TY  - JOUR
PB  - OXFORD UNIV PRESS
ID  - discovery10191069
SP  - 155
JF  - Monthly Notices of the Royal Astronomical Society
A1  - Zsiros, Szanna
A1  - Szalai, Tamas
A1  - De Looze, Ilse
A1  - Sarangi, Arkaprabha
A1  - Shahbandeh, Melissa
A1  - Fox, Ori D
A1  - Temim, Tea
A1  - Milisavljevic, Dan
A1  - Van Dyk, Schuyler D
A1  - Smith, Nathan
A1  - Filippenko, Alexei
A1  - Brink, Thomas G
A1  - Zheng, Weikang
A1  - Dessart, Luc
A1  - Jencson, Jacob
A1  - Johansson, Joel
A1  - Pierel, Justin
A1  - Rest, Armin
A1  - Tinyanont, Samaporn
A1  - Niculescu-Duvaz, Maria
A1  - Barlow, MJ
A1  - Wesson, Roger
A1  - Andrews, Jennifer
A1  - Clayton, Geoff
A1  - De, Kishalay
A1  - Dwek, Eli
A1  - Engesser, Michael
A1  - Foley, Ryan J
A1  - Gezari, Suvi
A1  - Gomez, Sebastian
A1  - Gonzaga, Shireen
A1  - Kasliwal, Mansi
A1  - Lau, Ryan
A1  - Marston, Anthony
A1  - O'Steen, Richard
A1  - Siebert, Matthew
A1  - Skrutskie, Michael
A1  - Strolger, Lou
A1  - Wang, Qinan
A1  - Williams, Brian
A1  - Williams, Robert
A1  - Xiao, Lin
UR  - http://dx.doi.org/10.1093/mnras/stae507
KW  - Supernovae: general
KW  -  supernovae: individual: SN 1980K
KW  -  dust
KW  -  extinction
KW  -  infrared: stars
AV  - public
IS  - 1
TI  - Serendipitous detection of the dusty Type IIL SN 1980K with JWST/MIRI
Y1  - 2024/03//
N1  - Copyright © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
SN  - 0035-8711
N2  - We present mid-infrared (mid-IR) imaging of the Type IIL supernova (SN) 1980K with the JWST more than 40 yr post-explosion. SN 1980K, located in the nearby ( D ?7 Mpc) 'SN factory' galaxy NGC 6946, was serendipitously captured in JWST /MIRI images taken of the field of SN 2004et in the same galaxy. SN 1980K serves as a promising candidate for studying the transitional phase between young SNe and older SN remnants and also provides a great opportunity to investigate its the close environment. SN 1980K can be identified as a clear and bright point source in all eight MIRI filters from F 560 W up to F 2550 W . We fit analytical dust models to the mid-IR spectral energy distribution that reveal a large amount ( M d ?0.002 M ?) of Si-dominated dust at T dust ?150 K (accompanied by a hotter dust/gas component), and also computed numerical SED dust models. Radiative transfer modelling of a late-time optical spectrum obtained recently with Keck discloses that an even larger ( ?0.24-0.58 M ?) amount of dust is needed in order for selectiv e e xtinction to explain the asymmetric line profile shapes observed in SN 1980K. As a conclusion, with JWST , we may see i) pre-existing circumstellar dust heated collisionally (or, partly radiatively), analogous to the equatorial ring of SN 1987A, or ii) the mid-IR component of the presumed newly-formed dust, accompanied by much more colder dust present in the ejecta (as suggested by the late-time the optical spectra).
VL  - 529
EP  - 168
ER  -