The bolometric light curves and physical parameters of stripped-envelope supernovae

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 p, enabling the construction of a l...

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Bibliographic Details
Published in:	Monthly notices of the Royal Astronomical Society Vol. 458; no. 3; pp. 2973 - 3002
Main Authors:	Prentice, S. J., Mazzali, P. A., Pian, E., 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.
Format:	Journal Article
Language:	English
Published:	London Oxford University Press 21-05-2016 Royal Astronomical Society
Subjects:	ASTRONOMY AND ASTROPHYSICS Cosmology Ejecta Extinction Gamma ray bursts Kinetic energy Kinetics Luminosity Physical properties Star & galaxy formation Supernovae supernovae: general supernovae: general
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Summary:	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 p, enabling the construction of a luminosity function. Subsequently, the mass of 56Ni 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 p, in erg s−1, of log(L p) = 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 56Ni compared with SNe Ic, Ib, and IIb, with median M Ni = 0.34, 0.16, 0.14, and 0.11 M⊙, respectively. SNe Ic-BL, and to a lesser extent SNe Ic, typically rise from L p/2 to L p more quickly than SNe Ib/IIb; consequently, their light curves are not as broad.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 AC02-05CH11231 USDOE Office of Science (SC)
ISSN:	0035-8711 1365-2966 1365-2966
DOI:	10.1093/mnras/stw299