Optical Transient from an Explosion Close to the Stellar Surface

Abstract

We study the hydrodynamic evolution of an explosion close to the stellar surface, and give predictions for the radiation from such an event. We show that such an event will give rise to a multi-wavelength transient. We apply this model to describe a precursor burst to the peculiar supernova iPTF14hls, which occurred in 1954, sixty year before the supernova. We propose that the new generation of optical surveys might detect similar transients, and they can be used to identify supernova progenitors well before the explosion.

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Cited by in corpus (10)

• Supernova explosions in active galactic nuclear discs
• The role of jets in exploding supernovae and in shaping their remnants
• Efficiently jet-powered radiation in intermediate-luminosity optical transients (ILOTS)
• Inclined jets inside a common envelope of a triple stellar system
• Explaining recently studied intermediate luminosity optical transients (ILOTs) with jet powering
• The circumstellar matter of type II intermediate luminosity optical transients (ILOTs)
• Multiple giant eruptions and X-ray emission in the recoiling AGN/LBV candidate SDSS1133
• A rapidly fading star as a type II obscuring intermediate luminosity optical transient (ILOT) in a triple star system
• Mass Ejection Driven by Sudden Energy Deposition in Stellar Envelopes
• Faint intermediate luminosity optical transients (ILOTs) from engulfing exoplanets on the Hertzsprung gap