HAL : in2p3-00368513, version 1

Code Bibliographique ADS : 2008AIPC.1085..312T

DOI : 10.1063/1.3076669

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4th International Meeting on High Energy Gamma-Ray Astronomy, Heidelberg : Allemagne (2008)

Discovery of a pulsar wind nebula associated with IGR J18490-0000

R. Terrier1, F. Mattana1, A. Djannati-Ataï1, V. Marandon1, M. Renaud2, F. Dubois3

(12/2008)

The IBIS/ISGRI camera on board the INTEGRAL observatory has performed a full survey of the Galactic disk in the hard X-ray regime from 20 keV up to several hundred of keV with an unprecedented sensitivity and angular resolution in this energy range. Among a large number of compact binary systems, this survey has revealed a number of unidentified objects. Using X-ray observations of one of these sources, IGR J18490-0000, we discovered a rather bright non-thermal pointlike object surrounded by an extended diffuse nebula compatible with the Integral position. The morphology and spectral behaviour of both pointlike and extended X-ray emissions are reminiscent of a young pulsar wind nebula of a few thousands years. The H.E.S.S. Array has observed the region and we present the TeV detection of the object. We compare this object to other PWNe visible in the hard X-ray and TeV regime.

1 :	APC - AstroParticule et Cosmologie
2 :	MPI-K - Max-Planck-Institut fuer Kernphysik, Heidelberg
3 :	LAPP - Laboratoire d'Annecy le Vieux de Physique des Particules

équipe(s) de recherche : APC - AHE

Thème(s)

:

Physique/Astrophysique/Phénomènes cosmiques de haute energie Planète et Univers/Astrophysique/Phénomènes cosmiques de haute energie

Mot(s)-clé(s) : pulsars – nebulae – astronomical telescopes – gamma-rays

in2p3-00368513, version 1

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Soumis le : Lundi 16 Mars 2009, 16:53:19

Dernière modification le : Lundi 19 Mars 2012, 18:34:32