Subir material

Suba sus trabajos a SEDICI, para mejorar notoriamente su visibilidad e impacto

 

Mostrar el registro sencillo del ítem

dc.date.accessioned 2020-04-21T17:33:37Z
dc.date.available 2020-04-21T17:33:37Z
dc.date.issued 2015-11
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/93907
dc.description.abstract We present optical and near-infrared observations of the type IIb supernova (SN) 2011fu from a few days to ∼300 d after explosion. The SN presents a double-peaked light curve (LC) similar to that of SN 1993J, although more luminous and with a longer cooling phase after the primary peak. The spectral evolution is also similar to SN 1993J’s, with hydrogen dominating the spectra to ∼40 d, then helium gaining strength, and nebular emission lines appearing from ∼60 d post-explosion. The velocities derived from the P-Cygni absorptions are overall similar to those of other type IIb SNe. We have found a strong similarity between the oxygen and magnesium line profiles at late times, which suggests that these lines are forming at the same location within the ejecta. The hydrodynamical modelling of the pseudo-bolometric LC and the observed photospheric velocities suggest that SN 2011fu was the explosion of an extended star (R ∼ 450 R☉), in which 1.3 × 1051 erg of kinetic energy were released and 0.15 M of 56Ni were synthesized. In addition, a better reproduction of the observed early pseudo-bolometric LC is achieved if a more massive H-rich envelope than for other type IIb SNe is considered (0.3 M☉). The hydrodynamical modelling of the LC and the comparison of our late-time spectra with nebular spectral models for type IIb SNe, point to a progenitor for SN 2011fu with a Zero Age Main Sequence (ZAMS) mass of 13–18 M☉. en
dc.format.extent 95–114 es
dc.language en es
dc.subject supernovae: general es
dc.subject supernovae: individual: SN 2011fu es
dc.title SN 2011fu: a type IIb supernova with a luminous double-peaked light curve en
dc.type Articulo es
sedici.identifier.uri https://academic.oup.com/mnras/article-abstract/454/1/95/1132801/SN-2011fu-a-type-IIb-supernova-with-a-luminous?redirectedFrom=fulltext es
sedici.identifier.uri https://ri.conicet.gov.ar/handle/11336/13949 es
sedici.identifier.other https://doi.org/10.1093/mnras/stv1972 es
sedici.identifier.other hdl:11336/13949 es
sedici.identifier.issn 0035-8711 es
sedici.creator.person Morales Garoffolo, A. es
sedici.creator.person Elias Rosa, N. es
sedici.creator.person Bersten, Melina Cecilia es
sedici.creator.person Jerkstrand, A. es
sedici.creator.person Taubenberger, S. es
sedici.creator.person Benetti, S. es
sedici.creator.person Cappellaro, E. es
sedici.creator.person Kotak, R. es
sedici.creator.person Pastorello, A. es
sedici.creator.person Bufano, F. es
sedici.creator.person Domínguez, R. M. es
sedici.creator.person Ergon, M. es
sedici.creator.person Fraser, M. es
sedici.creator.person Gao, X. es
sedici.creator.person García, E. es
sedici.creator.person Howell, D. A. es
sedici.creator.person Isern, J. es
sedici.creator.person Smartt, S. J. es
sedici.creator.person Tomasella, L. es
sedici.creator.person Valenti, S. es
sedici.subject.materias Astronomía es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
mods.originInfo.place Instituto de Astrofísica de La Plata es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Monthly Notices of the Royal Astronomical Society es
sedici.relation.journalVolumeAndIssue vol. 454, no. 1 es


Descargar archivos

Este ítem aparece en la(s) siguiente(s) colección(ones)

Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)