Serbian Astronomical Journal (Jan 2010)

Multifrequency radio observations of a SNR in the LMC: The case of SNR J0527-6549 (DEM l204)

  • Bozzetto L.M.,
  • Filipović M.D.,
  • Crawford E.J.,
  • Bojičić I.S.,
  • Payne J.L.,
  • Mendik A.,
  • Wardlaw B.,
  • de Horta A.Y.

DOI
https://doi.org/10.2298/SAJ1081043B
Journal volume & issue
Vol. 2010, no. 181
pp. 43 – 49

Abstract

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We present a detailed study and results of new Australia Telescope Compact Array (ATCA) observations of supernova remnant SNR J0527-6549. This Large Magellanic Cloud (LMC) object follows a typical supernova remnant (SNR) horseshoe morphology with a diameter of D=(66×58)±1 pc which is among the largest SNRs in the LMC. Its relatively large size indicates older age while a steeper than expected radio spectral index of α=-0.92±0.11 is more typical of younger and energetic SNRs. Also, we report detections of regions with a high order of polarization at a peak value of ~54%±17% at 6 cm.

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