The spectacular evolution of Supernova 1996al over 15 yr: a low-energy explosion of a stripped massive star in a highly structured environment

Spectrophotometry of SN 1996al carried out throughout 15 yr is presented. The early photometry suggests that SN 1996al is a linear Type II supernova, with an absolute peak of M V ∼ −18.2 mag. Early spectra present broad asymmetric Balmer emissions, with superimposed narrow lines with P-Cygni profile...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2016-03, Vol.456 (3), p.3296-3317
Hauptverfasser:	Benetti, S., Chugai, N. N., Utrobin, V. P., Cappellaro, E., Patat, F., Pastorello, A., Turatto, M., Cupani, G., Neuhäuser, R., Caldwell, N., Pignata, G., Tomasella, L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Asymmetry Ejecta Emission Explosions H alpha line Hydrogen Kinetic energy Kinetics Luminosity Massive stars Star & galaxy formation Supernovae
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