The Type IIn Supernova SN 2010bt: The Explosion of a Star in Outburst

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dc.contributor.authorElias-Rosa, N.
dc.contributor.authorVan Dyk, S.D.
dc.contributor.authorBenetti, S.
dc.contributor.authorCappellaro, E.
dc.contributor.authorSmith, N.
dc.contributor.authorKotak, R.
dc.contributor.authorTuratto, M.
dc.contributor.authorFilippenko, A.V.
dc.contributor.authorPignata, G.
dc.contributor.authorFox, O.D.
dc.contributor.authorGalbany, L.
dc.contributor.authorGonzález-Gaitán, S.
dc.contributor.authorMiluzio, M.
dc.contributor.authorMonard, L.A.G.
dc.contributor.authorErgon, M.
dc.date.accessioned2019-10-28T13:14:16Z
dc.date.available2019-10-28T13:14:16Z
dc.date.issued2018
dc.descriptionIndexación: Scopus.es
dc.description.abstractIt is well known that massive stars (M > 8 M ) evolve up to the collapse of the stellar core, resulting in most cases in a supernova (SN) explosion. Their heterogeneity is related mainly to different configurations of the progenitor star at the moment of the explosion and to their immediate environments. We present photometry and spectroscopy of SN 2010bt, which was classified as a Type IIn SN from a spectrum obtained soon after discovery and was observed extensively for about 2 months. After the seasonal interruption owing to its proximity to the Sun, the SN was below the detection threshold, indicative of a rapid luminosity decline. We can identify the likely progenitor with a very luminous star (log L/L ≈ 7) through comparison of Hubble Space Telescope images of the host galaxy prior to explosion with those of the SN obtained after maximum light. Such a luminosity is not expected for a quiescent star, but rather for a massive star in an active phase. This progenitor candidate was later confirmed via images taken in 2015 (∼5 yr post-discovery), in which no bright point source was detected at the SN position. Given these results and the SN behavior, we conclude that SN 2010bt was likely a Type IIn SN and that its progenitor was a massive star that experienced an outburst shortly before the final explosion, leading to a dense H-rich circumstellar environment around the SN progenitor. © 2018. The American Astronomical Society. All rights reserved.es
dc.description.urihttps://iopscience.iop.org/article/10.3847/1538-4357/aac510
dc.identifier.citationAstrophysical Journal, 860(1), art. no. 68es
dc.identifier.issn0004-637X
dc.identifier.other10.3847/1538-4357/aac510
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/10555
dc.language.isoenes
dc.publisherInstitute of Physics Publishinges
dc.subjectGalaxies: individual (NGC 7130)es
dc.subjectStars: evolutiones
dc.subjectSupernovae: generales
dc.subjectSupernovae: individual (SN 2010bt)es
dc.titleThe Type IIn Supernova SN 2010bt: The Explosion of a Star in Outburstes
dc.typeArtículoes
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