SN 2005bf: A Transition Event Between Type Ib/c Supernovae and Gamma Ray Bursts
Article 2005 en
Authors
GF
G. Folatelli
CC
C. Contreras
MP
M. M. Phillips
Abstract
1 min read
We present u ′ g ′ r ′ i ′ BV photometry and optical spectroscopy of the Type Ib/Ic SN 2005bf covering the first ∼100 days following discovery. The u ′ g ′ BV light curves displayed an unprecedented morphology among Type Ib/Ic supernovae, with an initial maximum some 2 weeks after discovery, and a second, main maximum about 25 days after that. The bolometric light curve indicates that SN 2005bf was a remarkably luminous event, radiating at least 6.3 ×10 42 erg s −1 at maximum light, and a total of 2.1 × 10 49 erg during the first 75 days after the explosion. Spectroscopically, SN 2005bf underwent a unique transformation 1
G. Folatelli, C. Contreras, M. M. Phillips, S. E. Woosley, С. И. Блинников, N. Morrell, N. B. Suntzeff, Brian L. Lee, M. Hamuy, S. González, W. Krzemiński, Miguel Roth, Weidong Li, Alexei V Filippenko, R. J. Foley, Wendy L. Freedman, Barry F. Madore, S. E. Persson, D. C. Murphy, S. Boissier, Gaspar Galaz, L. González, Patrick J. McCarthy, Andrew McWilliam, W. Pych
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