Multi-epoch high-resolution spectroscopy reveals a stagnant [O I] gas reservoir at ~1 au in AB Aurigae that feeds high-rate accretion and crushes the stellar magnetosphere.
Gravitational instability in a planet-forming disk , volume =
4 Pith papers cite this work. Polarity classification is still indexing.
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TOI-5882, a lithium-enriched subgiant with a brown dwarf companion, shows enrichment consistent with engulfment of a super-Earth to Neptune-mass planet.
Reanalysis of 79 solar twins indicates the Sun's chemical peculiarity is largely explained by Galactic chemical evolution, with 2-6 candidates possibly showing planetary engulfment.
The disk instability model remains viable for explaining giant planets that form early, at large orbital distances, and around M-dwarf stars, supported by updated simulations and observations.
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Giant Planet Formation by Disk Instability
The disk instability model remains viable for explaining giant planets that form early, at large orbital distances, and around M-dwarf stars, supported by updated simulations and observations.