Simultaneous multiwavelength observations of the Low/Hard State of the X-ray transient source SWIFT J1753.5-0127 - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue The Astrophysical Journal Année : 2007

Simultaneous multiwavelength observations of the Low/Hard State of the X-ray transient source SWIFT J1753.5-0127

F. Frontera
  • Fonction : Auteur
R. Farinelli
  • Fonction : Auteur
P. d'Avanzo
  • Fonction : Auteur
A. Tarana
  • Fonction : Auteur
P. Ubertini
  • Fonction : Auteur
I. F. Mirabel
  • Fonction : Auteur

Résumé

We report the results of simultaneous multiwavelength observations of the X-ray transient source SWIFT J1753.5-0127 performed with INTEGRAL, RXTE, NTT, REM and VLA on 2005 August 10-12. The source, which underwent an X-ray outburst since 2005 May 30, was observed during the INTEGRAL Target of Opportunity program dedicated to new X-ray novae located in the Galactic Halo. Broad-band spectra and fast timing variability properties of SWIFT J1753.5-0127 are analyzed together with the optical, near infra-red and radio data. We show that the source was significantly detected up to 600 keV with Comptonization parameters and timing properties typical of the so-called Low/Hard State of black hole candidates. We build a spectral energy distribution and we show that SWIFT J1753.5-0127 does not follow the usual radio/X-ray correlation of X-ray binaries in the Low/Hard State. We give estimates of distance and mass. We conclude that SWIFT J1753.5-0127 belongs to the X-ray nova class and that it is likely a black hole candidate transient source of the Galactic Halo which remained in the Low/Hard State during its main outburst. We discuss our results within the context of Comptonization and jet models.

Dates et versions

in2p3-00124482 , version 1 (15-01-2007)

Identifiants

Citer

M. Cadolle Bel, M. Ribo, J. Rodriguez, S. Chaty, S. Corbel, et al.. Simultaneous multiwavelength observations of the Low/Hard State of the X-ray transient source SWIFT J1753.5-0127. The Astrophysical Journal, 2007, 659, pp.549-560. ⟨10.1086/512004⟩. ⟨in2p3-00124482⟩
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