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Eta-Earth Revisited II: Deriving a Maximum Number of Earth-Like Habitats in the Galactic Disk

Lammer, Helmut; Scherf, Manuel; Spross, Laurenz

In Lammer et al. (2024), we defined Earth-like habitats (EHs) as rocky exoplanets within the habitable zone of complex life (HZCL) on which Earth-like N₂-O₂-dominated atmospheres with minor amounts of CO₂ can exist, and derived a formulation for estimating the maximum number of EHs in the galaxy given realistic pro…