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SN 2012ec: Mass of the progenitor from PESSTO follow-up of the photospheric phase

Barbarino, C; Dall'Ora, Massimo; Botticella, M T; Della Valle, M; Zampieri, L; Maund, J. R.; Pumo, M.L.; Jerkstrand, Anders; Benetti, Stefano; Elias-Rosa (Elias de la Rosa), Nancy; Fraser, M; Gal-Yam, Avishay; Hamuy, M.; Inserra, Cosimo; Knapic, C.; LaCluyze, A. P.; Molinaro, M.; Ochner, P.; Pastorello, A.; Pignata, G.; Reichart, D E; Ries, C.; Riffeser, A; Schmidt, M.; Smareglia, R.; Smartt, Stephen J.; Smith, K; Sollerman, J.; Sullivan, M; Tomasella, L; Turatto, Massimo; Valenti, S; Yaron, Ofer; Young , D


We present the results of a photometric and spectroscopic monitoring campaign of SN 2012ec, which exploded in the spiral galaxy NGC 1084, during the photospheric phase. The photometric light curve exhibits a plateau with luminosity L = 0.9 × 1042 erg s−1 and duration ∼90 d, which is somewhat shorter than standard Type II-P supernovae (SNe). We estimate the nickel mass M(56Ni) = 0.040 ± 0.015 M from the luminosity at the beginning of the radioactive tail of the light curve. The explosion...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stv106
Access Rights: Open Access


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