Details

Autor(en) / Beteiligte

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

Titel

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

Ist Teil von

• Monthly notices of the Royal Astronomical Society, 2013-07, Vol.432 (3), p.2177-2181

Ort / Verlag

London: Oxford University Press

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 × 28 pc (1 pc uncertainty in each direction). It exhibits a radio spectrum with the intrinsic synchrotron spectral index of α = −0.47 ± 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 ± 6 per cent and a mean fractional polarization of 12 ± 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.