Results 51 to 60 of about 24,229 (205)
Resilient habitability of nearby exoplanet systems [PDF]
, 2019 We investigate the possibility of finding Earth-like planets in the habitable zone of 34 nearby FGK-dwarfs, each known to host one giant planet exterior to their habitable zone detected by RV. First we simulate the dynamics of the planetary systems in their present day configurations and determine the fraction of stable planetary orbits within their ...
arxiv +1 more source
Defining the Really Habitable Zone
, 2020 Since the discovery of the first confirmed exoplanet, observations have revealed a remarkable diversity of worlds. A wide variety of orbital and physical characteristics are detected in the exoplanet population, and much work has been devoted to deciding which of these planets may be suitable for life. Until now, though, little work has been devoted to
Pedbost, Marven F. +4 more
openaire +2 more sources
GJ 832c: A SUPER-EARTH IN THE HABITABLE ZONE [PDF]
The Astrophysical Journal, 2014 We report the detection of GJ 832c, a super-Earth orbiting near the inner edge of the habitable zone of GJ 832, an M dwarf previously known to host a Jupiter analog in a nearly-circular 9.4-year orbit. The combination of precise radial-velocity measurements from three telescopes reveals the presence of a planet with a period of 35.68+/-0.03 days and ...
James S. Jenkins +23 more
openaire +5 more sources
Enlarging habitable zones around binary stars in hostile environments [PDF]
, 2019 Habitable zones are regions around stars where large bodies of liquid water can be sustained on a planet or satellite. As many stars form in binary systems with non-zero eccentricity, the habitable zones around the component stars of the binary can overlap and be enlarged when the two stars are at periastron (and less often when the stars are at ...
arxiv +1 more source
Impacts of stellar evolution and dynamics on the habitable zone: The role of rotation and magnetic activity [PDF]
A&A 597, A14 (2017), 2016 In this article, we aim to provide the community with the dependence of the habitable zone upon the stellar mass, metallicity, rotation, and for various prescriptions of the limits of the habitable zone. We use the STAREVOL code to study the evolution of the habitable zone and of the continuously habitable zone limits.
arxiv +1 more source
The Planetary Science JournalLong-term magma ocean phases on rocky exoplanets orbiting closer to their star than the runaway greenhouse threshold—the inner edge of the classical habitable zone—may offer insights into the physical and chemical processes that distinguish potentially ...
Martin Schlecker +5 more
doaj +1 more source
A CATALOG OF KEPLER HABITABLE ZONE EXOPLANET CANDIDATES [PDF]
The Astrophysical Journal, 2016 ABSTRACT The NASA Kepler mission ha s discovered thousands of new planetary candidates, many of which have been confirmed through follow-up observations. A primary goal of the mission is to determine the occurrence rate of terrestrial-size planets within the Habitable Zone (HZ) of their host stars.
James F. Kasting +14 more
openaire +8 more sources
Effects of Radius and Gravity on the Inner Edge of the Habitable Zone [PDF]
, 2019 A rigorous definition of the habitable zone and its dependence on planetary properties is part of the search for habitable exoplanets. In this work, we use the general circulation model ExoCAM to determine how the inner edge of the habitable zone of tidally locked planets orbiting M dwarf stars depends on planetary radius, surface gravity, and surface ...
arxiv +1 more source
Multiple Habitable Phases on Outer Exosolar Worlds
The Astrophysical JournalAs stars evolve to higher luminosities during first ascension of the giant branch, previously frozen terrestrial worlds may thaw and host liquid water on their surfaces.
Viktor Sparrman, Sara Bladh, M. J. Way
doaj +1 more source
Exomoon Climate Models with the Carbonate-Silicate Cycle and Viscoelastic Tidal Heating [PDF]
, 2016 The habitable zone for exomoons with Earth-like properties is a non-trivial manifold, compared to that of Earth-like exoplanets. The presence of tidal heating, eclipses and planetary illumination in the exomoon energy budget combine to produce both circumstellar and circumplanetary habitable regions.
arxiv +1 more source