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  • Hosseinzadeh, Griffin (author)

Weak Mass Loss from the Red Supergiant Progenitor of the Type II SN 2021yja

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • 2022-08-10
  • American Astronomical Society,2022
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-209323
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-209323URI
  • https://doi.org/10.3847/1538-4357/ac75f0DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • We present high-cadence optical, ultraviolet (UV), and near-infrared data of the nearby (D approximate to 23 Mpc) Type II supernova (SN) 2021yja. Many Type II SNe show signs of interaction with circumstellar material (CSM) during the first few days after explosion, implying that their red supergiant (RSG) progenitors experience episodic or eruptive mass loss. However, because it is difficult to discover SNe early, the diversity of CSM configurations in RSGs has not been fully mapped. SN 2021yja, first detected within approximate to 5.4 hours of explosion, shows some signatures of CSM interaction (high UV luminosity and radio and x-ray emission) but without the narrow emission lines or early light-curve peak that can accompany CSM. Here we analyze the densely sampled early light curve and spectral series of this nearby SN to infer the properties of its progenitor and CSM. We find that the most likely progenitor was an RSG with an extended envelope, encompassed by low-density CSM. We also present archival Hubble Space Telescope imaging of the host galaxy of SN 2021yja, which allows us to place a stringent upper limit of less than or similar to 9 M-circle dot; on the progenitor mass. However, this is in tension with some aspects of the SN evolution, which point to a more massive progenitor. Our analysis highlights the need to consider progenitor structure when making inferences about CSM properties, and that a comprehensive view of CSM tracers should be made to give a fuller view of the last years of RSG evolution.

Subject headings and genre

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  • Kilpatrick, Charles D. (author)
  • Dong, Yize (author)
  • Sand, David J. (author)
  • Andrews, Jennifer E. (author)
  • Bostroem, K. Azalee (author)
  • Janzen, Daryl (author)
  • Jencson, Jacob E. (author)
  • Lundquist, Michael (author)
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  • Howell, D. Andrew (author)
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  • Newsome, Megan (author)
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  • Pellegrino, Craig (author)
  • Terreran, Giacomo (author)
  • Auchettl, Katie (author)
  • Davis, Kyle W. (author)
  • Foley, Ryan J. (author)
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  • Rest, Armin (author)
  • Siebert, Matthew R. (author)
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  • Tucker, Brad E. (author)
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  • Swift, Jonathan J. (author)
  • Yang, Grace (author)
  • Anderson, Joseph P. (author)
  • Ashall, Chris (author)
  • Benetti, Stefano (author)
  • Brown, Peter J. (author)
  • Cartier, Regis (author)
  • Chen, Ting-WanStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)jach1916 (author)
  • Della Valle, Massimo (author)
  • Galbany, Lluis (author)
  • Gomez, Sebastian (author)
  • Gromadzki, Mariusz (author)
  • Haislip, Joshua (author)
  • Hsiao, Eric Y. (author)
  • Inserra, Cosimo (author)
  • Jha, Saurabh W. (author)
  • Killestein, Thomas L. (author)
  • Kouprianov, Vladimir (author)
  • Kozyreva, Alexandra (author)
  • Muller-Bravo, Tomas E. (author)
  • Nicholl, Matt (author)
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  • Shahbandeh, Melissa (author)
  • Shappee, Ben (author)
  • Smith, Nathan (author)
  • Young, David R. (author)
  • Stockholms universitetInstitutionen för astronomi (creator_code:org_t)

Related titles

  • In:Astrophysical Journal: American Astronomical Society935:10004-637X1538-4357

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