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Title: 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 luminosity function. Subsequently, the mass of 56 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 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;more » consequently, their light curves are not as broad.« less
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [4] ;  [6] ;  [7] ;  [7] ;  [4] ;  [8] ;  [9] ;  [10] ;  [9] ;  [11] ;  [5] ;  [12]
  1. Liverpool John Moores Univ. (United Kingdom)
  2. Liverpool John Moores Univ. (United Kingdom); Max Planck Society, Garching (Germany). Max Planck Inst. for Astrophysik
  3. Inst. of Space Astrophyics and Cosmic Physics, Bologna (Italy); Scuola Normale Superiore (SNS), Pisa (Italy)
  4. Weizmann Inst. of Science, Rehovot (Israel)
  5. California Inst. of Technology (CalTech), Pasadena, CA (United States)
  6. Texas Tech Univ., Lubbock, TX (United States)
  7. Stockholm Univ. (Sweden)
  8. Univ. of California, Santa Barbara, CA (United States). Kavli Inst. for Theoretical Physics; 9Las Cumbres Observatory Global Telescope Network, Goleta, CA (United States)
  9. Univ. of California, Berkeley, CA (United States)
  10. California Inst. of Technology (CalTech), Pasadena, CA (United States); Carnegie Inst. of Science, Pasadena, CA (United States)
  11. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  12. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 458; Journal Issue: 3; Journal ID: ISSN 0035-8711
Royal Astronomical Society
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
OSTI Identifier: