2013/01/28 by R. Pereira, R. C. Thomas, G. Aldering +40 · 2 citations
Physics and Astronomy · #Astro and Planetary Science #Astronomy #Astrophysics #Factory (object-oriented programming) #Gamma-ray bursts and supernovae #Neutrino Physics Research #Physics #Series (stratigraphy) #Supernova #astro-ph.CO
paper · pdf · doi:10.1051/0004-6361/201221008
22 pages, 15 figures, 3 tables; accepted by A&A; for the associated data release and a spectral evolution animation see the SNfactory website at http://snfactory.lbl.gov
openalex publication_date 2013/01/28 · arxiv created 2013/02/06 · arxiv updated 2015/06/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present 32 epochs of optical (3300−9700 Å) spectrophotometric observations of the nearby quintessential “normal” type Ia supernova (SN Ia) SN 2011fe in the galaxy M101, extending from −15 to +97 d with respect to B-band maximum, obtained by the Nearby Supernova Factory collaboration. SN 2011fe is the closest (μ = 29.04) and brightest (Bmax = 9.94 mag) SN Ia observed since the advent of modern large scale programs for the intensive periodic followup of supernovae. Both synthetic light curve measurements and spectral feature analysis attest to the normality of SN 2011fe. There is very little evidence for reddening in its host galaxy. The homogeneous calibration, intensive time sampling, and high signal-to-noise ratio of the data set make it unique. Thus it is ideal for studying the physics of SN Ia explosions in detail, and for furthering the use of SNe Ia as standardizable candles for cosmology. Several such applications are shown, from the creation of a bolometric light curve and measurement of the 56Ni mass, to the simulation ofdetection thresholds for unburned carbon, direct comparisons with other SNe Ia, and existing spectral templates.