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Spectrophotometric time series of SN 2011fe from the Nearby Supernova Factory

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arxiv 1302.1292 v1 pith:D7PUYFHH submitted 2013-02-06 astro-ph.CO

R. Pereira , R. C. Thomas , G. Aldering , P. Antilogus , C. Baltay , S. Benitez-Herrera , S. Bongard , C. Buton
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A. Canto F. Cellier-Holzem J. Chen M. Childress N. Chotard Y. Copin H. K. Fakhouri M. Fink D. Fouchez E. Gangler J. Guy W. Hillebrandt E. Y. Hsiao M. Kerschhaggl M. Kowalski M. Kromer J. Nordin P. Nugent K. Paech R. Pain E. Pécontal S. Perlmutter D. Rabinowitz M. Rigault K. Runge C. Saunders G. Smadja C. Tao S. Taubenberger A. Tilquin C. Wu (The Nearby Supernova Factory)
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We present 32 epochs of optical (3300-9700 \AA) 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 (\mu = 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 of detection thresholds for unburned carbon, direct comparisons with other SNe Ia, and existing spectral templates.

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Cited by 2 Pith papers

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    MOST could measure strong-lens time delays of Type Ia supernovae to within a few hours at a 2-day cadence, based on simulated CSST-discovered systems.

  2. Optical observations on the young Type Ia SN 2021fxy with detached high velocity features

    astro-ph.HE 2026-07 conditional novelty 5.0 of 10

    In SN 2021fxy, the high-velocity Si II λ6355 absorption declines as roughly t^−0.1, much shallower than the t^−0.22 expected from standard outer ejecta, pointing to detached density structures.

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