Multiwavelength analysis of three supernovae associated with gamma-ray bursts observed by GROND

Vista sencilla de ítem
dc.contributor.authorOlivares, E.F.
dc.contributor.authorGreiner, J.
dc.contributor.authorSchady, P.
dc.contributor.authorKlose, S.
dc.contributor.authorKrühler, T.
dc.contributor.authorRau, A.
dc.contributor.authorSavaglio, S.
dc.contributor.authorKann, D.A.
dc.contributor.authorPignata, G.
dc.contributor.authorElliott, J.
dc.contributor.authorRossi, A.
dc.contributor.authorNardini, M.
dc.contributor.authorAfonso, P.M.J.
dc.contributor.authorFilgas, R.
dc.contributor.authorNicuesa Guelbenzu, A.
dc.contributor.authorSchmidl, S.
dc.contributor.authorSudilovsky, V.
dc.date.accessioned2023-06-15T14:05:53Z
dc.date.available2023-06-15T14:05:53Z
dc.date.issued2015-05
dc.descriptionIndexación: Scopuses
dc.description.abstractContext. After the discovery of the first connection between γ-ray bursts (GRBs) and supernovae (SNe) almost two decades ago, tens of SN-like rebrightenings have been discovered and about seven solid associations have been spectroscopically confirmed to date. Aims. We determine the luminosity, evolution, and origin of three SN rebrightenings in GRB afterglow light curves at z ∼ 0.5 along with accurate determinations of the host-galaxy extinction. We estimate physical parameters of the SN explosions, such as synthesised 56Ni mass, ejecta mass, and kinetic energy. Methods. We employ GROND optical/NIR data and Swift X-ray/UV data to estimate the host-galaxy extinction by modelling the afterglow spectral energy distribution, to determine the SN luminosity and evolution, and to construct quasi-bolometric light curves. The latter are corrected for the contribution of the NIR-bands using data available in the literature and black-body fits. We employ Arnett's analytic approach to obtain the physical parameters of the explosion. Results. The SNe 2008hw, 2009nz, and 2010ma observed by GROND exhibit 0.80, 1.15, and 1.78 times the optical (r′-band) luminosity of SN 1998bw, respectively. While SN 2009nz exhibits an evolution similar to SN 1998bw, SNe 2008hw and 2010ma show earlier peak times. The quasi-bolometric light curves (340-2200 nm) confirm the large luminosity of SN 2010ma (1.4 × 10 43 erg s-1), while SNe 2008hw and 2009nz reached a peak luminosity closer to that of SN 1998bw. The modelling indicates in 56 Ni masses of around 0.4-0.5 MO. Conclusions. By means of a very comprehensive data set, we found that the luminosity and the 56Ni mass of SNe 2008hw, 2009nz, and 2010ma resembles those of other known GRB-associated SNe. These findings strengthens previous claims of GRB-SNe being brighter than stripped-envelope SNe unaccompanied by GRBs. © ESO, 2015.es
dc.description.urihttps://www.aanda.org/articles/aa/full_html/2015/05/aa21936-13/aa21936-13.html
dc.identifier.citationAstronomy and Astrophysics Volume 5771 May 2015 Article number A44es
dc.identifier.doi10.1051/0004-6361/201321936
dc.identifier.issn0004-6361
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/50725
dc.language.isoenes
dc.publisherEDP Scienceses
dc.rights.licenseAtribución 4.0 Internacional (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectGamma-ray burst: individual: GRB 081007es
dc.subjectGamma-ray burst: individual: GRB 091127es
dc.subjectGamma-ray burst: individual: GRB 101219Bes
dc.subjectSupernovae: individual: SN 2008hwes
dc.subjectSupernovae: individual: SN 2009nzes
dc.subjectSupernovae: individual: SN 2010maes
dc.titleMultiwavelength analysis of three supernovae associated with gamma-ray bursts observed by GRONDes
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
aa21936-13.pdf
Tamaño:
1.03 MB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO 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