Possibilities for an Aerial Biosphere in Temperate Sub Neptune-Sized Exoplanet Atmospheres

@inproceedings{Seager2021PossibilitiesFA,
  title={Possibilities for an Aerial Biosphere in Temperate Sub Neptune-Sized Exoplanet Atmospheres},
  author={S. Seager and J. Petkowski and M. G{\"u}nther and W. Bains and T. Mikal-Evans and D. Deming},
  year={2021}
}
1 Department of Earth, Atmospheric, and Planetary Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; jjpetkow@mit.edu (J.J.P.); bains@mit.edu (W.B.) 2 Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; maxgue@mit.edu (M.N.G.); tmevans@mit.edu (T.M.-E.) 3 Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA 4 School of Physics… Expand

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References

SHOWING 1-10 OF 168 REFERENCES
Formation, Habitability, and Detection of Extrasolar Moons
Abstract The diversity and quantity of moons in the Solar System suggest a manifold population of natural satellites exist around extrasolar planets. Of peculiar interest from an astrobiologicalExpand
Formation, habitability, and detection of extrasolar moons.
TLDR
It is shown that natural satellites in the range of 0.1-0.5 Earth mass are potentially habitable, can form within the circumplanetary debris and gas disk or via capture from a binary, and are detectable with current technology. Expand
Gas transfer in the Pluto–Charon system: A Charon atmosphere
Abstract Recent hybrid fluid/molecular kinetic models demonstrated that Pluto’s upper atmosphere is warmer and more extended than previously thought (Erwin, J.T., Tucker, O.J., Johnson, R.E. [2013].Expand
The Interior and Atmosphere of the Habitable-zone Exoplanet K2-18b
Exoplanets orbiting M dwarfs present a valuable opportunity for their detection and atmospheric characterisation. This is evident from recent inferences of H$_2$O in such atmospheres, including thatExpand
UNDERSTANDING THE MASS-RADIUS RELATION FOR SUB-NEPTUNES: RADIUS AS A PROXY FOR COMPOSITION
Transiting planet surveys like Kepler have provided a wealth of information on the distribution of planetary radii, particularly for the new populations of super-Earth- and sub-Neptune-sized planets.Expand
Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Planets, Including a Planet Receiving Earth-like Insolation
The extended Kepler mission, K2, is now providing photometry of new fields every three months in a search for transiting planets. In a recent study, Foreman-Mackey and collaborators presented a listExpand
Water Vapor and Clouds on the Habitable-Zone Sub-Neptune Exoplanet K2-18b
Results from the Kepler mission indicate that the occurrence rate of small planets ($<3$ $R_\oplus$) in the habitable zone of nearby low-mass stars may be as high as 80%. Despite this abundance,Expand
A test for the search for life on extrasolar planets - Looking for the terrestrial vegetation signature in the Earthshine spectrum
We report spectroscopic observations (400 to 800nm, R = approx 100) of Earthshine in June, July and October 2001 from which normalised Earth albedo spectra have been derived. The resulting spectraExpand
The effect of a strong stellar flare on the atmospheric chemistry of an earth-like planet orbiting an M dwarf.
TLDR
The results indicate that the UV radiation emitted during the flare does not produce a significant change in the ozone column depth of the planet, and flares may not present a direct hazard for life on the surface of an orbiting habitable planet. Expand
The Habitable Exoplanet Observatory (HabEx) Mission Concept Study Final Report
The Habitable Exoplanet Observatory, or HabEx, has been designed to be the Great Observatory of the 2030s. For the first time in human history, technologies have matured sufficiently to enable anExpand
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