Bright Supernova Precursors by Outbursts from Massive Stars with Compact Object Companions
Daichi Tsuna,
Tatsuya Matsumoto,
Samantha Chloe Wu
et al.
Abstract:A fraction of core-collapse supernovae (SNe) with signs of interaction with a dense circumstellar matter are preceded by bright precursor emission. While the precursors are likely caused by a mass ejection before core collapse, their mechanism to power energetic bursts—sometimes reaching 1048–1049 erg, which is larger than the binding energies of red supergiant envelopes—is still under debate. Remarkably, such a huge energy deposition should result in an almost complete envelope ejection and hence a strong sig… Show more
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