The type IIB supernova 2011DH from a supergiant progenitor
| cic.isFulltext | true | es |
| cic.isPeerReviewed | true | es |
| cic.lugarDesarrollo | Universidad Nacional de La Plata | es |
| cic.version | info:eu-repo/semantics/submittedVersion | es |
| dc.date.accessioned | 2016-09-13T15:03:10Z | |
| dc.date.available | 2016-09-13T15:03:10Z | |
| dc.identifier.uri | https://digital.cic.gba.gob.ar/handle/11746/4220 | |
| dc.title | The type IIB supernova 2011DH from a supergiant progenitor | en |
| dc.type | Artículo | es |
| dcterms.abstract | A set of hydrodynamical models based on stellar evolutionary progenitors is used to study the nature of SN 2011dh. Our modeling suggests that a large progenitor star —with R 200 R⊙—, is needed to reproduce the early light curve of SN 2011dh. This is consistent with the suggestion that the yellow super-giant star detected at the location of the SN in deep pre-explosion images is the progenitor star. From the main peak of the bolometric light curve and expansion velocities we constrain the mass of the ejecta to be 2 M⊙, the explosion energy to be E = 6 − 10 × 1050 erg, and the 56Ni mass to be approximately 0.06 M⊙. The progenitor star was composed of a helium core of 3 to 4 M⊙ and a thin hydrogen-rich envelope of 0.1 M⊙ with a main sequence mass estimated to be in the range of 12–15 M⊙. Our models rule out progenitors with helium-core masses larger than 8 M⊙, which correspond to MZAMS & 25 M⊙. This suggests that a single star evolutionary scenario for SN 2011dh is unlikely. | en |
| dcterms.creator.author | Bersten, Melina | es |
| dcterms.creator.author | Benvenuto, Omar Gustavo | es |
| dcterms.creator.author | Nomoto, Ken'ichi | es |
| dcterms.creator.author | Ergon, Mattias | es |
| dcterms.creator.author | Folatelli, Gastón | es |
| dcterms.creator.author | Sollerman, Jesper | es |
| dcterms.creator.author | Benetti, Stefano | es |
| dcterms.creator.author | Botticella, María Teresa | es |
| dcterms.creator.author | Fraser, Morgan | es |
| dcterms.creator.author | Kotak, Rubina | es |
| dcterms.extent | 20 p. | es |
| dcterms.identifier.other | DOI:10.1088/0004-637X/757/1/31 | es |
| dcterms.identifier.url | Documento completo | es |
| dcterms.isPartOf.issue | vol. 757, nº 1 | es |
| dcterms.isPartOf.series | Astrophysical Journal | es |
| dcterms.issued | 2012 | |
| dcterms.language | Inglés | es |
| dcterms.license | Attribution 4.0 International (BY 4.0) | es |
| dcterms.publisher | IOPscience | es |
| dcterms.subject | hydrodynamics | en |
| dcterms.subject | SN 2011dh | en |
| dcterms.subject | supernova | es |
| dcterms.subject.materia | Astronomía | es |
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