Type II supernovae in low-luminosity host galaxies

Vista sencilla de ítem
dc.contributor.authorGutiérrez, C.P.
dc.contributor.authorAnderson, J.P.
dc.contributor.authorSullivan, M.
dc.contributor.authorDessart, L.
dc.contributor.authorGonzález-Gaitan, S.
dc.contributor.authorGalbany, L.
dc.contributor.authorDimitriadis, G.
dc.contributor.authorArcavi, I.
dc.contributor.authorBufano, F.
dc.contributor.authorChen, T.-W.
dc.contributor.authorDennefeld, M.
dc.contributor.authorGromadzki, M.
dc.contributor.authorHaislip, J.B.
dc.contributor.authorHosseinzadeh, G.
dc.contributor.authorHowell, D.A.
dc.contributor.authorInserra, C.
dc.contributor.authorKankare, E.
dc.contributor.authorLeloudas, G.
dc.contributor.authorMaguire, K.
dc.contributor.authorMcCully, C.
dc.contributor.authorMorrell, N.
dc.contributor.authorOlivares, E.F.
dc.contributor.authorPignata, G.
dc.contributor.authorReichart, D.E.
dc.contributor.authorReynolds, T.
dc.contributor.authorSmartt, S.J.
dc.contributor.authorSollerman, J.
dc.contributor.authorTaddia, F.
dc.contributor.authorTakáts, K.
dc.contributor.authorTerreran, G.
dc.contributor.authorValenti, S.
dc.contributor.authorYoung, D.R.
dc.date.accessioned2019-11-28T14:04:58Z
dc.date.available2019-11-28T14:04:58Z
dc.date.issued2018-09
dc.descriptionIndexación: Scopus.es
dc.description.abstractWe present an analysis of a new sample of type II core-collapse supernovae (SNe II) occurring within low-luminosity galaxies, comparing these with a sample of events in brighter hosts. Our analysis is performed comparing SN II spectral and photometric parameters and estimating the influence of metallicity (inferred from host luminosity differences) on SN II transient properties. We measure the SN absolute magnitude at maximum, the light-curve plateau duration, the optically thick duration, and the plateau decline rate in the V band, together with expansion velocities and pseudo-equivalent-widths (pEWs) of several absorption lines in the SN spectra. For the SN host galaxies, we estimate the absolute magnitude and the stellar mass, a proxy for the metallicity of the host galaxy. SNe II exploding in low-luminosity galaxies display weaker pEWs of Fe II λ5018, confirming the theoretical prediction that metal lines in SN II spectra should correlate with metallicity.We also find that SNe II in low-luminosity hosts have generally slower declining light curves and display weaker absorption lines. We find no relationship between the plateau duration or the expansion velocities with SN environment, suggesting that the hydrogen envelope mass and the explosion energy are not correlated with the metallicity of the host galaxy. This result supports recent predictions that mass-loss for red supergiants is independent of metallicity. © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.es
dc.description.urihttps://academic.oup.com/mnras/article/479/3/3232/5038383
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 479(3), pp. 3232-3253.es
dc.identifier.issn0035-8711
dc.identifier.otherDOI: 10.1093/mnras/sty1581
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/10870
dc.language.isoenes
dc.publisherOxford University Presses
dc.subjectGalaxies: generales
dc.subjectSupernovae: generales
dc.titleType II supernovae in low-luminosity host galaxieses
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
Gutierrez_C_Type_II_supernovae.pdf
Tamaño:
1.51 MB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLES
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
FCE - Artículos de Revista