Open AccessESC observations of SN 2005cf – I. Photometric evolution of a normal Type Ia supernova
Author(s) -
Pastorello A.,
Taubenberger S.,
EliasRosa 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.
Publication year - 2007
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2007.11527.x
Subject(s) - physics , supernova , photometry (optics) , astrophysics , light curve , galaxy , astronomy , luminosity , stars
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 [ Δ m 15 ( B ) true = 1.12 ] close to the average value and a normal luminosity of M B ,max =−19.39 ± 0.33 . Models of the bolometric light curve suggest a synthesized 56 Ni mass of about 0.7 M ⊙ . The negligible host galaxy interstellar extinction and its proximity make SN 2005cf a good Type Ia SN template.