Multifrequency Radio Observations of a SNR in the LMC. The Case of SNR J0527-6549 (DEM L204)

Serbian Astronomical Journal

关键词: ISM: supernova remnants;    Magellanic Clouds;    Radio Continuum: ISM;    Polarization;    ISM: individual objects: SNR J0527-6549;   

DOI  :  

来源: DOAJ

【 摘 要 】

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$imes$58)$pm$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 $alpha$=-0.92$pm$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 $sim$ 54 per cent $pm$ 17 per cent at 6~cm.

【 授权许可】

Unknown