RADIO-CONTINUUM OBSERVATIONS OF SMALL, RADIALLY POLARISED SUPERNOVA REMNANT J0519–6902 IN THE LARGE MAGELLANIC CLOUD

Serbian Astronomical Journal

article

L. M. Bozzetto¹  M. D. Filipovi´c¹  D. Uroˇsevi´c²  E. J. Crawford¹ 

[1] University of Western Sydney;Department of Astronomy, Faculty of Mathematics, University of Belgrade

关键词: ISM: supernova remnants;    Magellanic Clouds;    radio continuum: ISM;    ISM: individual objects;    SNR J0519–6902;   

DOI  :  10.2298/SAJ1285025B

来源: Astronomical Observatory, Department of Astronomy, Belgrade

【 摘 要 】

We report on new Australian Telescope Compact Array (ATCA) observations of SNR J0519–6902. The Supernova Remnant (SNR) is small in size (∼8 pc) and exhibits a typical SNR spectrum with α = −0.53 ± 0.07, with steeper spectral indices towards the northern limb of the remnant. SNR J0519–6902 contains a low level of radially orientated polarisation at wavelengths of 3 and 6 cm, which is typical of younger SNRs. A fairly strong magnetic field was estimated to ∼171 µG. The remnant appears to be the result of a typical Type Ia supernova, sharing many properties with another small and young Type Ia LMC SNR, J0509–6731.

【 授权许可】

CC BY-NC-ND