Results 11 to 20 of about 42,134 (199)

Habitable Zones in Binary Star Systems: A Zoology [PDF]

open access: yesGalaxies, 2020
Several concepts have been brought forward to determine where terrestrial planets are likely to remain habitable in multi-stellar environments. Isophote-based habitable zones, for instance, rely on insolation geometry to predict habitability, whereas ...
Siegfried Eggl   +2 more
doaj   +2 more sources

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. The Gaia hypothesis postulates that life influences the Earth's feedback mechanisms to form a self-regulating system ...
Arwen Nicholson   +3 more
openalex   +2 more sources

Dynamical Habitability of Known Extrasolar Planetary Systems [PDF]

open access: bronzeAstrophys.J. 583 (2003) 473-488, 2003
Habitability is usually defined as the requirement for a terrestrial planet's atmosphere to sustain liquid water. This definition can be complemented by the dynamical requirement that other planets in the system do not gravitationally perturb terrestrial planets outside of their habitable zone, the orbital region allowing the existence of liquid water.
Kristen Menou, Serge Tabachnik
openalex   +2 more sources

Analyzing the Habitable Zones of Circumbinary Planets Using Machine Learning [PDF]

open access: yesThe Astrophysical Journal, 929:187 (8pp), 2022 April 20, 2021
Exoplanet detection in the past decade by efforts including NASA's Kepler and TESS missions has discovered many worlds that differ substantially from planets in our own Solar System, including more than 150 exoplanets orbiting binary or multi-star systems.
arxiv   +1 more source

Was the Kalkarindji Continental Flood Basalt Province a Driver of Environmental Change at the Dawn of the Phanerozoic?

open access: yesGeophysical Monograph Series, Page 435-447., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Peter E. Marshall   +2 more
wiley  

+3 more sources

A satellite perspective on the movement decisions of African elephants in relation to nomadic pastoralists

open access: yesRemote Sensing in Ecology and Conservation, Volume 8, Issue 6, Page 841-854, December 2022., 2022
The African savannah ecosystem is populated by nomadic pastoralists who corral livestock at night in temporary enclosures, called bomas, to protect them. The number and distribution of bomas in the savannah is important from an ecological perspective. However, no studies have yet examined the spatial‐temporal dynamics of bomas and their relationship to
Isla Duporge   +9 more
wiley   +1 more source

Antarctica's vegetation in a changing climate

open access: yesWIREs Climate Change, Volume 14, Issue 1, January/February 2023., 2023
Antarctica's unique terrestrial ecosystems are changing with significant impact on the local vegetation. Change is manifold and includes alterations in abiotic and biotic interactions. How the vegetation will respond is still unclear. Abstract Antarctica plays a central role in regulating global climatic and oceanographic patterns and is an integral ...
Claudia Colesie   +4 more
wiley   +1 more source

The Paris Agreement and Climate Justice: Inequitable Impacts of Sea Level Rise Associated With Temperature Targets

open access: yesEarth's Future, Volume 10, Issue 12, December 2022., 2022
Abstract Anthropogenic greenhouse gas emissions are causing unprecedented changes to the climate. In 2015, at the United Nations (UN) Conference of the Parties in Paris, France, countries agreed to limit the global mean temperature (GMT) increase to 2°C above preindustrial levels, and to pursue efforts to limit warming to 1.5°C.
S. Sadai   +3 more
wiley   +1 more source

86Kr excess and other noble gases identify a billion-year-old radiogenically-enriched groundwater system

open access: yesNature Communications, 2022
Noble gases confirm billion-year groundwater residence times and external fluxes in deep crustal settings globally with implications for subsurface habitability and economic reservoir formation over planetary timescales both on Earth and ...
O. Warr   +6 more
doaj   +1 more source

The Influence of Tidal Heating on the Habitability of Planets Orbiting White Dwarfs

open access: yesThe Astrophysical Journal Letters, 2023
In recent years, there have been a growing number of observations indicating the presence of rocky material in short-period orbits around white dwarfs. In this Letter, we revisit the prospects for habitability around these post-main-sequence star systems.
Juliette Becker   +3 more
doaj   +1 more source

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