XMM-Newton observations reveal the X-ray counterpart of the very-high-energy gamma-ray source HESSJ1640-465

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dc.creatorFunk, S.
dc.creatorHinton, J. A.
dc.creatorPuehlhofer, G.
dc.creatorAharonian, F. A.
dc.creatorHofmann, W.
dc.creatorReimer, O.
dc.creatorWagner, S.
dc.date2007-01-07
dc.date.accessioned2026-07-07T11:20:56Z
dc.date.available2026-07-07T11:20:56Z
dc.descriptionWe present X-ray observations of the as of yet unidentified very high-energy (VHE) gamma-ray source HESSJ1640-465 with the aim of establishing a counterpart of this source in the keV energy range, and identifying the mechanism responsible for the VHE emission. The 21.8 ksec XMM-Newton observation of HESSJ1640-465 in September 2005 represents a significant improvement in sensitivity and angular resolution over previous ASCA studies in this region. These new data show a hard-spectrum X-ray emitting object at the centroid of the H.E.S.S. source, within the shell of the radio Supernova Remnant (SNR) G338.3-0.0. This object is consistent with the position and flux previously measured by both ASCA and Swift-XRT but is now shown to be significantly extended. We argue that this object is very likely the counterpart to HESSJ1640-465 and that both objects may represent the Pulsar Wind Nebula of an as of yet undiscovered pulsar associated with G338.3-0.0.
dc.descriptionsubmitted to the Astrophysical Journal
dc.identifierhttps://arxiv.org/abs/astro-ph/0701166
dc.identifierhttp://arxiv.org/abs/astro-ph/0701166
dc.identifierAstrophys.J.662:517-524,2007
dc.identifierdoi:10.1086/516567
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194115
dc.subjectAstrophysics
dc.titleXMM-Newton observations reveal the X-ray counterpart of the very-high-energy gamma-ray source HESSJ1640-465
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