TY - JOUR
T1 - The bolometric light curves and physical parameters of stripped-envelope supernovae
AU - Prentice, S. J.
AU - Mazzali, P. A.
AU - Pian, E.
AU - Gal-Yam, A.
AU - Kulkarni, S. R.
AU - Rubin, A.
AU - Corsi, A.
AU - Fremling, C.
AU - Sollerman, J.
AU - Yaron, O.
AU - Arcavi, I.
AU - Zheng, W.
AU - Kasliwal, M. M.
AU - Filippenko, A. V.
AU - Cenko, S. B.
AU - Cao, Y.
AU - Nugent, P. E.
N1 - Publisher Copyright:
© 2016 The Authors.
PY - 2016/3/8
Y1 - 2016/3/8
N2 - 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 Lp, 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 Lp, in erg s-1, of log(Lp) = 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 MNi = 0.34, 0.16, 0.14, and 0.11 M⊙, respectively. SNe Ic-BL, and to a lesser extent SNe Ic, typically rise from Lp/2 to Lp more quickly than SNe Ib/IIb; consequently, their light curves are not as broad.
AB - 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 Lp, 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 Lp, in erg s-1, of log(Lp) = 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 MNi = 0.34, 0.16, 0.14, and 0.11 M⊙, respectively. SNe Ic-BL, and to a lesser extent SNe Ic, typically rise from Lp/2 to Lp more quickly than SNe Ib/IIb; consequently, their light curves are not as broad.
KW - Supernovae: General
UR - http://www.scopus.com/inward/record.url?scp=84964782076&partnerID=8YFLogxK
U2 - 10.1093/mnras/stw299
DO - 10.1093/mnras/stw299
M3 - Article
AN - SCOPUS:84964782076
SN - 0035-8711
VL - 458
SP - 2973
EP - 3002
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -