Results 21 to 30 of about 28,301 (98)
Habitable Zones in the Universe [PDF]
, 2005 Habitability varies dramatically with location and time in the universe. This was recognized centuries ago, but it was only in the last few decades that astronomers began to systematize the study of habitability. The introduction of the concept of the habitable zone was key to progress in this area.
arxiv +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
The Habitable Zone and Extreme Planetary Orbits [PDF]
, 2012 The Habitable Zone for a given star describes the range of circumstellar distances from the star within which a planet could have liquid water on its surface, which depends upon the stellar properties. Here we describe the development of the Habitable Zone concept, its application to our own Solar System, and its subsequent application to exoplanetary ...
arxiv +1 more source
On the "Galactic Habitable Zone" [PDF]
, 2006 The concept of Galactic Habitable Zone (GHZ) was introduced a few years ago as an extension of the much older concept of Circumstellar Habitable Zone. However, the physical processes underlying the former concept are hard to identify and even harder to quantify.
arxiv +1 more source
Statistical properties of habitable zones in stellar binary systems [PDF]
, 2020 Observations of exoplanets and protoplanetary disks show that binary stellar systems can host planets in stable orbits. Given the high binary fraction among stars, the contribution of binary systems to Galactic habitability should be quantified. Therefore, we have designed a suite of Monte Carlo experiments aimed at generating large (up to $10^6 ...
arxiv +1 more source
The Catalog of Earth-Like Exoplanet Survey TArgets (CELESTA): A Database of Habitable Zones around Nearby Stars [PDF]
, 2015 Locating planets in circumstellar Habitable Zones is a priority for many exoplanet surveys. Space-based and ground-based surveys alike require robust toolsets to aid in target selection and mission planning. We present the Catalog of Earth-Like Exoplanet Survey Targets (CELESTA), a database of Habitable Zones around 36,000 nearby stars.
arxiv +1 more source
Carbon Cycle Instability for High-CO2 Exoplanets: Implications for Habitability
The Astrophysical JournalImplicit in the definition of the classical circumstellar habitable zone (HZ) is the hypothesis that the carbonate-silicate cycle can maintain clement climates on exoplanets with land and surface water across a range of instellations by adjusting ...
R. J. Graham, R. T. Pierrehumbert
doaj +1 more source
Exploring the Effects of Stellar Magnetism on the Potential Habitability of Exoplanets
The Astrophysical JournalConsiderable interest has centered on Earth-like planets orbiting in the circumstellar habitable zone (CHZ) of its star. However, the potential habitability of an exoplanet depends upon a number of additional factors, including the presence and strength ...
Anthony S. Atkinson +2 more
doaj +1 more source
The Astrophysical JournalEarth-like planets in the circumstellar habitable zone (HZ) may have dramatically different climate outcomes depending on their spin–orbit parameters, altering their habitability for life as we know it.
Arthur D. Adams +4 more
doaj +1 more source
Habitable Zones with Stable Orbits for Planets around Binary Systems [PDF]
, 2014 A general formulation to compute habitable zones (HZ) around binary stars is presented. A HZ in this context must satisfy two separate conditions: a radiative one and one of dynamical stability. For the case of single stars, the usual concept of circumstellar habitable zone is based on the radiative condition only, as the dynamical stability condition ...
arxiv +1 more source