91191 Gif-sur-Yvette, France email: juan-antonio.zurita-heras@cea.fr, sylvain.chaty@cea.fr, lionel.prat@cea.fr
M. Cadolle Bel
Affiliation:
ESAC, ISOC, Villanueva de la Cañada, Madrid, Spain email: Marion.Cadolle@sciops.esa.int
L. Prat
Affiliation:
AIM Paris Saclay, CEA-DSM/CNRS-INSU/Université Paris 7 Denis Diderot, IRFU/Service d'Astrophysique, Bât. 709 L'Orme des Merisiers, 91191 Gif-sur-Yvette, France email: juan-antonio.zurita-heras@cea.fr, sylvain.chaty@cea.fr, lionel.prat@cea.fr
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Abstract

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The X-ray transient source XTE J1818–245 went through an outburst in 2005 that was observed during a multi-wavelength campaign from radio to soft γ-rays. We performed new optical observations with the ESO/NTT telescope at La Silla. The broad-band spectral energy distribution revealed that the outer parts of the accretion disc had to be irradiated by its inner parts to explain the optical emission.

Keywords

X-rays: binariesX-rays: individual (XTE J1818–245)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S275: Jets at all Scales , September 2010 , pp. 323 - 324
Copyright
Copyright © International Astronomical Union 2011

References

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