Do, 07.04.2022 14:00

Seminar: Eta Earth Revisited: How many Earth-like Habitats might there be in the Milky Way?

Manuel Scherf will talk about calculating the number of planets suitable for life.

Without aerobic life, the simultanious presence of N2 and O2 in the Earth's atmosphere, as on any other planet, would be chemically incompatible over geologic timescales. The existence of an N2-O2-dominated atmosphere on another planet would therefore not only constitute a strong biosignature of aerobic life. It would also have to meet certain astro- and geophysical conditions to originate, evolve and to sustain. To better understand the possible prevalence of aerobic biospheres within the Milky Way, we derive a new equation to estimate the maximum number of planets on which such an Earth-like Habitat can evolve. Our formula contains realistic probabilistic arguments that can be fine-tuned and constrained by atmospheric characterization with future space- and ground-based telescopes.

Informationen

 

IWF Seminar series

Speaker
Manuel Scherf

When
07.04.2022, 14.00 Uhr

Where
Zoom Link