Results 51 to 60 of about 35,775 (180)
Multiple Habitable Phases on Outer Exosolar Worlds
The Astrophysical JournalAs stars evolve to higher luminosities during first ascension of the giant branch, previously frozen terrestrial worlds may thaw and host liquid water on their surfaces.
Viktor Sparrman, Sara Bladh, M. J. Way
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An Analytic Method to determine Habitable Zones for S-Type Planetary Orbits in Binary Star Systems
, 2012 With more and more extrasolar planets discovered in and around binary star systems, questions concerning the determination of the classical Habitable Zone arise.
Eggl, Siegfried +4 more
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A POPULATION-BASED HABITABLE ZONE PERSPECTIVE [PDF]
The Astrophysical Journal, 2015 What can we tell about exoplanet habitability if currently only the stellar properties, planet radius, and the incoming stellar flux are known? A planet is in the Habitable Zone (HZ) if it harbors liquid water on its surface. The HZ is traditionally conceived as a sharp region around stars because it is calculated for one planet with specific ...
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Radiative habitable zones in martian polar environments [PDF]
Icarus, 2005 The biologically damaging solar ultraviolet (UV) radiation (quantified by the DNA-weighted dose) reaches the Martian surface in extremely high levels. Searching for potentially habitable UV-protected environments on Mars, we considered the polar ice caps that consist of a seasonally varying CO2 ice cover and a permanent H2O ice layer. It was found that,
Córdoba-Jabonero, Carmen +4 more
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Planetary Habitability Under the Light of a Rapidly Changing Star
The Astronomical JournalPlanetary atmospheric energy budgets primarily depend on stellar incident flux. However, stellar variability can have major consequences for the evolution of planetary climates. In this work, we evaluate how stellar variability influences the equilibrium
Tara Fetherolf +5 more
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Atmospheric studies of habitability in the Gliese 581 system
, 2011 The M-type star Gliese 581 is orbited by at least one terrestrial planet candidate in the habitable zone, i.e. GL 581 d. Orbital simulations have shown that additional planets inside the habitable zone of GL 581 would be dynamically stable. Recently, two
Gebauer, S. +4 more
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Tides Tighten the Hycean Habitable Zone
The Astrophysical Journal LettersHycean planets—exoplanets with substantial water ice layers, deep surface oceans, and hydrogen-rich atmospheres—are thought to be favorable environments for life. Due to a relative paucity of atmospheric greenhouse gases, hycean planets have been thought
Joseph R. Livesey +2 more
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Exoplanets beyond the Conservative Habitable Zone. II. Occurrence
The Astrophysical JournalWe show that the extension of the habitable zone (HZ) due to the presence of liquid water on the nightside of tidally locked planets, calculated in earlier works, significantly increases the number of potentially habitable planets.
Amri Wandel
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The Habitable-zone Planet Finder Calibration System
, 2014 We present the design concept of the wavelength calibration system for the Habitable-zone Planet Finder instrument (HPF), a precision radial velocity (RV) spectrograph designed to detect terrestrial-mass planets around M-dwarfs.
Bender, Chad +11 more
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Potential for Life to Exist and be Detected on Earth-like Planets Orbiting White Dwarfs
The Astrophysical Journal LettersWith recent observations confirming exoplanets orbiting white dwarfs, there is growing interest in exploring and quantifying the habitability of temperate rocky planets around white dwarfs.
Caldon T. Whyte +3 more
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