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New ASKAP radio supernova remnants and candidates in the Large Magellanic Cloud

Bozzetto, Luke M; Filipović, Miroslav D; Sano, H; Alsaberi, R Z E; Barnes, L A; Bojičić, I S; Brose, R; Chomiuk, L; Crawford, E J; Dai, S; Ghavam, M; Haberl, F; Hill, T; Hopkins, A M; Ingallinera, A; Jarrett, T; Kavanagh, P J; Koribalski, B S; Kothes, R; Leahy, D; Lenc, E; Leonidaki, I; Maggi, P; Maitra, C; Matthew, C; Payne, J L; Pennock, C M; Points, S; Reid, W; Riggi, S; Rowell, G; Sasaki, M; Safi-Harb, S; van Loon, J Th; Tothill, N F H; Urošević, D; Zangrandi, F


Luke M Bozzetto

Miroslav D Filipović

H Sano

R Z E Alsaberi

L A Barnes

I S Bojičić

R Brose

L Chomiuk

E J Crawford

S Dai

M Ghavam

F Haberl

T Hill

A M Hopkins

A Ingallinera

T Jarrett

P J Kavanagh

B S Koribalski

R Kothes

D Leahy

E Lenc

I Leonidaki

P Maggi

C Maitra

C Matthew

J L Payne

C M Pennock

S Points

W Reid

S Riggi

G Rowell

M Sasaki

S Safi-Harb

N F H Tothill

D Urošević

F Zangrandi


We present a new Australian Square Kilometre Array Pathfinder (ASKAP) sample of 14 radio supernova remnants (SNR) candidates in the Large Magellanic Cloud (LMC). This new sample is a significant increase to the known number of older, larger, and low surface brightness LMC SNRs. We employ a multifrequency search for each object and found possible traces of optical and occasionally X-ray emission in several of these 14 SNR candidates. One of these 14 SNR candidates (MCSNR J0522 – 6543) has multifrequency properties that strongly indicate a bona fide SNR. We also investigate a sample of 20 previously suggested LMC SNR candidates and confirm the SNR nature of MCSNR J0506 – 6815. We detect lower surface brightness SNR candidates which were likely formed by a combination of shock waves and strong stellar winds from massive progenitors (and possibly surrounding OB stars). Some of our new SNR candidates are also found in lower density environments in which SNe type Ia explode inside a previously excavated interstellar medium.


Bozzetto, L. M., Filipović, M. D., Sano, H., Alsaberi, R. Z. E., Barnes, L. A., Bojičić, I. S., …Zangrandi, F. (2022). New ASKAP radio supernova remnants and candidates in the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 518(2), 2574-2598.

Journal Article Type Article
Acceptance Date Oct 6, 2022
Online Publication Date Oct 13, 2022
Publication Date Nov 29, 2022
Deposit Date May 30, 2023
Journal Monthly Notices of the Royal Astronomical Society
Print ISSN 0035-8711
Electronic ISSN 1365-2966
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 518
Issue 2
Pages 2574-2598
Keywords Space and Planetary Science; Astronomy and Astrophysics