Detectability of atmospheric features of Earth-like planets in the habitable zone around M dwarfs

Abstract

We investigate the detectability of atmospheric spectral features of Earth-like planets in the habitable zone (HZ) around M dwarfs with the future James Webb Space Telescope (JWST). We use a coupled 1D climate-chemistry-model to simulate the influence of a range of observed and modelled M-dwarf spectra on Earth-like planets. The simulated atmospheres served as input for the calculation of the transmission spectra of the hypothetical planets, using a line-by-line spectral radiative transfer model. To investigate the spectroscopic detectability of absorption bands with JWST we further developed a signal-to-noise ratio (S/N) model and applied it to our transmission spectra. High abundances of CH${}_4$ and H${}_2$O in the atmosphere of Earth-like planets around mid to late M dwarfs increase the detectability of the corresponding spectral features compared to early M-dwarf planets. Increased temperatures in the middle atmosphere of mid- to late-type M-dwarf planets expand the atmosphere and further increase the detectability of absorption bands. To detect CH${}_4$, H${}_2$O, and CO${}_2$ in the atmosphere of an Earth-like planet around a mid to late M dwarf observing only one transit with JWST could be enough up to a distance of 4 pc and less than ten transits up to a distance of 10 pc. As a consequence of saturation limits of JWST and less pronounced absorption bands, the detection of spectral features of hypothetical Earth-like planets around most early M dwarfs would require more than ten transits. We identify 276 existing M dwarfs (including GJ 1132, TRAPPIST-1, GJ 1214, and LHS 1140) around which atmospheric absorption features of hypothetical Earth-like planets could be detected by co-adding just a few transits. We show that using transmission spectroscopy, JWST could provide enough precision to be able to partly characterise the atmosphere of Earth-like TESS planets around mid to late M dwarfs.

arXiv comment18 pages, 10 figures

References in corpus (103)

• The Transiting Exoplanet Survey Satellite
• The James Webb Space Telescope
• A new extensive library of PHOENIX stellar atmospheres and synthetic spectra
• Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
• The NextGen Model Atmosphere grid for $3000\le \Teff \le 10000\K$
• The Limiting Effects of Dust in Brown Dwarf Model Atmospheres
• Clouds in the atmosphere of the super-Earth exoplanet GJ 1214b
• Models of Stars, Brown Dwarfs and Exoplanets
• The HARPS search for southern extra-solar planets XXXI. The M-dwarf sample
• Stellar Diameters and Temperatures II. Main Sequence K & M Stars
• Extreme Water Loss and Abiotic O${}_2$ Buildup On Planets Throughout the Habitable Zones of M Dwarfs
• The Transiting Exoplanet Survey Satellite: Simulations of planet detections and astrophysical false positives
• Biosignatures from Earth-Like Planets Around M Dwarfs
• Detection of atmospheric haze on an extrasolar planet: The 0.55 - 1.05 micron transmission spectrum of HD189733b with the Hubble Space Telescope
• A Neptune-Mass Planet Orbiting the Nearby M Dwarf GJ 436
• The Mid-Infrared Instrument for the James Webb Space Telescope I: Introduction
• The Effect of a Strong Stellar Flare on the Atmospheric Chemistry of an Earth-like Planet Orbiting an M dwarf
• The MUSCLES Treasury Survey I: Motivation and Overview
• Stabilizing Cloud Feedback Dramatically Expands the Habitable Zone of Tidally Locked Planets
• The Transit Light Source Effect: False Spectral Features and Incorrect Densities for M-dwarf Transiting Planets
• A dynamically-packed planetary system around GJ667C with three super-Earths in its habitable zone
• The Flat Transmission Spectrum of the Super-Earth GJ1214b from Wide Field Camera 3 on the Hubble Space Telescope
• A Re-appraisal of the Habitability of Planets Around M Dwarf Stars
• Increased insolation threshold for runaway greenhouse processes on Earth like planets
• How to Distinguish between Cloudy Mini-Neptunes and Water/Volatile-Dominated Super-Earths
• The Pale Orange Dot: The Spectrum and Habitability of Hazy Archean Earth
• The Habitability of Planets Orbiting M-dwarf Stars
• Transits of Earth-Like Planets
• A Revised Exoplanet Yield from the Transiting Exoplanet Survey Satellite (TESS)
• A revised estimate of the occurrence rate of terrestrial planets in the habitable zones around kepler m-dwarfs
• The Mid-Infrared Instrument for the James Webb Space Telescope, VI: The Medium Resolution Spectrometer
• An All-Sky Catalog of Bright M Dwarfs
• The habitability of Proxima Centauri b II. Possible climates and Observability
• The Ultraviolet Radiation Environment Around M dwarf Exoplanet Host Stars
• Evidence for Magnetic Flux Saturation in Rapidly Rotating M Stars
• Observing the Atmospheres of Known Temperate Earth-sized Planets with JWST
• The Mid-Infrared Instrument for JWST, II: Design and Build
• Discovery and Characterization of Transiting SuperEarths Using an All-Sky Transit Survey and Follow-up by the James Webb Space Telescope
• The MUSCLES Treasury Survey III: X-ray to Infrared Spectra of 11 M and K Stars Hosting Planets
• A combined transmission spectrum of the Earth-sized exoplanets TRAPPIST-1 b and c
• Habitable Moist Atmospheres On Terrestrial Planets Near the Inner Edge Of the Habitable Zone Around M-dwarfs
• The Mass-Radius(-Rotation?) Relation for Low-Mass Stars
• Effect of UV Radiation on the Spectral Fingerprints of Earth-like Planets Orbiting M dwarfs
• The transmission spectrum of Earth through lunar eclipse observations
• The Atmospheric Chemistry of GJ 1214b: Photochemistry and Clouds
• Habitable worlds with JWST: transit spectroscopy of the TRAPPIST-1 system?
• Atmospheric Circulation of Eccentric Hot Neptune GJ436b
• The Solar Neighborhood XXXV: Distances to 1404 M Dwarf Systems Within 25 pc in the Southern Sky
• The Habitable Zones of Pre-Main-Sequence Stars
• Constraining Exoplanet Mass from Transmission Spectroscopy
• Detectability of biosignatures in anoxic atmospheres with the James Webb Space Telescope: A TRAPPIST-1e case study
• Stellar Diameters and Temperatures V. Eleven Newly Characterized Exoplanet Host Stars
• The Habitability of Proxima Centauri b: II: Environmental States and Observational Discriminants
• Pale Orange Dots: The Impact of Organic Haze on the Habitability and Detectability of Earthlike Exoplanets
• Transit spectroscopy with JWST: Systematics, starspots and stitching
• The Response of Atmospheric Chemistry on Earthlike Planets around F, G and K Stars to Small Variations in Orbital Distance
• The Mid-Infrared Instrument for the James Webb Space Telescope: IV. The Low Resolution Spectrometer
• 3D modeling of GJ1214b's atmosphere: formation of inhomogeneous high clouds and observational implications
• UV habitable zones around M stars
• Astrophysical Parameters and Habitable Zone of the Exoplanet Hosting Star GJ 581
• Impact of atmospheric refraction: How deeply can we probe exo-Earth's atmospheres during primary eclipse observations?
• The Mid-Infrared Instrument for the James Webb Space Telescope, IX: Predicted Sensitivity
• Methane in the atmosphere of the transiting hot Neptune GJ436b?
• Far Infrared Prperties of M Dwarfs
• A Catalog of Cool Dwarf Targets for the Transiting Exoplanet Survey Satellite
• The GJ 436 System: Directly Determined Astrophysical Parameters of an M-Dwarf and Implications for the Transiting Hot Neptune
• CARMENES input catalogue of M dwarfs II. High-resolution imaging with FastCam
• The Mid-Infrared Instrument for the James Webb Space Telescope, VII: The MIRI Detectors
• Warming the early Earth - CO2 reconsidered
• Metallicity of M dwarfs IV. A high-precision [Fe/H] and Teff technique from high-resolution optical spectra for M dwarfs
• Strategies for Constraining the Atmospheres of Temperate Terrestrial Planets with JWST
• UV Surface Habitability of the TRAPPIST-1 System
• Prospects for Characterizing the Atmosphere of Proxima Centauri b
• Transmission Spectra of Transiting Planet Atmospheres: Model Validation and Simulations of the Hot Neptune GJ 436b for JWST
• Detectors for the James Webb Space Telescope Near-Infrared Spectrograph I: Readout Mode, Noise Model, and Calibration Considerations
• Atmospheric effects of stellar cosmic rays on Earth-like exoplanets orbiting M-dwarfs
• A Jupiter-like Planet Orbiting the Nearby M Dwarf GJ832
• Transmission spectrum of Earth as a transiting exoplanet - from the ultraviolet to the near-infrared
• The Exozodiacal Dust Problem for Direct Observations of ExoEarths
• Atmospheric Circulation and Composition of GJ1214b
• Clouds in the atmospheres of extrasolar planets. I. Climatic effects of multi-layered clouds for Earth-like planets and implications for habitable zones
• The extrasolar planet GL 581 d: A potentially habitable planet?
• The Earth as an extrasolar transiting planet: Earth's atmospheric composition and thickness revealed by Lunar eclipse observations
• GJ 1214b revised. Improved trigonometric parallax, stellar parameters, orbital solution, and bulk properties for the super-Earth GJ 1214b
• Sensitivity of Biosignatures on Earth-like Planets orbiting in the Habitable Zone of Cool M-Dwarf Stars to varying Stellar UV Radiation and Surface Biomass Emissions
• Spectral features of Earth-like planets and their detectability at different orbital distances around F, G, and K-type stars
• Forecasting the Impact of Stellar Activity on Transiting Exoplanet Spectra
• Telling twins apart: Exo-Earths and Venuses with transit spectroscopy
• Potential Biosignatures in Super-Earth Atmospheres II. Photochemical Responses
• The Solar Neighborhood. XXXIV. A Search for Planets Orbiting Nearby M Dwarfs using Astrometry
• A Methane Extension to the Classical Habitable Zone
• Evolution of Earth-like extrasolar planetary atmospheres: Assessing the atmospheres and biospheres of early Earth analog planets with a coupled atmosphere biogeochemical model
• An analytical formalism accounting for clouds and other "surfaces" for exoplanet transmission spectroscopy
• 3D climate modeling of Earth-like extrasolar planets orbiting different types of host stars
• Calibration of the MEarth Photometric System: Optical Magnitudes and Photometric Metallicity Estimates for 1802 Nearby M-dwarfs
• New Insights into Cosmic Ray induced Biosignature Chemistry in Earth-like Atmospheres
• Assessing the habitability of planets with Earth-like atmospheres with 1D and 3D climate modeling
• Spectroscopic characterization of the atmospheres of potentially habitable planets: GL 581 d as a model case study
• Transmission Spectroscopy with the ACE-FTS Infrared Spectral Atlas of Earth: A Model Validation and Feasibility Study
• Evolution of Earth-like planetary atmospheres around M-dwarf stars: Assessing the atmospheres and biospheres with a coupled atmosphere biogeochemical model
• Effect of O3 on the atmospheric temperature structure of early Mars
• The effect of varying atmospheric pressure upon habitability and biosignatures of Earth-like planets
• The HOSTS Survey for Exozodiacal Dust: Preliminary results and future prospects

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• Atmospheric carbon depletion as a tracer of water oceans and biomass on temperate terrestrial exoplanets
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• MIRECLE: Science Yield for a Mid-IR Explorer-Class Mission to Study Non-Transiting Rocky Planets Orbiting the Nearest M-Stars Using Planetary Infrared Excess
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