Results 41 to 50 of about 1,315 (165)
No Snowball on Habitable Tidally Locked Planets [PDF]
The Astrophysical Journal, 2017 The TRAPPIST-1, Proxima Centauri, and LHS 1140 systems are the most exciting prospects for future follow-up observations of potentially inhabited planets. All orbit nearby M-stars and are likely tidally locked in 1:1 spin-orbit states, which motivates the consideration of the effects that tidal locking might have on planetary habitability.
Jade Checlair +2 more
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On the radius of habitable planets [PDF]
Astronomy & Astrophysics, 2013 Context. The conditions that a planet must fulfill to be habitable are not precisely known. However, it is comparatively easier to define conditions under which a planet is very likely not habitable. Finding such conditions is important as it can help select, in an ensemble of potentially observable planets, which ones should be observed in greater ...
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Habitability and Multistability in Earth‐like Planets [PDF]
Astronomische Nachrichten, 2013 AbstractIn this paper we explore the potential multistability of the climate for a planet around the habitable zone. We focus on conditions reminiscent to those of the Earth system, but our investigation has more general relevance and aims at presenting a general methodology for dealing with exoplanets.
Lucarini V. +4 more
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The formation of habitable planets in the four-planet system HD 141399 [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT The presented work investigates the possible formation of terrestrial planets in the habitable zone (HZ) of the exoplanetary system HD 141399. In this system, the HZ is located approximately between the planets c (a = 0.7 au) and d (a = 2.1 au).
Dvorak, R. +3 more
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The Astronomical JournalThe Habitable Worlds Observatory (HWO) is NASA’s flagship mission design from the 2020 Decadal Survey on Astronomy and Astrophysics, meant to observe temperate terrestrial planets via direct imaging and use direct spectroscopy of exoplanet reflected ...
Jamie Dietrich +3 more
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Sensitivity of Transit Searches to Habitable‐Zone Planets [PDF]
The Astrophysical Journal, 2003 Submitted to ApJ Letters, 10 pages including 2 ...
Gould, Andrew +2 more
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On the probability of habitable planets [PDF]
International Journal of Astrobiology, 2013 AbstractIn the past 15 years, astronomers have revealed that a significant fraction of the stars should harbour planets and that it is likely that terrestrial planets are abundant in our galaxy. Among these planets, how many are habitable, i.e. suitable for life and its evolution?
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Exomoons and Exorings with the Habitable Worlds Observatory. II. Finding “Endor” with Lunar Eclipses
The Astronomical JournalGiant planets in the habitable zone may host exomoons with conditions conducive to life. In this paper, we describe a method by which the Habitable Worlds Observatory (HWO) could detect such moons: broadband reflected-light lunar eclipses (e.g., the moon
Mary Anne Limbach +8 more
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Habitability of Planets in Binaries
, 2007 A survey of currently known extrasolar planets indicates that close to 20% of their hosting stars are members of binary systems. While the majority of these binaries are wide (i.e., with separations between 250 and 6500 AU), the detection of Jovian-type planets in the three binaries of Gamma Cephei (separation of 18.5 AU), GL 86 (separation of 21 AU ...
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The fine structure constant and habitable planets [PDF]
Journal of Cosmology and Astroparticle Physics, 2016 24 pages, 4 ...
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