Broad-emission-line dominated hydrogen-rich luminous supernovae

Vista sencilla de ítem
dc.contributor.authorPessi, P.J.
dc.contributor.authorAnderson, J.P.
dc.contributor.authorFolatelli, G.
dc.contributor.authorDessart, L.
dc.contributor.authorGonzález-Gaitán, S.
dc.contributor.authorMöller, A.
dc.contributor.authorGutiérrez, C.P.
dc.contributor.authorMattila, S.
dc.contributor.authorReynolds, T.M.
dc.contributor.authorCharalampopoulos, P.
dc.contributor.authorFilippenko, A.V.
dc.contributor.authorGalbany, L.
dc.contributor.authorGal-Yam, A.
dc.contributor.authorGromadzki, M.
dc.contributor.authorHiramatsu, D.
dc.contributor.authorHowell, D.A.
dc.contributor.authorInserra, C.
dc.contributor.authorKankare, E.
dc.contributor.authorLunnan, R.
dc.contributor.authorMartinez, L.
dc.contributor.authorMcCully, C.
dc.contributor.authorMeza, N.
dc.contributor.authorMüller-Bravo, T.E.
dc.contributor.authorNicholl, M.
dc.contributor.authorPellegrino, C.
dc.contributor.authorPignata, G.
dc.contributor.authorSollerman, J.
dc.contributor.authorTucker, B.E.
dc.contributor.authorWang, X.
dc.contributor.authorYoung, D.R.
dc.date.accessioned2023-11-22T16:42:30Z
dc.date.available2023-11-22T16:42:30Z
dc.date.issued2023-08-01
dc.descriptionINDEXACIÓN: SCOPUS.es
dc.description.abstractHydrogen-rich Type II supernovae (SNe II) are the most frequently observed class of core-collapse SNe (CCSNe). However, most studies that analyse large samples of SNe II lack events with absolute peak magnitudes brighter than −18.5 mag at rest-frame optical wavelengths. Thanks to modern surveys, the detected number of such luminous SNe II (LSNe II) is growing. There exist several mechanisms that could produce luminous SNe II. The most popular propose either the presence of a central engine (a magnetar gradually spinning down or a black hole accreting fallback material) or the interaction of supernova ejecta with circumstellar material (CSM) that turns kinetic energy into radiation energy. In this work, we study the light curves and spectral series of a small sample of six LSNe II that show peculiarities in their H α profile, to attempt to understand the underlying powering mechanism. We favour an interaction scenario with CSM that is not dense enough to be optically thick to electron scattering on large scales – thus, no narrow emission lines are observed. This conclusion is based on the observed light curve (higher luminosity, fast decline, blue colours) and spectral features (lack of persistent narrow lines, broad H α emission, lack of H α absorption, weak, or non-existent metal lines) together with comparison to other luminous events available in the literature. We add to the growing evidence that transients powered by ejecta–CSM interaction do not necessarily display persistent narrow emission lines. © 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.es
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, Volume 523, Issue 4, Pages 5315 - 5340, 1 August 2023es
dc.identifier.doi10.1093/mnras/stad1822
dc.identifier.issn00358711
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/54032
dc.language.isoenes
dc.publisherOxford University Presses
dc.rights.licenseCC BY 4.0 DEED Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectSN 2017gppes
dc.subjectSN 2017hbjes
dc.subjectSN 2017hxzes
dc.subjectSN 2018aqles
dc.subjectSN 2018eph)es
dc.subjecttransients: supernovae – supernovae: individual (SN 2017cfoes
dc.titleBroad-emission-line dominated hydrogen-rich luminous supernovaees
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
stad1822.pdf
Tamaño:
9.84 MB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLÉS
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