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Title: XMM-Newton Observations Reveal the X-ray Counterpart of the Very-high-energy gamma-ray Source HESS J1640-465

Abstract

We present X-ray observations of the as of yet unidentified very high-energy (VHE) {gamma}-ray source HESS J1640-465 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 HESS J1640-465 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 HESS J1640-465 and that both objects may represent the Pulsar Wind Nebula of an as of yet undiscovered pulsar associated with G338.3-0.0.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
900607
Report Number(s):
SLAC-PUB-12295
Journal ID: ISSN 0004-637X; ASJOAB; astro-ph/0701166; TRN: US200711%%359
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophys.J.662:517-524,2007
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ENERGY RANGE; PULSARS; RESOLUTION; SENSITIVITY; SUPERNOVA REMNANTS; Astrophysics,ASTRO

Citation Formats

Funk, S., Hinton, J.A., Puhlhofer, G., Aharonian, F.A., Hofmann, W., Reimer, O., Wagner, S., /KIPAC, Menlo Park /Heidelberg, Max Planck Inst. /Leeds U. /Dublin Inst. /Stanford U., HEPL, Funk, S., Hinton, J.A., Puehlhofer, G., Aharonian, F.A., Hofmann, W., Reimer, O., and Wagner, S.. XMM-Newton Observations Reveal the X-ray Counterpart of the Very-high-energy gamma-ray Source HESS J1640-465. United States: N. p., 2007. Web. doi:10.1086/516567.
Funk, S., Hinton, J.A., Puhlhofer, G., Aharonian, F.A., Hofmann, W., Reimer, O., Wagner, S., /KIPAC, Menlo Park /Heidelberg, Max Planck Inst. /Leeds U. /Dublin Inst. /Stanford U., HEPL, Funk, S., Hinton, J.A., Puehlhofer, G., Aharonian, F.A., Hofmann, W., Reimer, O., & Wagner, S.. XMM-Newton Observations Reveal the X-ray Counterpart of the Very-high-energy gamma-ray Source HESS J1640-465. United States. doi:10.1086/516567.
Funk, S., Hinton, J.A., Puhlhofer, G., Aharonian, F.A., Hofmann, W., Reimer, O., Wagner, S., /KIPAC, Menlo Park /Heidelberg, Max Planck Inst. /Leeds U. /Dublin Inst. /Stanford U., HEPL, Funk, S., Hinton, J.A., Puehlhofer, G., Aharonian, F.A., Hofmann, W., Reimer, O., and Wagner, S.. Mon . "XMM-Newton Observations Reveal the X-ray Counterpart of the Very-high-energy gamma-ray Source HESS J1640-465". United States. doi:10.1086/516567. https://www.osti.gov/servlets/purl/900607.
@article{osti_900607,
title = {XMM-Newton Observations Reveal the X-ray Counterpart of the Very-high-energy gamma-ray Source HESS J1640-465},
author = {Funk, S. and Hinton, J.A. and Puhlhofer, G. and Aharonian, F.A. and Hofmann, W. and Reimer, O. and Wagner, S. and /KIPAC, Menlo Park /Heidelberg, Max Planck Inst. /Leeds U. /Dublin Inst. /Stanford U., HEPL and Funk, S. and Hinton, J.A. and Puehlhofer, G. and Aharonian, F.A. and Hofmann, W. and Reimer, O. and Wagner, S.},
abstractNote = {We present X-ray observations of the as of yet unidentified very high-energy (VHE) {gamma}-ray source HESS J1640-465 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 HESS J1640-465 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 HESS J1640-465 and that both objects may represent the Pulsar Wind Nebula of an as of yet undiscovered pulsar associated with G338.3-0.0.},
doi = {10.1086/516567},
journal = {Astrophys.J.662:517-524,2007},
number = ,
volume = ,
place = {United States},
year = {Mon Mar 05 00:00:00 EST 2007},
month = {Mon Mar 05 00:00:00 EST 2007}
}