Thermonuclear Explosions and Accretion-induced Collapses of White Dwarfs in Active Galactic Nucleus Accretion Disks

  title={Thermonuclear Explosions and Accretion-induced Collapses of White Dwarfs in Active Galactic Nucleus Accretion Disks},
  author={Jin-Ping Zhu and Yuan-Pei Yang and Bing Zhang and Liangduan Liu and Yun-Wei Yu and He Gao},
  journal={The Astrophysical Journal Letters},
  • Jin-Ping Zhu, Yuan-Pei Yang, +3 authors He Gao
  • Published 2021
  • Physics
  • The Astrophysical Journal Letters
White dwarfs (WDs) embedded in the gaseous disks of active galactic nuclei (AGNs) can rapidly accrete materials from these disks and grow in mass to reach, or even exceed, the Chandrasekhar limit. Binary WD (BWD) mergers are also believed to occur in AGN accretion disks. We study observational signatures from these events. We suggest that mass-accreting WDs and BWD mergers in AGN disks can lead to thermonuclear explosions that drive an ejecta shock breakout from the disk surface and power a… Expand


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