Climate of Earth-like planets with high obliquity and eccentric orbits: Implications for habitability conditions

@article{Linsenmeier2015ClimateOE,
  title={Climate of Earth-like planets with high obliquity and eccentric orbits: Implications for habitability conditions},
  author={Manuel Linsenmeier and Salvatore Pascale and Valerio Lucarini},
  journal={Planetary and Space Science},
  year={2015},
  volume={105},
  pages={43-59}
}
Atmospheric dynamics on terrestrial planets with eccentric orbits
<p>The insolation a planet receives from its parent star is the main engine of the climate and depends on the planet's orbital configuration. Planets with non-zero obliquity and eccentricity
Enhanced Habitability on High Obliquity Bodies near the Outer Edge of the Habitable Zone of Sun-like Stars
High obliquity planets represent potentially extreme limits of terrestrial climate, as they exhibit large seasonality, a reversed annual-mean pole-to-equator gradient of stellar heating, and novel
Habitability and Water Loss Limits on Eccentric Planets Orbiting Main-sequence Stars
A planet's climate can be strongly affected by its orbital eccentricity and obliquity. Here we use a 1-dimensional energy balance model modified to include a simple runaway greenhouse (RGH)
Habitability of planets on eccentric orbits: Limits of the mean flux approximation
Unlike the Earth, which has a small orbital eccentricity, some exoplanets discovered in the insolation habitable zone (HZ) have high orbital eccentricities (e.g., up to an eccentricity of ~0.97 for
EFFECTS OF OBLIQUITY ON THE HABITABILITY OF EXOPLANETS AROUND M DWARFS
Most previous studies on how obliquity affects planetary habitability focused on planets around Sun-like stars. Their conclusions may not be applicable to habitable planets around M dwarfs due to the
Atmospheric Dynamics on Terrestrial Planets: The Seasonal Response to Changes in Orbital, Rotational, and Radiative Timescales
Thousands of exoplanets have been detected to date, and with future planned missions this tally will increase. Understanding the climate dependence on the planetary parameters is vital for the study
Models of Warm Jupiter Atmospheres: Observable Signatures of Obliquity
We present three-dimensional atmospheric circulation models of a hypothetical "warm Jupiter" planet, for a range of possible obliquities from 0-90 degrees. We model a Jupiter-mass planet on a 10-day
Obliquity and Eccentricity Constraints For Terrestrial Exoplanets
Exoplanet discoveries over recent years have shown that terrestrial planets are exceptionally common. Many of these planets are in compact systems that result in complex orbital dynamics. A key step
Climate bistability of Earth-like exoplanets
Before about 500 million years ago, most probably our planet experienced temporary snowball conditions, with continental and sea ices covering a large fraction of its surface. This points to a
...
...

References

SHOWING 1-10 OF 86 REFERENCES
HABITABLE CLIMATES : THE INFLUENCE OF OBLIQUITY
Extrasolar terrestrial planets with the potential to host life might have large obliquities or be subject to strong obliquity variations. We revisit the habitability of oblique planets with an energy
Thermal Phases of Earth-Like Planets: Estimating Thermal Inertia from Eccentricity, Obliquity, and Diurnal Forcing
In order to understand the climate on terrestrial planets orbiting nearby Sun-like stars, one would like to know their thermal inertia. We use a global climate model to simulate the thermal phase
Extraordinary climates of Earth-like planets: three-dimensional climate simulations at extreme obliquity
A three-dimensional general-circulation climate model is used to simulate climates of Earth-like planets with extreme axial tilts (i.e. ‘obliquities’). While no terrestrial-planet analogue exists in
Effects of extreme obliquity variations on the habitability of exoplanets.
TLDR
It is shown that large-amplitude, high-frequency obliquity oscillations on Earth-like exoplanets can suppress the ice-albedo feedback, increasing the outer edge of the habitable zone.
3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability
The inner edge of the classical habitable zone is often defined by the critical flux needed to trigger the runaway greenhouse instability. This 1D notion of a critical flux, however, may not be so
Tidal obliquity evolution of potentially habitable planets
Context. Stellar insolation has been used as the main constraint on a planet’s potential habitability. However, as more Earth-like planets are discovered around low-mass stars (LMSs), a
Habitability and Multistability in Earth-like Planets
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 aims at
HABITABLE CLIMATES: THE INFLUENCE OF ECCENTRICITY
In the outer regions of the habitable zone, the risk of transitioning into a globally frozen 'snowball' state poses a threat to the habitability of planets with the capacity to host water-based life.
Atmospheric Dynamics of Earth‐Like Tidally Locked Aquaplanets
We present simulations of atmospheres of Earth‐like aquaplanets that are tidally locked to their star, that is, planets whose orbital period is equal to the rotation period about their spin axis, so
...
...