Redox state and interior structure control on the long-term habitability of stagnant-lid planets [PDF]
, 2022 A major goal in exoplanet science is the search for planets with the right conditions to support liquid water (1). The habitability of a planet depends strongly on the composition of its atmosphere. Meanwhile, the interior and atmosphere of rocky planets
Baumeister, Philipp +4 more
core
Impact of ηEarth on the Capabilities of Affordable Space Missions to Detect Biosignatures on Extrasolar Planets [PDF]
, 2015 peer reviewedWe present an analytic model to estimate the capabilities of space missions dedicated to the search for biosignatures in the atmosphere of rocky planets located in the habitable zone of nearby stars. Relations between performance and mission
Malbet, Fabien +9 more
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Photosynthesis in Hydrogen-Dominated Atmospheres
Life, 2014 The diversity of extrasolar planets discovered in the last decade shows that we should not be constrained to look for life in environments similar to early or present-day Earth.
William Bains, Sara Seager, Andras Zsom
doaj +1 more source
Effects of dynamical evolution of giant planets on the delivery of atmophile elements during terrestrial planet formation [PDF]
, 2016 Recent observations started revealing the compositions of protostellar disks and planets beyond the solar system. In this paper, we explore how the compositions of terrestrial planets are affected by the dynamical evolution of giant planets.
Ida, Shigeru +2 more
core +1 more source
Small and Close-in Planets are Uncommon Around A-type Stars
The Astronomical JournalThe Kepler and K2 missions enabled robust calculations of planet occurrence rates around FGKM-type stars. However, these missions observed too few stars with earlier spectral types to tightly constrain the occurrence rates of planets orbiting hotter ...
Steven Giacalone, Courtney D. Dressing
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Can there be additional rocky planets in the Habitable Zone of tight binary stars with a known gas giant? [PDF]
, 2015 International audienceLocating planets in Habitable Zones (HZs) around other stars is a growing field in contemporary astronomy. Since a large percentage of all G-M stars in the solar neighbourhood are expected to be part of binary or multiple stellar ...
Pilat-Lohinger, Elke +2 more
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The Planetary Science JournalIn the late stage of terrestrial planet formation, planets are predicted to undergo pairwise collisions known as giant impacts. Here, we present a high-resolution database of giant impacts for differentiated colliding bodies of iron–silicate composition,
Alexandre Emsenhuber +6 more
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Identifying the rotation rate and the presence of dynamic weather on extrasolar Earth-like planets from photometric observations. Astrophys [PDF]
, 2008 With the recent discoveries of hundreds of extrasolar planets, the search for planets like Earth and life in the universe is quickly gaining momentum. In the future, large space observatories could directly detect the light scattered from rocky planets ...
M Vazquez +4 more
core
Mass–Radius Relationships and Contraction of Condensed Planets by Cooling or Despinning
The Astrophysical JournalCondensed planets contract or expand as their temperature changes. With the exception of the effect of phase changes, this phenomenon is generally interpreted as being solely related to the thermal expansivity of the planet’s components. However, changes
Yanick Ricard, Frédéric Chambat
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The Astrophysical JournalUnderstanding the surface temperature and interior structure of cold-to-temperate sub-Neptunes is critical for assessing their habitability, yet direct observations are challenging.
Ziyu Huang +7 more
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