Parameters of the type-IIP supernova SN 2012aw

Abstract

We present the results the photometric observations of the Type IIP supernova SN 2012aw obtained for the time interval from 7 till 371 days after the explosion. Using the previously published values of the photospheric velocities we've computed the hydrodynamic model which simultaneously reproduced the photometry observations and velocity measurements. The model was calculated with the multi-energy group radiation hydrodynamics code STELLA. We found the parameters of the pre-supernova: radius $R=500R_{\odot }$, nickel mass $M{(}^{56}$Ni$)$ $\sim 0.06M_{\odot }$, pre-supernova mass $25M_{\odot }$, mass of ejected envelope $23.6M_{\odot }$, explosion energy $E\sim 2\times 10^{51}$ erg. The model progenitor mass $M=25M_{\odot }$ significantly exceeds the upper limit mass $M=17M_{\odot }$, obtained from analysis the pre-SNe observations. This result confirms once more that the 'Red Supergiant Problem' must be resolved by stellar evolution and supernova explosion theories in interaction with observations.

arXiv comment7 pages, 8 figures, 3 tables. Accepted for publication in MNRAS

References in corpus (25)

• Progenitors of core-collapse supernovae
• The death of massive stars - I. Observational constraints on the progenitors of type II-P supernovae
• Nucleosynthesis Yields of Core-Collapse Supernovae and Hypernovae, and Galactic Chemical Evolution
• Photometry and Spectroscopy of the Type IIP SN 1999em from Outburst to Dust Formation
• A comparative modeling of supernova 1993J
• Radiation hydrodynamics of SN 1987A: I. Global analysis of the light curve for the first 4 months
• Type II Supernovae as Standardized Candles
• Hydrodynamical models of Type II-Plateau Supernovae
• Optical and near infrared coverage of SN 2004et: physical parameters and comparison with other type IIP supernovae
• An optimal hydrodynamic model for the normal Type IIP supernova 1999em
• BVRI lightcurves of supernovae SN 2011fe in M101, SN 2012aw in M95, and SN 2012cg in NGC 4424
• Supernova 2012aw - a high-energy clone of archetypal type IIP SN 1999em
• The `Red Supergiant Problem': the upper luminosity boundary of type-II supernova progenitors
• High mass of the type IIP supernova 2004et inferred from hydrodynamic modeling
• The Type IIP Supernova 2012aw in M95: hydrodynamical modelling of the photospheric phase from accurate spectrophotometric monitoring
• Red and dead: The progenitor of SN 2012aw in M95
• Sn 2008in - bridging the gap between normal and faint supernovae of type IIP
• On the photometric and spectroscopic diversity of Type II supernovae
• SN 2013ab : A normal type IIP supernova in NGC 5669
• On The Red Supergiant Problem
• The Long-Lived UV "Plateau" of SN 2012aw
• Mass discrepancy analysis for a select sample of Type II-Plateau supernovae
• Luminous type IIP SN 2013ej with high-velocity Ni-56 ejecta
• The disappearance of the progenitor of SN 2012aw in late-time imaging
• Resolving the puzzle of type IIP SN 2016X

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