ESC observations of SN 2005cf - I. Photometric evolution of a normal Type Ia supernova

作者：Pastorello A^*; Taubenberger S; Elias Rosa N; Mazzali P A; Pignata G; Cappellaro E; Garavini G; Nobili S; Anupama G C; Bayliss D D R; Benetti S; Bufano F; Chakradhari N K; Kotak R; Goobar A; Navasardyan H; Patat F; Sahu D K; Salvo M; Schmidt B P; Stanishev V; Turatto M; Hillebrandt W

来源：Monthly Notices of the Royal Astronomical Society, 2007, 376(3): 1301-1316.

DOI：10.1111/j.1365-2966.2007.11527.x

• supernovae : general
• supernovae : individual : SN 2005cf
• supernovae : individual : SN 1992al
• supernovae : individual : SN 2001el
• galaxies : individual : MCG-01-39-003
• galaxies : individual : NGC 5917

We present early-time optical and near-infrared photometry of supernova (SN) 2005cf. The observations, spanning a period from about 12 d before to 3 months after maximum, have been obtained through the coordination of observational efforts of various nodes of the European Supernova Collaboration and including data obtained at the 2-m Himalayan Chandra Telescope. From the observed light curve we deduce that SN 2005cf is a fairly typical SN Ia with a post-maximum decline [Delta m(15)(B)(true) = 1.12] close to the average value and a normal luminosity of M-B,M-max = -19.39 +/- 0.33. Models of the bolometric light curve suggest a synthesized Ni-56 mass of about 0.7 M-circle dot. The negligible host galaxy interstellar extinction and its proximity make SN 2005cf a good Type Ia SN template.

• 出版日期2007-4-11