Radio properties of three young supernova remnants in the Large Magellanic Cloud

Abstract

view Abstract Citations (44) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Radio Properties of Three Young Supernova Remnants in the Large Magellanic Cloud Dickel, John R. ; Milne, D. K. Abstract Radio images of N132D, N103B, and 0519-690 have been made with the Australia Telescope. These three prominent young SNRs in the LMC have significantly different optical properties: N132D is oxygen rich and probably had a massive progenitor similar to Cas A; N103B, on the edge of a massive H II region complex, was probably also from a massive star; on the other hand, isolated, Balmer-dominated 0519-690 was probably from a low-mass Type Ia supernova. All three remnants show the characteristic shell structure with some clumpiness. Although the polarimetric data are not complete for all three, the results are compatible with a small net radial orientation of the magnetic fields in these young remnants. We suggest that N132D is older and probably somewhat more energetic and/or massive than Cas A. N103B appears to be a younger version of N132D, while 0519-690 is less luminous and not unlike the remnants of low-mass supernovae seen in the Milky Way. Publication: The Astronomical Journal Pub Date: January 1995 DOI: 10.1086/117266 Bibcode: 1995AJ....109..200D Keywords: Magellanic Clouds; Radio Astronomy; Radio Sources (Astronomy); Supernova Remnants; Astronomical Polarimetry; Balmer Series; H Ii Regions; Interstellar Magnetic Fields; Massive Stars; Oxygen; Astronomy; MAGELLANIC CLOUDS; SUPERNOVA REMNANTS; RADIO LINES: ISM full text sources ADS | data products SIMBAD (5) NED (2)