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Multifrequency study of the Large Magellanic Cloud supernova remnant J0529−6653 near pulsar B0529-66

Authors :
E. J. Crawford
Jeffrey L Payne
Nicholas F. H Tothill
Miroslav Filipovic
Robert A. Gruendl
M. Stupar
Frank Haberl
Wolfgang Pietsch
Luke M Bozzetto
Dejan Urošević
Manami Sasaki
A. Y. De Horta
You-Hua Chu
John R. Dickel
Source :
Monthly Notices of the Royal Astronomical Society. 420:2588-2595
Publication Year :
2012
Publisher :
Oxford University Press (OUP), 2012.

Abstract

We report the ATCA and ROSAT detection of Supernova Remnant (SNR) J0529--6653 in the Large Magellanic Cloud (LMC) which is positioned in the projected vicinity of the known radio pulsar PSR B0529-66. In the radio-continuum frequencies, this LMC object follows a typical SNR structure of a shell morphology with brightened regions in the south-west. It exhibits an almost circular shape of D=33 x 31 pc (1 pc uncertainty in each direction) and radio spectral index of alpha=-0.68$+-$0.03 - typical for mid-age SNRs. We also report detection of polarised regions with a peak value of 17+-7% at 6 cm. An investigation of ROSAT images produced from merged PSPC data reveals the presence of extended X-ray emission coincident with the radio emission of the SNR. In X-rays, the brightest part is in the north-east. We discuss various scenarios in regards to the SNR-PSR association with emphasis on the large age difference, lack of a pulsar trail and no prominent point-like radio or X-ray source.

Details

ISSN :
00358711
Volume :
420
Database :
OpenAIRE
Journal :
Monthly Notices of the Royal Astronomical Society
Accession number :
edsair.doi...........fa583601fee972eb87552784d2c3a0c7
Full Text :
https://doi.org/10.1111/j.1365-2966.2011.20231.x