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

doi:10.1093/mnras/stac2922

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

Authors

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

Jacobus Van Loon j.t.van.loon@keele.ac.uk

N F H Tothill

D Urošević

F Zangrandi

Abstract

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.

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
DOI	https://doi.org/10.1093/mnras/stac2922
Keywords	Space and Planetary Science; Astronomy and Astrophysics

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Abstract

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