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A decreased probability of habitable planet formation around low-mass stars
Sean N. Raymond, John Scalo, Victoria Meadows
Smaller terrestrial planets (< 0.3 Earth masses) are less likely to retain the substantial atmospheres and ongoing tectonic activity probably required to support life. A key elemen…
Spectral signatures of photosynthesis II: coevolution with other stars and the atmosphere on extrasolar worlds
Nancy Y. Kiang, Antigona Segura, Giovanna Tinetti +6
As photosynthesis on Earth produces the primary signatures of life that can be detected astronomically at the global scale, a strong focus of the search for extrasolar life will be…
Biosignatures from Earth-Like Planets Around M Dwarfs
Antigona Segura, James F. Kasting, Victoria Meadows +5
Coupled one-dimensional photochemical-climate calculations have been performed for hypothetical Earth-like planets around M dwarfs. Visible, near-infrared and thermal-infrared synt…
Disk-averaged synthetic spectra of Mars
Giovanna Tinetti, Victoria S. Meadows, David Crisp +3
The principal goal of the NASA Terrestrial Planet Finder (TPF) and ESA Darwin mission concepts is to directly detect and characterize extrasolar terrestrial (Earth-sized) planets.…