A New Radio Continuum Study of the Large Magellanic Cloud Supernova Remnant MC SNR J0519-6902

Alsaberi RZ, Filipović MD, Sano H, Dai S, Haberl F, Kavanagh PJ, Leahy D, Maggi P, Rowell G, Sasaki M, Seitenzahl IR, Urošević D, Payne J, Smeaton ZJ, Lazarević S (2025)

Publication Type: Journal article

Publication year: 2025

Journal

Publications of the Astronomical Society of Australia Cambridge University Press (CUP)

DOI: 10.1017/pasa.2025.10025

Abstract

We present a new radio continuum study of the Large Magellanic Cloud supernova remnant (SNR) MCSNRJ0519-6902. With a diameter of ∼8 pc, this SNR shows a radio ring-like morphology with three bright regions toward the north, east, and south. Its linear polarisation is prominent with average values of 5 ± 1% and 6 ± 1% at 5500 and 9000 MHz, and we find a spectral index of -0.62 ± 0.02, typical of a young SNR. The average rotation measure is estimated at -124 ± 83 rad m^-2 and the magnetic field strength at ∼11 μG. We also estimate an equipartition magnetic field of 72 ± 5 μG and minimum explosion energy of Emin = 2.6×10⁴⁸ erg. Finally, we identified an H I cloud that may be associated with MCSNRJ0519-6902, located in the southeastern part of the remnant, along with a potential wind-bubble cavity.

Authors with CRIS profile

Manami Sasaki Professur für Multiwellenlängenastronomie

Involved external institutions

University of Western Sydney

Australia (AU) Max-Planck-Institut für extraterrestrische Physik (MPE) / Max Planck Institute for Extraterrestrial Physics

Germany (DE) Maynooth University

Ireland (IE) University of Calgary

Canada (CA) Université de Strasbourg (UDS)

France (FR) University of Adelaide

Australia (AU) Gifu University / 岐阜大学

Japan (JP) Heidelberg Institute for Theoretical Studies GmbH (HITS)

Germany (DE) University of Belgrade / Универзитет у Београду

Serbia (RS)

How to cite

APA:

Alsaberi, R.Z., Filipović, M.D., Sano, H., Dai, S., Haberl, F., Kavanagh, P.J.,... Lazarević, S. (2025). A New Radio Continuum Study of the Large Magellanic Cloud Supernova Remnant MC SNR J0519-6902. Publications of the Astronomical Society of Australia. https://doi.org/10.1017/pasa.2025.10025

MLA:

Alsaberi, Rami Z.E., et al. "A New Radio Continuum Study of the Large Magellanic Cloud Supernova Remnant MC SNR J0519-6902." Publications of the Astronomical Society of Australia (2025).

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