Results 11 to 20 of about 171,532 (223)

Gaian bottlenecks and planetary habitability maintained by evolving model biospheres: the ExoGaia model [PDF]

open access: green, 2018
The search for habitable exoplanets inspires the question - how do habitable planets form? Planet habitability models traditionally focus on abiotic processes and neglect a biotic response to changing conditions on an inhabited planet.
Arwen Nicholson   +3 more
openalex   +3 more sources

System Architecture and Planetary Obliquity: Implications for Long-term Habitability [PDF]

open access: goldAstronomical Journal, 2022
In the search for life beyond our solar system, attention should be focused on those planets that have the potential to maintain habitable conditions over the prolonged periods of time needed for the emergence and expansion of life as we know it.
Pam Vervoort   +4 more
openalex   +3 more sources

Astrophysical Conditions for Planetary Habitability [PDF]

open access: yes, 2014
With the discovery of hundreds of exoplanets and a potentially huge number of Earth-like planets waiting to be discovered, the conditions for their habitability have become a focal point in exoplanetary research.
M. Guedel   +9 more
semanticscholar   +5 more sources

Planetary Magnetism as a Parameter in Exoplanet Habitability [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
Evidence from the solar system suggests that, unlike Venus and Mars, the presence of a strong magnetic dipole moment on Earth has helped maintain liquid water on its surface. Therefore, planetary magnetism could have a significant effect on the long-term
Sarah Mcintyre   +2 more
semanticscholar   +6 more sources

Long-Term Planetary Habitability and the Carbonate-Silicate Cycle. [PDF]

open access: yesAstrobiology, 2018
The potential habitability of an exoplanet is traditionally assessed by determining whether its orbit falls within the circumstellar "habitable zone" of its star, defined as the distance at which water could be liquid on the surface of a planet ...
Andrew J. Rushby   +4 more
semanticscholar   +9 more sources

TIDAL LIMITS TO PLANETARY HABITABILITY [PDF]

open access: yesThe Astrophysical Journal, 2009
The habitable zones (HZs) of main-sequence stars have traditionally been defined as the range of orbits that intercept the appropriate amount of stellar flux to permit surface water on a planet. Terrestrial exoplanets discovered to orbit M stars in these
R. Barnes   +3 more
semanticscholar   +6 more sources

Planetary Magnetic Fields and Habitability in Super Earths

open access: yesOpen Astronomy, 2018
This work seeks to summarize some special aspects of a type of exoplanets known as super-Earths (SE), and the direct influence of these aspects in their habitability.
Cuartas-Restrepo Pablo
doaj   +2 more sources

GJ 273: on the formation, dynamical evolution, and habitability of a planetary system hosted by an M dwarf at 3.75 parsec [PDF]

open access: bronzeAstronomy & Astrophysics, 2020
Context. Planets orbiting low-mass stars such as M dwarfs are now considered a cornerstone in the search for planets with the potential to harbour life.
F. J. Pozuelos   +13 more
openalex   +3 more sources

Dynamics and habitability in circumstellar planetary systems of known binary stars [PDF]

open access: green, 2016
We present a survey on exoplanetary systems of binary stars with stellar separations less than 100 au. For a sample of 11 binaries that harbour detected circumstellar giant planets we investigate the frequency of systems with secular resonances (SR ...
Ákos Bazsó   +5 more
openalex   +3 more sources

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