Supernova remnants on the outskirts of the Large Magellanic Cloud
Sasaki M, Zangrandi F, Filipović M, Alsaberi RZ, Collier JD, Haberl F, Heywood I, Kavanagh P, Koribalski B, Kothes R, Lazarević S, Maggi P, Maitra C, Points S, Smeaton ZJ, Velović V (2025)
Publication Type: Journal article
Publication year: 2025
Journal
Book Volume: 693
Article Number: L15
DOI: 10.1051/0004-6361/202452178
Abstract
When a star dies, it can explode in a supernova, causing a strong shock wave and forming an interstellar object called a supernova remnant (SNR). Observational studies of SNRs allow us to learn about the different types of progenitors, the explosion mechanisms, the physics of interstellar shocks, and the matter cycle in galaxies. We report on the first detection of SNRs located on the outskirts of a galaxy; namely, the Large Magellanic Cloud (LMC), the largest satellite galaxy of our Galaxy. The sources were discovered ∼3 outside the main stellar and gas distribution of the LMC in the recent surveys in radio with the Australian Square Kilometre Array Pathfinder (ASKAP) and in X-rays with the extended Roentgen Survey with an Imaging Telescope Array (eROSITA). We studied them in follow-up observations with the X-ray Multi-Mirror Mission-Newton telescope and MeerKAT and confirmed them to be SNRs. Their progenitors are most likely stars that had left the LMC due to tidal interaction between the Magellanic Clouds and the Milky Way. SNR J0614-7251 is located in an environment with a similar density to those of the other known SNRs in the LMC, and has similar X-ray properties. SNR J0624-6948, on the other hand, is located in a region with a lower density, n
Authors with CRIS profile
Manami Sasaki
Professur für Multiwellenlängenastronomie
Federico Zangrandi
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)
Cerro Tololo Inter-American Observatory (CTIO)
Chile (CL)
University of Oxford
United Kingdom (GB)
Maynooth University
Ireland (IE)
National Research Council / Conseil national de recherches Canada
Canada (CA)
Université de Strasbourg (UDS)
France (FR)
Australia (AU)
Max-Planck-Institut für extraterrestrische Physik (MPE) / Max Planck Institute for Extraterrestrial Physics
Germany (DE)
Cerro Tololo Inter-American Observatory (CTIO)
Chile (CL)
University of Oxford
United Kingdom (GB)
Maynooth University
Ireland (IE)
National Research Council / Conseil national de recherches Canada
Canada (CA)
Université de Strasbourg (UDS)
France (FR)
How to cite
APA:
Sasaki, M., Zangrandi, F., Filipović, M., Alsaberi, R.Z., Collier, J.D., Haberl, F.,... Velović, V. (2025). Supernova remnants on the outskirts of the Large Magellanic Cloud. Astronomy & Astrophysics, 693. https://doi.org/10.1051/0004-6361/202452178
MLA:
Sasaki, Manami, et al. "Supernova remnants on the outskirts of the Large Magellanic Cloud." Astronomy & Astrophysics 693 (2025).
BibTeX: Download