Results 21 to 30 of about 18,858 (312)
Narrow Loophole for H2-Dominated Atmospheres on Habitable Rocky Planets around M Dwarfs
The Astrophysical Journal Letters, 2023 Habitable rocky planets around M dwarfs that have H _2 -dominated atmospheres, if they exist, would permit characterizing habitable exoplanets with detailed spectroscopy using JWST, owing to their extended atmospheres and small stars.
Renyu Hu +2 more
doaj +1 more source
Emergence of a Habitable Planet
Space Science Reviews, 2007 We address the first several hundred million years of Earth’s history. The Moon-forming impact left Earth enveloped in a hot silicate atmosphere that cooled and condensed over ∼1,000 yrs. As it cooled the Earth degassed its volatiles into the atmosphere. It took another ∼2 Myrs for the magma ocean to freeze at the surface.
Zahnle, Kevin +6 more
openaire +6 more sources
Surrounded by Giants: Habitable Zone Stability Within the HD 141399 System
The Astronomical Journal, 2023 The search for exoplanets has revealed a diversity of planetary system architectures, the vast majority of which diverge significantly from the template of the solar system.
Stephen R. Kane
doaj +1 more source
Geophysical and Atmospheric Evolution of Habitable Planets [PDF]
Astrobiology, 2010 The evolution of Earth-like habitable planets is a complex process that depends on the geodynamical and geophysical environments. In particular, it is necessary that plate tectonics remain active over billions of years. These geophysically active environments are strongly coupled to a planet's host star parameters, such as mass, luminosity and activity,
Yuri N. Kulikov +45 more
openaire +6 more sources
KRITERIA PLANET LAYAK HUNI SEBAGAI ANALISIS KEBERADAAN DOPPELGANGER BUMI
Gravity: Jurnal Ilmiah Penelitian dan Pembelajaran Fisika, 2019 The discovery of extrasolar planets has reached rapid development. Until now, various earth-sized planets called terrestrial planets around their parent stars have been discovered .
Berthianna Nurcresia +4 more
doaj +1 more source
On the timescale forcing in astrobiology [PDF]
Serbian Astronomical Journal, 2007 We investigate the effects of correlated global regulation mechanisms, especially Galactic gamma-ray bursts (GRBs), on the temporal distribution of hypothetical inhabited planets, using simple Monte Carlo numerical experiments.
Vukotić B., Ćirković M.M.
doaj +1 more source
Accounting for Multiplicity in Calculating Eta Earth [PDF]
, 2019 Using the updated exoplanet population parameters of our previous study, which includes the planetary radius updates from Gaia DR2 and an inferred multiplicity distribution, we provide a revised $\eta_{\oplus}$ calculation.
Hansen, Bradley M. S., Zink, Jon K.
core +2 more sources
A scientometric prediction of the discovery of the first potentially habitable planet with a mass similar to Earth. [PDF]
PLoS ONE, 2010 BACKGROUND: The search for a habitable extrasolar planet has long interested scientists, but only recently have the tools become available to search for such planets.
Samuel Arbesman, Gregory Laughlin
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What makes a planet habitable? [PDF]
The Astronomy and Astrophysics Review, 2009 This work reviews factors which are important for the evolution of habitable Earth-like planets such as the effects of the host star dependent radiation and particle fluxes on the evolution of atmospheres and initial water inventories. We discuss the geodynamical and geophysical environments which are necessary for planets where plate tectonics remain ...
Lammer, H. +16 more
openaire +3 more sources
Prospects for Cryovolcanic Activity on Cold Ocean Planets
The Astrophysical Journal, 2023 We have estimated total internal heating rates and depths to possible subsurface oceans for 17 planets that may be cold ocean planets, low-mass exoplanets with equilibrium surface temperatures and/or densities that are consistent with icy surfaces and a ...
Lynnae C. Quick +4 more
doaj +1 more source