Results 11 to 20 of about 1,315 (165)
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,
Lammer, Helmut +43 more
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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
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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
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Research Notes of the AAS, 2021 Abstract Stars do not remain static, so their habitable zones evolve in time. Over a star's evolution, its habitable zone encompasses new planets, and it remains uncertain whether these planets can become habitable. We refer to this often overlooked class of planets as lying in the belatedly habitable zone, and stress that many planets ...
Noah W. Tuchow, Jason T. Wright
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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
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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
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A Maximum Radius for Habitable Planets [PDF]
Origins of Life and Evolution of Biospheres, 2015 We compute the maximum radius a planet can have in order to fulfill two constraints that are likely necessary conditions for habitability: 1- surface temperature and pressure compatible with the existence of liquid water, and 2- no ice layer at the bottom of a putative global ocean, that would prevent the operation of the geologic carbon cycle to ...
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The Habitable Zone of Inhabited Planets [PDF]
, 2014 Abstract. In this paper we discuss and illustrate the hypothesis that life substantially alters the state of a planetary environment and therefore, modifies the limits of the HZ as estimated for an uninhabited planet. This hypothesis lead to the introduction of the Habitable Zone for Inhabited Planets (hereafter InHZ), defined here as the region where ...
Jorge I. Zuluaga +3 more
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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.
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EPJ Web of Conferences, 2013 The exquisite photometric precision of the Kepler space telescope now puts the detection of extrasolar moons at the horizon. Here, we firstly review observational and analytical techniques that have recently been proposed to find exomoons.
Heller René, Barnes Rory
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