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A Large Fraction of...
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Bruch, Rachel J.
(author)
A Large Fraction of Hydrogen-rich Supernova Progenitors Experience Elevated Mass Loss Shortly Prior to Explosion
- Article/chapterEnglish2021
Publisher, publication year, extent ...
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2021-05-04
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American Astronomical Society,2021
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:su-193688
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-193688URI
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https://doi.org/10.3847/1538-4357/abef05DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Spectroscopic detection of narrow emission lines traces the presence of circumstellar mass distributions around massive stars exploding as core-collapse supernovae. Transient emission lines disappearing shortly after the supernova explosion suggest that the material spatial extent is compact and implies an increased mass loss shortly prior to explosion. Here, we present a systematic survey for such transient emission lines (Flash Spectroscopy) among Type II supernovae detected in the first year of the Zwicky Transient Facility survey. We find that at least six out of ten events for which a spectrum was obtained within two days of the estimated explosion time show evidence for such transient flash lines. Our measured flash event fraction (>30% at 95% confidence level) indicates that elevated mass loss is a common process occurring in massive stars that are about to explode as supernovae.
Subject headings and genre
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Gal-Yam, Avishay
(author)
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Schulze, SteveStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Weizmann Institute of Science, Israel(Swepub:su)stsc6413
(author)
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Yaron, Ofer
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Yang, Yi
(author)
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Soumagnac, Maayane
(author)
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Rigault, Mickael
(author)
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Strotjohann, Nora L.
(author)
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Ofek, Eran
(author)
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Sollerman, JesperStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)solle
(author)
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Masci, Frank J.
(author)
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Barbarino, Cristina
(author)
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Ho, Anna Y. Q.
(author)
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Fremling, Christoffer
(author)
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Perley, Daniel
(author)
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Nordin, Jakob
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Cenko, S. Bradley
(author)
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Adams, S.
(author)
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Adreoni, Igor
(author)
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Bellm, Eric C.
(author)
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Blagorodnova, Nadia
(author)
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Bulla, MattiaStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)mbull
(author)
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Burdge, Kevin
(author)
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De, Kishalay
(author)
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Dhawan, SuhailStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)sdhaw
(author)
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Drake, Andrew J.
(author)
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Duev, Dmitry A.
(author)
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Dugas, Alison
(author)
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Graham, Matthew
(author)
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Graham, Melissa L.
(author)
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Irani, Ido
(author)
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Jencson, Jacob
(author)
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Karamehmetoglu, EmirStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Aarhus University, Denmark(Swepub:su)emka6994
(author)
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Kasliwal, Mansi
(author)
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Kim, Young-Lo
(author)
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Kulkarni, Shrinivas
(author)
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Kupfer, Thomas
(author)
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Liang, Jingyi
(author)
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Mahabal, Ashish
(author)
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Miller, A. A.
(author)
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Prince, Thomas A.
(author)
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Riddle, Reed
(author)
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Sharma, Y.
(author)
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Smith, Roger
(author)
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Taddia, FrancescoStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Aarhus University, Denmark
(author)
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Taggart, Kirsty
(author)
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Walters, Richard
(author)
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Yan, Lin
(author)
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Stockholms universitetInstitutionen för astronomi
(creator_code:org_t)
Related titles
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In:Astrophysical Journal: American Astronomical Society912:10004-637X1538-4357
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- By the author/editor
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Bruch, Rachel J.
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Gal-Yam, Avishay
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Schulze, Steve
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Yaron, Ofer
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Yang, Yi
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Soumagnac, Maaya ...
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show more...
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Rigault, Mickael
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Strotjohann, Nor ...
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Ofek, Eran
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Sollerman, Jespe ...
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Masci, Frank J.
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Barbarino, Crist ...
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Ho, Anna Y. Q.
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Fremling, Christ ...
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Perley, Daniel
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Nordin, Jakob
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Cenko, S. Bradle ...
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Adams, S.
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Adreoni, Igor
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Bellm, Eric C.
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Blagorodnova, Na ...
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Bulla, Mattia
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Burdge, Kevin
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De, Kishalay
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Dhawan, Suhail
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Drake, Andrew J.
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Duev, Dmitry A.
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Dugas, Alison
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Graham, Matthew
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Graham, Melissa ...
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Irani, Ido
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Jencson, Jacob
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Karamehmetoglu, ...
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Kasliwal, Mansi
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Kim, Young-Lo
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Kulkarni, Shrini ...
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Kupfer, Thomas
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Liang, Jingyi
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Mahabal, Ashish
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Miller, A. A.
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Prince, Thomas A ...
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Riddle, Reed
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Sharma, Y.
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Smith, Roger
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Taddia, Francesc ...
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Taggart, Kirsty
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Walters, Richard
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Yan, Lin
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Stockholm University