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http://hdl.handle.net/20.500.12386/26151
Titolo: | The bolometric light curves and physical parameters of stripped-envelope supernovae | Autori: | Prentice, S. J. Mazzali, P. A. PIAN, Elena Gal-Yam, A. Kulkarni, S. R. Rubin, A. Corsi, A. Fremling, C. Sollerman, J. Yaron, O. Arcavi, I. Zheng, W. Kasliwal, M. M. Filippenko, A. V. Cenko, S. B. Cao, Y. Nugent, P. E. |
Data pubblicazione: | 2016 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 458 | Fascicolo: | 3 | Da pagina:: | 2973 | Abstract: | The optical and optical/near-infrared pseudo-bolometric light curves of 85 stripped-envelope supernovae (SNe) are constructed using a consistent method and a standard cosmology. The light curves are analysed to derive temporal characteristics and peak luminosity L<SUB>p</SUB>, enabling the construction of a luminosity function. Subsequently, the mass of <SUP>56</SUP>Ni synthesized in the explosion, along with the ratio of ejecta mass to ejecta kinetic energy, are found. Analysis shows that host-galaxy extinction is an important factor in accurately determining luminosity values as it is significantly greater than Galactic extinction in most cases. It is found that broad-lined SNe Ic (SNe Ic-BL) and gamma-ray burst SNe are the most luminous subtypes with a combined median L<SUB>p</SUB>, in erg s<SUP>-1</SUP>, of log(L<SUB>p</SUB>) = 43.00 compared to 42.51 for SNe Ic, 42.50 for SNe Ib, and 42.36 for SNe IIb. It is also found that SNe Ic-BL synthesize approximately twice the amount of <SUP>56</SUP>Ni compared with SNe Ic, Ib, and IIb, with median M<SUB>Ni</SUB> = 0.34, 0.16, 0.14, and 0.11 M<SUB>☉</SUB>, respectively. SNe Ic-BL, and to a lesser extent SNe Ic, typically rise from L<SUB>p</SUB>/2 to L<SUB>p</SUB> more quickly than SNe Ib/IIb; consequently, their light curves are not as broad. | URI: | http://hdl.handle.net/20.500.12386/26151 | URL: | https://academic.oup.com/mnras/article/458/3/2973/2589138 | ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stw299 | Bibcode ADS: | 2016MNRAS.458.2973P | Fulltext: | open |
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