eprintid: 10191069 rev_number: 9 eprint_status: archive userid: 699 dir: disk0/10/19/10/69 datestamp: 2024-04-22 09:33:35 lastmod: 2024-04-22 09:33:35 status_changed: 2024-04-22 09:33:35 type: article metadata_visibility: show sword_depositor: 699 creators_name: Zsiros, Szanna creators_name: Szalai, Tamas creators_name: De Looze, Ilse creators_name: Sarangi, Arkaprabha creators_name: Shahbandeh, Melissa creators_name: Fox, Ori D creators_name: Temim, Tea creators_name: Milisavljevic, Dan creators_name: Van Dyk, Schuyler D creators_name: Smith, Nathan creators_name: Filippenko, Alexei creators_name: Brink, Thomas G creators_name: Zheng, Weikang creators_name: Dessart, Luc creators_name: Jencson, Jacob creators_name: Johansson, Joel creators_name: Pierel, Justin creators_name: Rest, Armin creators_name: Tinyanont, Samaporn creators_name: Niculescu-Duvaz, Maria creators_name: Barlow, MJ creators_name: Wesson, Roger creators_name: Andrews, Jennifer creators_name: Clayton, Geoff creators_name: De, Kishalay creators_name: Dwek, Eli creators_name: Engesser, Michael creators_name: Foley, Ryan J creators_name: Gezari, Suvi creators_name: Gomez, Sebastian creators_name: Gonzaga, Shireen creators_name: Kasliwal, Mansi creators_name: Lau, Ryan creators_name: Marston, Anthony creators_name: O'Steen, Richard creators_name: Siebert, Matthew creators_name: Skrutskie, Michael creators_name: Strolger, Lou creators_name: Wang, Qinan creators_name: Williams, Brian creators_name: Williams, Robert creators_name: Xiao, Lin title: Serendipitous detection of the dusty Type IIL SN 1980K with JWST/MIRI ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F60 keywords: Supernovae: general, supernovae: individual: SN 1980K, dust, extinction, infrared: stars note: 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. abstract: 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). date: 2024-03 date_type: published publisher: OXFORD UNIV PRESS official_url: http://dx.doi.org/10.1093/mnras/stae507 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2257997 doi: 10.1093/mnras/stae507 lyricists_name: Barlow, Michael lyricists_id: MJBAR75 actors_name: Barlow, Michael actors_id: MJBAR75 actors_role: owner funding_acknowledgements: NAS 5-03127 [NASA]; GO-2666 [NASA]; [NASA]; [W. M. Keck Foundation] full_text_status: public publication: Monthly Notices of the Royal Astronomical Society volume: 529 number: 1 pagerange: 155-168 pages: 14 issn: 0035-8711 citation: Zsiros, Szanna; Szalai, Tamas; De Looze, Ilse; Sarangi, Arkaprabha; Shahbandeh, Melissa; Fox, Ori D; Temim, Tea; ... Xiao, Lin; + view all <#> Zsiros, Szanna; Szalai, Tamas; De Looze, Ilse; Sarangi, Arkaprabha; Shahbandeh, Melissa; Fox, Ori D; Temim, Tea; Milisavljevic, Dan; Van Dyk, Schuyler D; Smith, Nathan; Filippenko, Alexei; Brink, Thomas G; Zheng, Weikang; Dessart, Luc; Jencson, Jacob; Johansson, Joel; Pierel, Justin; Rest, Armin; Tinyanont, Samaporn; Niculescu-Duvaz, Maria; Barlow, MJ; Wesson, Roger; Andrews, Jennifer; Clayton, Geoff; De, Kishalay; Dwek, Eli; Engesser, Michael; Foley, Ryan J; Gezari, Suvi; Gomez, Sebastian; Gonzaga, Shireen; Kasliwal, Mansi; Lau, Ryan; Marston, Anthony; O'Steen, Richard; Siebert, Matthew; Skrutskie, Michael; Strolger, Lou; Wang, Qinan; Williams, Brian; Williams, Robert; Xiao, Lin; - view fewer <#> (2024) Serendipitous detection of the dusty Type IIL SN 1980K with JWST/MIRI. Monthly Notices of the Royal Astronomical Society , 529 (1) pp. 155-168. 10.1093/mnras/stae507 <https://doi.org/10.1093/mnras%2Fstae507>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10191069/1/Barlow_stae507.pdf