Keywords
ISM: individual objects (DEM L328
SNR J0550-6823)
ISM: supernova remnants
Magellanic Clouds
Astrophysics - Cosmology and Extragalactic Astrophysics
SNR J0550-6823)
ISM: supernova remnants
Magellanic Clouds
Astrophysics - Cosmology and Extragalactic Astrophysics
How to Cite
Radio continuum observations of LMC SNR J0550-6823. (2012). Revista Mexicana De Astronomía Y Astrofísica, 48(1), 41-46. https://astronomia.unam.mx/journals/rmxaa/article/view/2012rmxaa..48...41b
Abstract
We report on new Australia Telescope Compact Array (ATCA) observations of the Large Magellanic Cloud (LMC) supernova remnant (SNR) J0550-6823 (DEM L328). This object is a typical horseshoe SNR with a diameter of 373"x282" ± 4" (90×68±1 pc), making it one of the largest known SNRs in the Local Group. We estimate a relatively steep radio spectral index of α=-0.79±0.27. However, its stronger than expected polarisation of 50% ± 10% is atypical for older and more evolved SNRs. We also note a strong correlation between [O III] and radio images, classifying this SNR as oxygen dominant.Similar Articles
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