EDP Sciences
Free access
Issue
A&A
Volume 423, Number 2, August IV 2004
Page(s) L17 - L20
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:200400021


A&A 423, L17-L20 (2004)
DOI: 10.1051/0004-6361:200400021

Letter

Discovery of a new INTEGRAL source: IGR J19140+0951

D. C. Hannikainen1, J. Rodriguez2, 3, C. Cabanac4, J. Schultz1, N. Lund5, O. Vilhu1, P. O. Petrucci4 and G. Henri4

1  Observatory, PO Box 14, 00014 University of Helsinki, Finland
    e-mail: diana@astro.helsinki.fi
2  Centre d'Études de Saclay, DAPNIA/Service d'Astrophysique (CNRS FRE 2591), B $\hat{\rm a}$t. 709, Orme des Merisiers, Gif-sur-Yvette Cedex 91191, France
3  INTEGRAL Science Data Center, Chemin d'Écogia 16, 1290 Versoix, Switzerland
4  Laboratoire d'Astrophysique, Observatoire de Grenoble, BP 53X, 38041 Grenoble, France
5  Danish Space Research Institute, Juliane Maries Vej 30, 2100 Copenhagen Ø, Denmark



(Received 17 May 2004 / Accepted 1 July 2004)

Abstract
IGR J19140+0951 (formerly known as IGR J19140+098) was discovered with the INTEGRAL satellite in March 2003. We report the details of the discovery, using an improved position for the analysis. We have performed a simultaneous study of the 5-100 keV JEM-X and ISGRI spectra from which we can distinguish two different states. From the results of our analysis we propose that IGR J19140+0951 is a persistent Galactic X-ray binary, probably hosting a neutron star although a black hole cannot be completely ruled out.


Key words: X-rays: binaries -- X-rays: IGR J19140+0951 -- gamma-rays: observations

SIMBAD Objects



© ESO 2004

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