Luminous Type II supernovae for their low expansion velocities
Author | dc.contributor.author | Rodríguez, Ó. | |
Author | dc.contributor.author | Pignata, G. | |
Author | dc.contributor.author | Anderson, J. P. | |
Author | dc.contributor.author | Moriya, T. J. | |
Author | dc.contributor.author | Clocchiatti, A. | |
Author | dc.contributor.author | Förster Burón, Francisco | |
Author | dc.contributor.author | Prieto, J.L. | |
Author | dc.contributor.author | Phillips, M. M. | |
Author | dc.contributor.author | Burns, C. R. | |
Author | dc.contributor.author | Contreras, C. | |
Author | dc.contributor.author | Folatelli, G. | |
Author | dc.contributor.author | Gutiérrez, C. P. | |
Author | dc.contributor.author | Hamuy Wackenhut, Mario | |
Author | dc.contributor.author | Morrell, N. I. | |
Author | dc.contributor.author | Stritzinger, M. D. | |
Author | dc.contributor.author | Suntzeff, N. B. | |
Author | dc.contributor.author | Benetti, S. | |
Author | dc.contributor.author | Cappellaro, E. | |
Author | dc.contributor.author | Elias Rosa, N. | |
Author | dc.contributor.author | Pastorello, A. | |
Author | dc.contributor.author | Turatto, M. | |
Author | dc.contributor.author | Maza Sancho, José María | |
Author | dc.contributor.author | Antezana, Roberto | |
Author | dc.contributor.author | Cartier, R. | |
Author | dc.contributor.author | González Muñoz, Luis | |
Author | dc.contributor.author | Haislip, J. B. | |
Author | dc.contributor.author | Kouprianov, V. | |
Author | dc.contributor.author | López, P. | |
Author | dc.contributor.author | Marchi Lasch, Sebastián | |
Author | dc.contributor.author | Reichart, D. | |
Admission date | dc.date.accessioned | 2020-07-14T20:46:43Z | |
Available date | dc.date.available | 2020-07-14T20:46:43Z | |
Publication date | dc.date.issued | 2020 | |
Cita de ítem | dc.identifier.citation | MNRAS 494, 5882–5901 (2020) | es_ES |
Identifier | dc.identifier.other | 10.1093/mnras/staa1133 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/175976 | |
Abstract | dc.description.abstract | We present optical and near-infrared data of three Type II supernovae (SNe II), SN 2008bm, SN 2009aj, and SN 2009au. These SNe display the following common characteristics: signs of early interaction of the ejecta with circumstellar material (CSM), blue B - V colours, weakness of metal lines, low expansion velocities, and V-band absolute magnitudes 2-3 mag brighter than those expected for normal SNe II based on their expansion velocities. Two more SNe reported in the literature (SN 1983K and LSQ13fn) share properties similar to our sample. Analysing this set of five SNe II, which are luminous for their low expansion velocities (LLEV), we find that their properties can be reproduced assuming ejecta-CSM interaction that lasts between 4 and 11 weeks post-explosion. The contribution of this interaction to the radiation field seems to be the dominant component determining the observed weakness of metal lines in the spectra rather than the progenitor metallicity. Based on hydrodynamic simulations, we find that the interaction of the ejecta with a CSM of similar to 3.6 M-circle dot can reproduce the light curves and expansion velocities of SN 2009aj. Using data collected by the Chilean Automatic Supernova Search, we estimate an upper limit for the LLEV SNe II fraction to be 2-4 per cent of all normal SNe II. With the current data set, it is not clear whether the LLEV events are a separated class of SNe II with a different progenitor system, or whether they are the extreme of a continuum mediated by CSM interaction with the rest of the normal SN II population. | es_ES |
Patrocinador | dc.description.sponsorship | CSP-I by NSF AST-0306969 AST-0607438 AST-1008343 Ministry of Economy, Development, and Tourism's Millennium Science Initiative IC120009 CONICYT PAI/INDUSTRIA 79090016 Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science JP17H02864 JP18K13585 Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science Comisión Nacional de Investigación Cientifica y Tecnológica (CONICYT) CONICYT FONDECYT 1191038 EU/FP7-ERC grant 615929 Independent Research Fund Denmark 8021-00170B VILLUM FONDEN 13261 National Science Foundation (NSF) AST-1613455 NSF through Texas A&M University Mitchell/Heep/Munnerlyn Chair in Observational Astronomy George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy European Southern Observatory under ESO programmes 082.A0526 083.D-0970 Gemini Observatory, Cerro Pachon, Chile (Gemini Program) GS-2009A-Q-43 | es_ES |
Lenguage | dc.language.iso | en | es_ES |
Publisher | dc.publisher | Oxford University Press | es_ES |
Type of license | dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | * |
Link to License | dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | * |
Source | dc.source | Monthly Notices of the Royal Astronomical Society | es_ES |
Keywords | dc.subject | Circumstella rmatter | es_ES |
Keywords | dc.subject | Supernovae: general | es_ES |
Keywords | dc.subject | Supernovae: individual: SN1983K | es_ES |
Keywords | dc.subject | Supernovae: individual: SN 2008bm | es_ES |
Keywords | dc.subject | Supernovae: individual: SN 2009aj | es_ES |
Keywords | dc.subject | Supernovae: individual: SN 2009au | es_ES |
Keywords | dc.subject | Supernovae: individual: LSQ13fn | es_ES |
Título | dc.title | Luminous Type II supernovae for their low expansion velocities | es_ES |
Document type | dc.type | Artículo de revista | es_ES |
dcterms.accessRights | dcterms.accessRights | Acceso Abierto | |
Cataloguer | uchile.catalogador | ctc | es_ES |
Indexation | uchile.index | Artículo de publicación ISI | |
Indexation | uchile.index | Artículo de publicación SCOPUS |
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