Multifrequency study of SNR J0533-7202, a new supernova remnant in the LMC

L. M. Bozzetto; M. D. Filipović; E. J. Crawford; M. Sasaki; P. Maggi; F. Haberl; D. Urošević; J. L. Payne; A. Y. De Horta; M. Stupar; R. Gruendl; J. Dickel

doi:10.1093/mnras/stt568

Multifrequency study of SNR J0533-7202, a new supernova remnant in the LMC

L. M. Bozzetto, M. D. Filipović, E. J. Crawford, M. Sasaki, P. Maggi, F. Haberl, D. Urošević, J. L. Payne, A. Y. De Horta, M. Stupar, R. Gruendl, J. Dickel

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Abstract

We present a detailed study of Australia Telescope Compact Array observations of a newly discovered Large Magellanic Cloud supernova remnant (SNR), SNR J0533-7202. This object follows a horseshoe morphology, with a size of 37 pc Ã— 28 pc (1 pc uncertainty in each direction). It exhibits a radio spectrum with the intrinsic synchrotron spectral index of ? = -0.47 Â± 0.06 between 73 and 6 cm. We report detections of regions showing moderately high fractional polarization at 6 cm, with a peak value of 36 Â± 6 per cent and a mean fractional polarization of 12 Â± 7 per cent.We also estimate an average rotation measure across the remnant of -591 rad m-2. The current lack of deep X-ray observation precludes any conclusion about high-energy emission from the remnant. The association with an old stellar population favours a thermonuclear supernova origin of the remnant.

Original language	English
Pages (from-to)	2177-2181
Number of pages	5
Journal	Monthly Notices of the Royal Astronomical Society
Volume	432
Issue number	3
DOIs	https://doi.org/10.1093/mnras/stt568
Publication status	Published - 2013

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@article{07cb5e077db140cc8a1d0a64978a1cb0,

title = "Multifrequency study of SNR J0533-7202, a new supernova remnant in the LMC",

abstract = "We present a detailed study of Australia Telescope Compact Array observations of a newly discovered Large Magellanic Cloud supernova remnant (SNR), SNR J0533-7202. This object follows a horseshoe morphology, with a size of 37 pc {\~A}— 28 pc (1 pc uncertainty in each direction). It exhibits a radio spectrum with the intrinsic synchrotron spectral index of ? = -0.47 {\^A}± 0.06 between 73 and 6 cm. We report detections of regions showing moderately high fractional polarization at 6 cm, with a peak value of 36 {\^A}± 6 per cent and a mean fractional polarization of 12 {\^A}± 7 per cent.We also estimate an average rotation measure across the remnant of -591 rad m-2. The current lack of deep X-ray observation precludes any conclusion about high-energy emission from the remnant. The association with an old stellar population favours a thermonuclear supernova origin of the remnant.",

author = "Bozzetto, {L. M.} and Filipovi{\'c}, {M. D.} and Crawford, {E. J.} and M. Sasaki and P. Maggi and F. Haberl and D. Uro{\v s}evi{\'c} and Payne, {J. L.} and {De Horta}, {A. Y.} and M. Stupar and R. Gruendl and J. Dickel",

year = "2013",

doi = "10.1093/mnras/stt568",

language = "English",

volume = "432",

pages = "2177--2181",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "3",

}

TY - JOUR

T1 - Multifrequency study of SNR J0533-7202, a new supernova remnant in the LMC

AU - Bozzetto, L. M.

AU - Filipović, M. D.

AU - Crawford, E. J.

AU - Sasaki, M.

AU - Maggi, P.

AU - Haberl, F.

AU - Urošević, D.

AU - Payne, J. L.

AU - De Horta, A. Y.

AU - Stupar, M.

AU - Gruendl, R.

AU - Dickel, J.

PY - 2013

Y1 - 2013

N2 - We present a detailed study of Australia Telescope Compact Array observations of a newly discovered Large Magellanic Cloud supernova remnant (SNR), SNR J0533-7202. This object follows a horseshoe morphology, with a size of 37 pc Ã— 28 pc (1 pc uncertainty in each direction). It exhibits a radio spectrum with the intrinsic synchrotron spectral index of ? = -0.47 Â± 0.06 between 73 and 6 cm. We report detections of regions showing moderately high fractional polarization at 6 cm, with a peak value of 36 Â± 6 per cent and a mean fractional polarization of 12 Â± 7 per cent.We also estimate an average rotation measure across the remnant of -591 rad m-2. The current lack of deep X-ray observation precludes any conclusion about high-energy emission from the remnant. The association with an old stellar population favours a thermonuclear supernova origin of the remnant.

AB - We present a detailed study of Australia Telescope Compact Array observations of a newly discovered Large Magellanic Cloud supernova remnant (SNR), SNR J0533-7202. This object follows a horseshoe morphology, with a size of 37 pc Ã— 28 pc (1 pc uncertainty in each direction). It exhibits a radio spectrum with the intrinsic synchrotron spectral index of ? = -0.47 Â± 0.06 between 73 and 6 cm. We report detections of regions showing moderately high fractional polarization at 6 cm, with a peak value of 36 Â± 6 per cent and a mean fractional polarization of 12 Â± 7 per cent.We also estimate an average rotation measure across the remnant of -591 rad m-2. The current lack of deep X-ray observation precludes any conclusion about high-energy emission from the remnant. The association with an old stellar population favours a thermonuclear supernova origin of the remnant.

UR - http://handle.uws.edu.au:8081/1959.7/531014

U2 - 10.1093/mnras/stt568

DO - 10.1093/mnras/stt568

M3 - Article

SN - 0035-8711

VL - 432

SP - 2177

EP - 2181

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

Multifrequency study of SNR J0533-7202, a new supernova remnant in the LMC

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