69 citations · 117 across the 4 of their papers we have counts for
4 papers
Eta-Earth Revisited I: A Formula for Estimating the Maximum Number of Earth-like Habitats
Helmut Lammer, Manuel Scherf, Laurenz Sproß
In this hypothesis article, we discuss the basic requirements of planetary environments where aerobe organisms can grow and survive, including atmospheric limitations of millimeter…
Eta-Earth Revisited II: Deriving a Maximum Number of Earth-like Habitats in the Galactic Disk
Manuel Scherf, Helmut Lammer, Laurenz Sproß
In Lammer et al. 2024, we defined Earth-like Habitats (EH) as rocky planets in the habitable zone of complex life (HZCL) on which Earth-like N-O-dominated atmospheres with…
Life as the Only Reason for the Existence of N2-O2-Dominated Atmospheres
Laurenz Sproß, Manuel Scherf, Valery I. Shematovich +2
The Earth's N2-dominated atmosphere is a very special feature. Firstly, N2 as main gas is unique on the terrestrial planets in the inner solar system and gives a hint for tectonic…
The Role of N2 as a Geo-Biosignature for the Detection and Characterization of Earth-like Habitats
Helmut Lammer, Laurenz Sproß, John Lee Grenfell +4
Since the Archean, N2 has been a major atmospheric constituent in Earth's atmosphere. Nitrogen is an essential element in the building blocks of life, therefore the geobiological n…