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Long-rising Type II...
Long-rising Type II Supernovae in the Zwicky Transient Facility Census of the Local Universe
- Article/chapterEnglish2023
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LIBRIS-ID:oai:DiVA.org:su-225388
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-225388URI
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https://doi.org/10.3847/1538-4357/ad036fDOI
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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
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SN 1987A was an unusual hydrogen-rich core-collapse supernova originating from a blue supergiant star. Similar blue supergiant explosions remain a small family of events, and are broadly characterized by their long rises to peak. The Zwicky Transient Facility Census of the Local Universe (CLU) experiment aims to construct a spectroscopically complete sample of transients occurring in galaxies from the CLU galaxy catalog. We identify 13 long-rising (>40 days) Type II supernovae from the volume-limited CLU experiment during a 3.5 yr period from 2018 June to 2021 December, approximately doubling the previously known number of these events. We present photometric and spectroscopic data of these 13 events, finding peak r-band absolute magnitudes ranging from −15.6 to −17.5 mag and the tentative detection of Ba ii lines in nine events. Using our CLU sample of events, we derive a long-rising Type II supernova rate of Mpc−3 yr−1, ≈1.4% of the total core-collapse supernova rate. This is the first volumetric rate of these events estimated from a large, systematic, volume-limited experiment.
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Kasliwal, Mansi M.
(author)
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Tzanidakis, Anastasios
(author)
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De, Kishalay
(author)
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Fremling, Christoffer
(author)
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Sollerman, Jesper,1968-Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)solle
(author)
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Gal-Yam, Avishay
(author)
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Miller, Adam A.
(author)
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Adams, Scott
(author)
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Aloisi, Robert
(author)
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Andreoni, Igor
(author)
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Chu, Matthew
(author)
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Cook, David
(author)
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Das, Kaustav Kashyap
(author)
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Dugas, Alison
(author)
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Groom, Steven L.
(author)
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Ho, Anna Y. Q.
(author)
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Karambelkar, Viraj
(author)
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Neill, James D.
(author)
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Masci, Frank J.
(author)
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Medford, Michael S.
(author)
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Purdum, Josiah
(author)
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Sharma, Yashvi
(author)
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Smith, Roger
(author)
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Stein, Robert
(author)
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Yan, Lin
(author)
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Yao, Yuhan
(author)
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Zhang, Chaoran
(author)
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Stockholms universitetInstitutionen för astronomi
(creator_code:org_t)
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In:Astrophysical Journal959:20004-637X1538-4357
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Sit, Tawny
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Kasliwal, Mansi ...
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Tzanidakis, Anas ...
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De, Kishalay
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Fremling, Christ ...
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Sollerman, Jespe ...
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Gal-Yam, Avishay
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Miller, Adam A.
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Adams, Scott
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Aloisi, Robert
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Andreoni, Igor
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Chu, Matthew
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Cook, David
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Das, Kaustav Kas ...
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Dugas, Alison
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Groom, Steven L.
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Ho, Anna Y. Q.
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Karambelkar, Vir ...
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Neill, James D.
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Masci, Frank J.
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Medford, Michael ...
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Purdum, Josiah
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Sharma, Yashvi
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Smith, Roger
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Stein, Robert
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Yan, Lin
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Yao, Yuhan
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Zhang, Chaoran
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NATURAL SCIENCES
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Stockholm University