The atmospheric circulation and climate of terrestrial planets orbiting Sun-like and M-dwarf stars over a broad range of planetary parameters
arXiv:1901.00567 · doi:10.3847/1538-4357/aafb33
Abstract
The recent detections of temperate terrestrial planets orbiting nearby stars and the promise of characterizing their atmospheres motivates a need to understand how the diversity of possible planetary parameters affects the climate of terrestrial planets. In this work, we investigate the atmospheric circulation and climate of terrestrial exoplanets orbiting both Sun-like and M-dwarf stars over a wide swath of possible planetary parameters, including the planetary rotation period, surface pressure, incident stellar flux, surface gravity, planetary radius, and cloud particle size. We do so using a general circulation model (GCM) that includes non-grey radiative transfer and the effects of clouds. The results from this suite of simulations generally show qualitatively similar dependencies of circulation and climate on planetary parameters as idealized GCMs, with quantitative differences due to the inclusion of additional model physics. Notably, we find that the effective cloud particle size is a key unknown parameter that can greatly affect the climate of terrestrial exoplanets. We confirm a transition between low and high dayside cloud coverage of synchronously rotating terrestrial planets with increasing rotation period. We determine that this cloud transition is due to eddy-driven convergence near the substellar point and should not be parameterization-dependent. Finally, we compute full-phase light curves from our simulations of planets orbiting M-dwarf stars, finding that changing incident stellar flux and rotation period affect observable properties of terrestrial exoplanets. Our GCM results can guide expectations for planetary climate over the broad range of possible terrestrial exoplanets that will be observed with future space telescopes.
arXiv comment21 pages, 19 figures, 5 tables. Updated to reflect published version
References in corpus (44)
- Habitable Zones Around Main-Sequence Stars: New Estimates
- Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
- A terrestrial planet candidate in a temperate orbit around Proxima Centauri
- Habitable Zones Around Main-Sequence Stars: Dependence on Planetary Mass
- Equatorial superrotation on tidally locked exoplanets
- Stabilizing Cloud Feedback Dramatically Expands the Habitable Zone of Tidally Locked Planets
- Increased insolation threshold for runaway greenhouse processes on Earth like planets
- Was Venus the First Habitable World of our Solar System?
- The habitability of Proxima Centauri b II. Possible climates and Observability
- Strong Dependence of the Inner Edge of the Habitable Zone on Planetary Rotation Rate
- Observing the Atmospheres of Known Temperate Earth-sized Planets with JWST
- A rocky planet transiting a nearby low-mass star
- Atmospheric reconnaissance of the habitable-zone Earth-sized planets orbiting TRAPPIST-1
- The inner edge of the habitable zone for synchronously rotating planets around low-mass stars using general circulation models
- 3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability
- Assessing the Habitability of the TRAPPIST-1 System Using a 3D Climate Model
- Habitable Moist Atmospheres On Terrestrial Planets Near the Inner Edge Of the Habitable Zone Around M-dwarfs
- Inverting Phase Functions to Map Exoplanets
- Asynchronous rotation of Earth-mass planets in the habitable zone of lower-mass stars
- Atmospheric dynamics of Earth-like tidally locked aquaplanets
- Exploring the faint young Sun problem and the possible climates of the Archean Earth with a 3-D GCM
- Atmospheric dynamics of terrestrial exoplanets over a wide range of orbital and atmospheric parameters
- Atmospheric Circulation of Hot Jupiters: Dayside-Nightside Temperature Differences. II. Comparison with Observations
- K-H_2 Quasi-molecular absorption detected in the T-dwarf epsilon Indi Ba
- Exploring the climate of Proxima B with the Met Office Unified Model
- Resolving Orbital and Climate Keys of Earth and Extraterrestrial Environments with Dynamics 1.0: A General Circulation Model for Simulating the Climates of Rocky Planets
- Habitable Climate Scenarios for Proxima Centauri b With a Dynamic Ocean
- Demarcating circulation regimes of synchronously rotating terrestrial planets within the habitable zone
- Characterizing Earth Analogs in Reflected Light: Atmospheric Retrieval Studies for Future Space Telescopes
- Thermal phase curves of nontransiting terrestrial exoplanets 1. Characterizing atmospheres
- Suppression of the water ice and snow albedo feedback on planets orbiting red dwarf stars and the subsequent widening of the habitable zone
- Transition to a Moist Greenhouse with CO and solar forcing
- Global-mean Vertical Tracer Mixing in Planetary Atmospheres I: Theory and Fast-rotating Planets
- Effects of Bulk Composition on The Atmospheric Dynamics on Close-in Exoplanets
- Constraints on Climate and Habitability for Earth-like Exoplanets Determined from a General Circulation Model
- Connecting the dots II: Phase changes in the climate dynamics of tidally locked terrestrial exoplanets
- Prospects for Characterizing the Atmosphere of Proxima Centauri b
- Temperature Structure and Atmospheric Circulation of Dry, Tidally Locked Rocky Exoplanets
- Deciphering thermal phase curves of dry, tidally locked terrestrial planets
- Ground-based optical transmission spectroscopy of the small, rocky exoplanet GJ 1132b
- Climates of Warm Earth-like Planets I: 3-D Model Simulations
- Wave-Mean Flow Interactions in the Atmospheric Circulation of Tidally Locked Planets
- On the Method to Infer an Atmosphere on a Tidally-Locked Super Earth Exoplanet and Upper limits to GJ 876d
- The influence of a sub-stellar continent on the climate of a tidally-locked exoplanet
Cited by in corpus (56)
- Aerosols in Exoplanet Atmospheres
- Atmospheric Regimes and Trends on Exoplanets and Brown Dwarfs
- The TRAPPIST-1 Habitable Atmosphere Intercomparison (THAI). Part II: Moist Cases -- The Two Waterworlds
- The Effect of Ocean Salinity on Climate and Its Implications for Earth's Habitability
- Atmospheric convection plays a key role in the climate of tidally-locked terrestrial exoplanets: insights from high-resolution simulations
- Clouds will likely prevent the detection of water vapor in JWST transmission spectra of terrestrial exoplanets
- Habitability and Spectroscopic Observability of Warm M-dwarf Exoplanets Evaluated with a 3D Chemistry-Climate Model
- Oceanographic Considerations for Exoplanet Life Detection
- Thermodynamic and Energetic Limits on Continental Silicate Weathering Strongly Impact the Climate and Habitability of Wet, Rocky Worlds
- Dim Prospects for Transmission Spectra of Ocean Earths Around M Stars
- Bioverse: A Comprehensive Assessment of the Capabilities of Extremely Large Telescopes to Probe Earth-like O Levels in Nearby Transiting Habitable Zone Exoplanets
- Super-Earths and Earth-like Exoplanets
- The First Habitable Zone Earth-sized Planet from TESS. III: Climate States and Characterization Prospects for TOI-700 d
- The Effect of Substellar Continent Size on Ocean Dynamics of Proxima Centauri b
- Water Ice Cloud Variability & Multi-Epoch Transmission Spectra of TRAPPIST-1e
- Simulated Phase-dependent Spectra of Terrestrial Aquaplanets in M Dwarf Systems
- The Physics of Falling Raindrops in Diverse Planetary Atmospheres
- Terminator Habitability: the Case for Limited Water Availability on M-dwarf Planets
- Albedos, Equilibrium Temperatures, and Surface Temperatures of Habitable Planets
- Implications of different stellar spectra for the climate of tidally-locked Earth-like exoplanets
- The TRAPPIST-1 JWST Community Initiative
- Effects of Radius and Gravity on the Inner Edge of the Habitable Zone
- Atmospheres on Nonsynchronized Eccentric-tilted Exoplanets II: Thermal Light Curves
- Effects of Spin-Orbit Resonances and Tidal Heating on the Inner Edge of the Habitable Zone
- Bioverse: a simulation framework to assess the statistical power of future biosignature surveys
- How does Background Air Pressure Influence the Inner Edge of the Habitable Zone for Tidally Locked Planets in a 3D View?
- Longitudinally asymmetric stratospheric oscillation on a tidally locked exoplanet
- 3-D climate simulations for the detectability of Proxima Centauri b
- Climate Diversity in the Solar-Like Habitable Zone due to Varying Background Gas Pressure
- Stratospheric dayside-to-nightside circulation drives the 3-D ozone distribution on synchronously rotating rocky exoplanets
- Atmospheric dynamics of temperate sub-Neptunes. Part I: dry dynamics
- Scaling Relations for Terrestrial Exoplanet Atmospheres from Baroclinic Criticality
- Modelling the 3D Climate of Venus with OASIS
- Atmospheric dynamics on terrestrial planets with eccentric orbits
- The Sparse Atmospheric MOdel Sampling Analysis (SAMOSA) intercomparison: Motivations and protocol version 1.0. A CUISINES model intercomparison project
- EOS-ESTM: A flexible climate model for habitable exoplanets
- Greater climate sensitivity and variability on TRAPPIST-1e than Earth
- Smaller Sensitivity of Precipitation to Surface Temperature under Massive Atmospheres
- Finding Signs of Life in Transit: High-resolution Transmission Spectra of Earth-like Planets around FGKM Host Stars
- From Super-Earths to Mini-Neptunes: Implications of a Surface on Atmospheric Circulation
- The emergence of a summer hemisphere jet in planetary atmospheres
- Hurricane genesis is favorable on terrestrial exoplanets orbiting late-type M dwarf stars
- Effects of transient stellar emissions on planetary climates of tidally-locked exo-earths
- Tidal evolution of Earth-like planets in the habitable zone of low-mass stars
- Impact of Planetary Parameters on Water Clouds Microphysics
- The Importance of 3D General Circulation Models for Characterizing the Climate and Habitability of Terrestrial Extrasolar Planets
- Increased Surface Temperatures of Habitable White Dwarf Worlds Relative to Main-Sequence Exoplanets
- From Global Climate Models (GCMs) to Exoplanet Spectra with the Global Emission Spectra (GlobES)
- Snowball Bistability Vanishes at Moderate Orbital Eccentricity
- Spin and orbital dynamics of planets undergoing thermal atmospheric tides using a vectorial approach
- Lightning activity on a tidally locked terrestrial exoplanet in storm-resolving simulations for a range of surface pressures
- The climates and thermal emission spectra of prime nearby temperate rocky exoplanet targets
- The Effect of Planetary Rotation Period on Clouds in a Global Climate Model with a Bin Microphysics Scheme
- Chemistry, Climate, and Transmission Spectra of TRAPPIST-1 e Explored with a Multimodel Sparse Sampled Ensemble
- Asymmetry and Variability in the Transmission Spectra of Tidally Locked Habitable Planets
- Climate uncertainties caused by unknown land distribution on habitable M-Earths