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- W4324046902 endingPage "104" @default.
- W4324046902 startingPage "104" @default.
- W4324046902 abstract "Abstract Recent observations of a large fraction of Type II supernovae (SNe) show traces of dense circumstellar medium (CSM) very close to the progenitor star. If this CSM is created by eruptive mass loss several months before core collapse, the eruption itself may be visible as a precursor, helpful as an early warning of a near-future SN. Using radiation hydrodynamical simulations based on the open-source code CHIPS, we theoretically model the emission from the mass eruption of a red supergiant star. We find that for a modest mass eruption the luminosity is typically on the order of 10 39 erg s −1 , can last as long as hundreds of days until the star explodes, and is mainly bright in the infrared (from −9 to −11 mag around peak). We discuss observational strategies to find these signatures from Galactic and local Type II SNe." @default.
- W4324046902 created "2023-03-14" @default.
- W4324046902 creator A5009778586 @default.
- W4324046902 creator A5011202153 @default.
- W4324046902 creator A5021510532 @default.
- W4324046902 date "2023-03-01" @default.
- W4324046902 modified "2023-10-02" @default.
- W4324046902 title "Precursors of Supernovae from Mass Eruption: Prospects for Early Warning of Nearby Core-collapse Supernovae" @default.
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