Monthly Notices of the Royal Astronomical Society

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dc.contributor.authorClark, Peter
dc.contributor.authorMaguire, Kate
dc.contributor.authorInserra, Cosimo
dc.contributor.authorPrentice, Simon
dc.contributor.authorStephen, J. Smartt
dc.contributor.authorContreras, Carlos
dc.contributor.authorHossenizadeh, Griffin
dc.contributor.authorHsiao, Eric Y.
dc.contributor.authorKankare, Erkki
dc.contributor.authorKasliwal, Mansi
dc.contributor.authorNugent, Peter
dc.contributor.authorShahbandeh, Melissa
dc.contributor.authorBaltay, Charles
dc.contributor.authorRabinowitz, David
dc.contributor.authorArcavi, Iair
dc.contributor.authorAshall, Chris
dc.contributor.authorBurns, Christopher R.
dc.contributor.authorCallis, Emma
dc.contributor.authorChen, Ting-Wan
dc.contributor.authorDiamond, Tiara
dc.contributor.authorFraser, Morgan
dc.contributor.authorHowell, D. Andrew
dc.contributor.authorKaramehmetoglu, Emir
dc.contributor.authorKotak, Rubina
dc.contributor.authorLyman, Joseph
dc.contributor.authorMorrell, Nidia
dc.contributor.authorPhillips, Mark
dc.contributor.authorPignata, Giuliano
dc.contributor.authorPursiainen, Miika
dc.contributor.authorSollerman, Jesper
dc.contributor.authorStritzinger, Maximilian
dc.contributor.authorSullivan, Mark
dc.contributor.authorYoung, David
dc.date.accessioned2021-10-25T14:19:16Z
dc.date.available2021-10-25T14:19:16Z
dc.date.issued2020-02
dc.description.abstractThis paper describes the rapidly evolving and unusual supernova LSQ13ddu, discovered by the La Silla-QUEST survey. LSQ13ddu displayed a rapid rise of just 4.8 ± 0.9 d to reach a peak brightness of −19.70 ± 0.02 mag in the LSQgr band. Early spectra of LSQ13ddu showed the presence of weak and narrow He I features arising from interaction with circumstellar material (CSM). These interaction signatures weakened quickly, with broad features consistent with those seen in stripped-envelope SNe becoming dominant around two weeks after maximum. The narrow He I velocities are consistent with the wind velocities of luminous blue variables but its spectra lack the typically seen hydrogen features. The fast and bright early light curve is inconsistent with radioactive 56Ni powering but can be explained through a combination of CSM interaction and an underlying 56Ni decay component that dominates the later time behaviour of LSQ13ddu. Based on the strength of the underlying broad features, LSQ13ddu appears deficient in He compared to standard SNe Ib. © 2019 The Author(s)es
dc.description.sponsorshipIndexación: Scopuses
dc.identifier.citationMonthly Notices of the Royal Astronomical SocietyOpen AccessVolume 492, Issue 2, Pages 2208 - 22281 February 2020es
dc.identifier.issn00358711
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/20611
dc.publisherOxford University Presses
dc.subjectCircumstellar matter; Supernovae: general; Supernovae: individual: LSQ13ddues
dc.titleMonthly Notices of the Royal Astronomical Societyes
dc.typeArtículoes
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