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Extended Habitability of Exoplanets Due to Subglacial Water [PDF]

open access: yesThe Astronomical Journal, 2023
Considering subglacial liquid water, a significant extension of the classical Habitable Zone is obtained. Elaborating on the model of Wandel it is shown how an atmosphere and liquid water could survive on tidally locked planets closely orbiting an M ...
Amri Wandel
doaj   +2 more sources

CO2 Ocean Bistability on Terrestrial Exoplanets. [PDF]

open access: yesJ Geophys Res Planets, 2022
Abstract Cycling of carbon dioxide between the atmosphere and interior of rocky planets can stabilize global climate and enable planetary surface temperatures above freezing over geologic time. However, variations in global carbon budget and unstable feedback cycles between planetary sub‐systems may destabilize the climate of rocky exoplanets toward ...
Graham RJ   +2 more
europepmc   +2 more sources

Circumbinary Habitable Zones in the Presence of a Giant Planet [PDF]

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Determining habitable zones in binary star systems can be a challenging task due to the combination of perturbed planetary orbits and varying stellar irradiation conditions.
Nikolaos Georgakarakos   +8 more
doaj   +2 more sources

Water Dynamics in Highly Concentrated Salt Solutions: A Multi-Nuclear NMR Approach. [PDF]

open access: yesChemistryOpen, 2022
A multi‐nuclear NMR approach including quadrupolar nuclei is used to monitor water and ions mobility in a series of saturated salt solutions. It is shown that water can preserve a high degree of mobility inside such solutions. The results shed light on water dynamics in highly crowded environments such as phase‐separated cellular compartments enriched ...
Rezaei-Ghaleh N.
europepmc   +2 more sources

Circumstellar habitable zones of binary-star systems in the solar neighbourhood [PDF]

open access: bronze, 2012
Binary and multiple systems constitute more than half of the total stellar population in the Solar neighborhood (Kiseleva-Eggleton and Eggleton 2001). Their frequent occurrence as well as the fact that more than 70 (Schneider et al. 2011) planets have already been discovered in such configurations - most noteably the telluric companion of alpha ...
Siegfried Eggl   +4 more
openalex   +2 more sources

Circumstellar Habitable Zones to Ecodynamic Domains: A Preliminary Review and Suggested Future Directions [PDF]

open access: greenarXiv, 2009
The concept of the Circumstellar Habitable Zone has served the scientific community well for some decades. It slips easily off the tongue, and it would be hard to replace. Recently, however, several workers have postulated types of habitable bodies which might exist outside the classic circumstellar habitable zone (HZ).
Martin J. Heath, Laurance R. Doyle
openalex   +3 more sources

Ultraviolet radiation constraints around the circumstellar habitable zones [PDF]

open access: green, 2006
Ultraviolet radiation is known to inhibit photosynthesis, induce DNA destruction and cause damage to a wide variety of proteins and lipids. In particular, UV radiation between 200-300 nm becomes energetically very damaging to most of the terrestrial biological systems.
A. P. Buccino   +2 more
openalex   +2 more sources

Multiverse Predictions for Habitability: Number of Potentially Habitable Planets [PDF]

open access: yesUniverse, 2019
How good is our universe at making habitable planets? The answer to this depends on which factors are important for life: Does a planet need to be Earth mass? Does it need to be inside the temperate zone? are systems with hot Jupiters habitable? Here, we
McCullen Sandora
doaj   +2 more sources

DETECTABILITY OF EARTH-LIKE PLANETS IN CIRCUMSTELLAR HABITABLE ZONES OF BINARY STAR SYSTEMS WITH SUN-LIKE COMPONENTS [PDF]

open access: bronze, 2013
Given the considerable percentage of stars that are members of binaries or stellar multiples in the Solar neighborhood, it is expected that many of these binaries host planets, possibly even habitable ones. The discovery of a terrestrial planet in the alpha Centauri system supports this notion.
Siegfried Eggl   +2 more
openalex   +2 more sources

Exomoon habitability constrained by illumination and tidal heating. [PDF]

open access: yesAstrobiology, 2013
The detection of moons orbiting extrasolar planets ("exomoons") has now become feasible. Once they are discovered in the circumstellar habitable zone, questions about their habitability will emerge. Exomoons are likely to be tidally locked to their planet and hence experience days much shorter than their orbital period around the star and have seasons,
Heller R, Barnes R.
europepmc   +2 more sources

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