Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/29973
Titolo: | Radiation-hydrodynamical modelling of underluminous Type II plateau supernovae | Autori: | Pumo, M. L. ZAMPIERI, Luca Spiro, S. PASTORELLO, Andrea BENETTI, Stefano CAPPELLARO, Enrico Manicò, G. TURATTO, Massimo |
Data pubblicazione: | 2017 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 464 | Fascicolo: | 3 | Da pagina:: | 3013 | Abstract: | With the aim of improving our knowledge about the nature of the progenitors of low-luminosity Type II plateau supernovae (LL SNe IIP), we made radiation-hydrodynamical models of the well-sampled LL SNe IIP 2003Z, 2008bk and 2009md. For these three SNe, we infer explosion energies of 0.16-0.18 foe, radii at explosion of 1.8-3.5 × 10<SUP>13</SUP> cm and ejected masses of 10-11.3 M<SUB>☉</SUB>. The estimated progenitor mass on the main sequence is in the range ∼13.2-15.1 M<SUB>☉</SUB> for SN 2003Z and ∼11.4-12.9 M<SUB>☉</SUB> for SNe 2008bk and 2009md, in agreement with estimates from observations of the progenitors. These results together with those for other LL SNe IIP modelled in the same way enable us also to conduct a comparative study on this SN sub-group. The results suggest that (a) the progenitors of faint SNe IIP are slightly less massive and have less energetic explosions than those of intermediate-luminosity SNe IIP; (b) both faint and intermediate-luminosity SNe IIP originate from low-energy explosions of red (or yellow) supergiant stars of low to intermediate mass; (c) some faint objects may also be explained as electron-capture SNe from massive super-asymptotic giant branch stars; and (d) LL SNe IIP form the underluminous tail of the SNe IIP family, where the main parameter `guiding' the distribution seems to be the ratio of the total explosion energy to the ejected mass. Further hydrodynamical studies should be performed and compared to a more extended sample of LL SNe IIP before drawing any conclusion on the relevance of fall-back to this class of events. | URI: | http://hdl.handle.net/20.500.12386/29973 | URL: | http://arxiv.org/abs/1610.02981v1 https://academic.oup.com/mnras/article/464/3/3013/2417371 |
ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stw2625 | Bibcode ADS: | 2017MNRAS.464.3013P | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
stw2625.pdf | Pdf editoriale | 753.25 kB | Adobe PDF | Visualizza/apri |
Page view(s)
51
controllato il 24-apr-2024
Download(s)
13
controllato il 24-apr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.