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- W2290211546 abstract "We investigate the expected rates and bolometric light-curve properties of stripped-envelope electron-capture supernovae (ECSNe) using stellar models from the Binary Population and Spectral Synthesis code. We find that 0.8 per cent (Z = 0.020) and 1.2 per cent (Z = 0.004) of core-collapse supernovae are stripped-envelope ECSNe. Their typical ejecta masses are estimated to be about 0.3 M⊙(Z = 0.020) and 0.6 M⊙ (Z = 0.004). Assuming ECSN explosion properties from numerical explosion simulations, an explosion energy of 1.5 × 1050 erg and a 56Ni mass of 2.5 × 10−3 M⊙, we find that stripped-envelope ECSNe have a typical rise time of around 7 d (Z = 0.020) or 13 d (Z = 0.004) and peak luminosity of around 1041 ergs−1 (−13.8 mag, Z = 0.020) or 7 × 1040 erg s−1 (−13.4 mag, Z = 0.004). Their typical ejecta velocities are around 7000 km s−1 (Z = 0.020) or 5000 km s−1 (Z = 0.004). Thus, stripped-envelope ECSNe are observed as rapidly evolving faint transients with relatively small velocities. SN 2008ha-like supernovae, which are the faintest kind of SN 2002cx-like (also known as Type Iax) supernovae, may be related to stripped-envelope ECSNe." @default.
- W2290211546 created "2016-06-24" @default.
- W2290211546 creator A5023356857 @default.
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- W2290211546 date "2016-06-20" @default.
- W2290211546 modified "2023-10-16" @default.
- W2290211546 title "Rapidly evolving faint transients from stripped-envelope electron-capture supernovae" @default.
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- W2290211546 doi "https://doi.org/10.1093/mnras/stw1471" @default.
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