Results 11 to 20 of about 4,433 (297)
A New Definition of Exoplanet Habitability: Introducing the Photosynthetic Habitable Zone [PDF]
The Astrophysical Journal Letters, 2023 It may be possible to detect biosignatures of photosynthesis in an exoplanet’s atmosphere. However, such a detection would likely require a dedicated study, occupying a large amount of telescope time. It is therefore prudent, while searching for signs of
C. Hall +3 more
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Novel Atmospheric Dynamics Shape the Inner Edge of the Habitable Zone around White Dwarfs [PDF]
The Astrophysical JournalWhite dwarfs offer a unique opportunity to search nearby stellar systems for signs of life, but the habitable zone around these stars is still poorly understood.
Ruizhi Zhan +2 more
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Exoplanets around Red Giants: Distribution and Habitability
Galaxies, 2023 As the search for exoplanets continues, more are being discovered orbiting Red Giant stars. We use current data from the NASA Exoplanet Archive to investigate planet distribution around Red Giant stars and their presence in the host’s habitable zone.
Ruixuan E. Chen +4 more
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Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACTWhen searching for inhabited exoplanets, understanding the boundaries of the habitable zone around the parent star is the key. If life can strongly influence its global environment, then we would expect the boundaries of the habitable zone to be influenced by the presence of life.
Rudy Arthur, Arwen Nicholson
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Trojans in Habitable Zones [PDF]
Astrobiology, 2005 With the aid of numerical experiments we examined the dynamical stability of fictitious terrestrial planets in 1:1 mean motion resonance with Jovian-like planets of extrasolar planetary systems. In our stability study of the so-called "Trojan" planets in the habitable zone, we used the restricted three-body problem with different mass ratios of the ...
Schwarz, Richard +4 more
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Extended Habitability of Exoplanets Due to Subglacial Water
The 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
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Habitable zones and UV habitable zones around host stars [PDF]
Astrophysics and Space Science, 2009 Ultraviolet radiation is a double-edged sword to life. If it is too strong, the terrestrial biological systems will be damaged. And if it is too weak, the synthesis of many biochemical compounds can not go along. We try to obtain the continuous ultraviolet habitable zones, and compare the ultraviolet habitable zones with the habitable zones of host ...
Guo, Jianpo +3 more
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No Evidence for More Earth-sized Planets in the Habitable Zone of Kepler's M versus FGK Stars
The Astronomical Journal, 2023 Reliable detections of Earth-sized planets in the habitable zone remain elusive in the Kepler sample, even for M dwarfs. The Kepler sample was once thought to contain a considerable number of M-dwarf stars ( T _eff < 4000 K), which hosted enough Earth ...
Galen J. Bergsten +5 more
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Prospects for the characterization of habitable planets
Comptes Rendus. Physique, 2023 With thousands of exoplanets now identified, the characterization of habitable planets and the potential identification of inhabited ones is a major challenge for the coming decades.
Mazevet, Stephane +5 more
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Tracing the inner edge of the habitable zone with sulfur chemistry. [PDF]
Sci AdvThe circumstellar liquid-water habitable zone guides our search for potentially inhabited exoplanets but remains observationally untested. We show that the inner edge of the habitable zone can now be mapped among exoplanets using their lack of surface ...
Jordan S, Shorttle O, Rimmer PB.
europepmc +3 more sources