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Photometric and spectroscopic evolution of the interacting transient AT 2016jbu(Gaia16cfr)

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cris.lastimport.scopus2024-02-12T19:59:35Z
dc.abstract.enWe present the results from a high-cadence, multiwavelength observation campaign of AT 2016jbu (aka Gaia16cfr), an interacting transient. This data set complements the current literature by adding higher cadence as well as extended coverage of the light-curve evolution and late-time spectroscopic evolution. Photometric coverage reveals that AT 2016jbu underwent significant photometric variability followed by two luminous events, the latter of which reached an absolute magnitude of M<SUB>V</SUB> ~ -18.5 mag. This is similar to the transient SN 2009ip whose nature is still debated. Spectra are dominated by narrow emission lines and show a blue continuum during the peak of the second event. AT 2016jbu shows signatures of a complex, non-homogeneous circumstellar material (CSM). We see slowly evolving asymmetric hydrogen line profiles, with velocities of 500 km s<SUP>-1</SUP> seen in narrow emission features from a slow-moving CSM, and up to 10 000 km s<SUP>-1</SUP> seen in broad absorption from some high-velocity material. Late-time spectra (~+1 yr) show a lack of forbidden emission lines expected from a core-collapse supernova and are dominated by strong emission from H, He I, and Ca II. Strong asymmetric emission features, a bumpy light curve, and continually evolving spectra suggest an inhibit nebular phase. We compare the evolution of H α among SN 2009ip-like transients and find possible evidence for orientation angle effects. The light-curve evolution of AT 2016jbu suggests similar, but not identical, circumstellar environments to other SN 2009ip-like transients.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorKankare, E.
dc.contributor.authorYoung, D. R.
dc.contributor.authorElias-Rosa, N.
dc.contributor.authorSkowron, Jan
dc.contributor.authorKuncarayakti, H.
dc.contributor.authorDelgado, A.
dc.contributor.authorInserra, C.
dc.contributor.authorPrieto, J. L.
dc.contributor.authorShappee, B. J.
dc.contributor.authorMeintjes, P.
dc.contributor.authorKotak, R.
dc.contributor.authorBlondin, S.
dc.contributor.authorMüller-Bravo, T. E.
dc.contributor.authorMaguire, K.
dc.contributor.authorMorrell, N.
dc.contributor.authorSoelen, B. van
dc.contributor.authorHanlon, L.
dc.contributor.authorDennefeld, M.
dc.contributor.authorDuffy, P.
dc.contributor.authorNyholm, A.
dc.contributor.authorMcCully, C.
dc.contributor.authorO'Neill, D.
dc.contributor.authorCallis, E.
dc.contributor.authorHoloien, T. W. -S.
dc.contributor.authorStevance, H. F.
dc.contributor.authorDong, Subo
dc.contributor.authorNicholl, M.
dc.contributor.authorReichart, D. E.
dc.contributor.authorLeeuwen, M. van
dc.contributor.authorMartin-Carrillo, A.
dc.contributor.authorTucker, B. E.
dc.contributor.authorHiramatsu, D.
dc.contributor.authorPignata, G.
dc.contributor.authorGalbany, L.
dc.contributor.authorBento, J.
dc.contributor.authorCartier, R.
dc.contributor.authorBenetti, S.
dc.contributor.authorSand, D.
dc.contributor.authorGromadzki, Mariusz
dc.contributor.authorEldridge, J. J.
dc.contributor.authorSchweyer, T.
dc.contributor.authorAbbot, H.
dc.contributor.authorTartaglia, L.
dc.contributor.authorWyrzykowski, Łukasz
dc.contributor.authorRau, A.
dc.contributor.authorPoleski, Radosław
dc.contributor.authorSzymański, Michał
dc.contributor.authorPietrukowicz, Paweł
dc.contributor.authorUlaczyk, Krzysztof
dc.contributor.authorKozłowski, Szymon
dc.contributor.authorPastorello, A.
dc.contributor.authorShahbandeh, M.
dc.contributor.authorHarrison, D. L.
dc.contributor.authorHodgkin, S. T.
dc.contributor.authorGutiérrez, C. P.
dc.contributor.authorHsiao, E.
dc.contributor.authorBose, S.
dc.contributor.authorChen, Ping
dc.contributor.authorSmartt, S. J.
dc.contributor.authorHowell, D. A.
dc.contributor.authorSollerman, J.
dc.contributor.authorStritzinger, M. D.
dc.contributor.authorHosseinzadeh, G.
dc.contributor.authorChen, T. -W.
dc.contributor.authorBrennan, S. J.
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorFraser, M.
dc.contributor.authorJohansson, J.
dc.contributor.authorBrown, P. J.
dc.contributor.authorSoszyński, Igor
dc.contributor.authorMonard, B.
dc.date.accessioned2024-01-25T16:36:46Z
dc.date.available2024-01-25T16:36:46Z
dc.date.copyright2021-02-18
dc.date.issued2022
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number4
dc.description.versionORIGINAL_AUTHOR
dc.description.volume513
dc.identifier.doi10.1093/MNRAS/STAC1243
dc.identifier.issn0035-8711
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/115843
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2022MNRAS.513.5642B
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.pages5642-5665
dc.rightsOther
dc.sciencecloudnosend
dc.titlePhotometric and spectroscopic evolution of the interacting transient AT 2016jbu(Gaia16cfr)
dc.typeJournalArticle
dspace.entity.typePublication