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Accepted manuscript

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

Published online by Cambridge University Press:  04 June 2025

Rami Z. E. Alsaberi Open the ORCID record for Rami Z. E. Alsaberi [Opens in a new window] ,
Miroslav D. Filipović ,
Hidetoshi Sano ,
Shi Dai ,
Frank Haberl ,
Patrick J. Kavanagh ,
Denis Leahy Open the ORCID record for Denis Leahy [Opens in a new window] ,
Pierre Maggi ,
Gavin Rowell  and
Manami Sasaki
...Show all authors
Rami Z. E. Alsaberi*
Affiliation:
Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan Western Sydney University, Locked Bag 1797, Penrith NSW 2751, Australia
Miroslav D. Filipović
Affiliation:
Western Sydney University, Locked Bag 1797, Penrith NSW 2751, Australia
Hidetoshi Sano
Affiliation:
Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan Center for Space Research and Utilization Promotion (c-SRUP), Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan
Shi Dai
Affiliation:
Western Sydney University, Locked Bag 1797, Penrith NSW 2751, Australia
Frank Haberl
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, Gießenbachstraße 1, D-85748 Garching, Germany
Patrick J. Kavanagh
Affiliation:
Department of Physics, Maynooth University, Maynooth, Co Kildare, Ireland
Denis Leahy
Affiliation:
Department of Physics and Astronomy, University of Calgary, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
Pierre Maggi
Affiliation:
Observatoire Astronomique de Strasbourg, Université de Strasbourg, CNRS, 11 rue de l’Université, F-67000 Strasbourg, France
Gavin Rowell
Affiliation:
School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia
Manami Sasaki
Affiliation:
Remeis Observatory and ECAP, Universität Erlangen-Nürnberg, Sternwartstraße 7, D-96049 Bamberg, Germany
Ivo R. Seitenzahl
Affiliation:
Heidelberg Institute for Theoretical Studies (HITS), Schloss-Wolfsbrunnen Weg 35, 69118, Heidelberg, Germany
Dejan Urošević
Affiliation:
Department of Astronomy, Faculty of Mathematics, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia Isaac Newton Institute of Chile, Yugoslavia Branch
Jeffrey Payne
Affiliation:
Western Sydney University, Locked Bag 1797, Penrith NSW 2751, Australia
Zachary J. Smeaton
Affiliation:
Western Sydney University, Locked Bag 1797, Penrith NSW 2751, Australia
Sanja Lazarević
Affiliation:
Western Sydney University, Locked Bag 1797, Penrith NSW 2751, Australia CSIRO Space and Astronomy, Australia Telescope National Facility, PO Box 76, Epping, NSW 1710, Australia Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia
*
Author for correspondence: R. Z. E. Alsaberi, Email: ramy_z@yahoo.com.
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Abstract

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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.

Keywords

galaxies: Magellanic CloudsISM: supernova remnantsmethods: observational
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Accepted manuscript , pp. 1 - 12
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of Astronomical Society of Australia