The Demographics of Terrestrial Planets in the Venus Zone
arXiv:2302.03055 · doi:10.3847/1538-3881/acbfaf
Abstract
Understanding the physical characteristics of Venus, including its atmosphere, interior, and its evolutionary pathway with respect to Earth, remains a vital component for terrestrial planet evolution models and the emergence and/or decline of planetary habitability. A statistical strategy for evaluating the evolutionary pathways of terrestrial planets lies in the atmospheric characterization of exoplanets, where the sample size provides sufficient means for determining required runaway greenhouse conditions. Observations of potential exoVenuses can help confirm hypotheses about Venus' past, as well as the occurrence rate of Venus-like planets in other systems. Additionally, the data from future Venus missions, such as DAVINCI, EnVision, and VERITAS, will provide valuable information regarding Venus, and the study of exoVenuses will be complimentary to these missions. To facilitate studies of exoVenus candidates, we provide a catalog of all confirmed terrestrial planets in the Venus Zone, including transiting and non-transiting cases, and quantify their potential for follow-up observations. We examine the demographics of the exoVenus population with relation to stellar and planetary properties, such as the planetary radius gap. We highlight specific high-priority exoVenus targets for follow-up observations including: TOI-2285 b, LTT 1445 A c, TOI-1266 c, LHS 1140 c, and L98-59 d. We also discuss follow-up observations that may yield further insight into the Venus/Earth divergence in atmospheric properties.
arXiv comment27 pages, 7 figures, accepted for publication in the Astronomical Journal
References in corpus (75)
- SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
- Array Programming with NumPy
- The Transiting Exoplanet Survey Satellite
- Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
- Habitable Zones Around Main-Sequence Stars: New Estimates
- The California-Kepler Survey. III. A Gap in the Radius Distribution of Small Planets
- A terrestrial planet candidate in a temperate orbit around Proxima Centauri
- Catalog of Nearby Exoplanets
- The Occurrence and Architecture of Exoplanetary Systems
- The NASA Exoplanet Archive: Data and Tools for Exoplanet Research
- Kepler planets: a tale of evaporation
- Most 1.6 Earth-Radius Planets are not Rocky
- Habitable Zones Around Main-Sequence Stars: Dependence on Planetary Mass
- Probabilistic Forecasting of the Masses and Radii of Other Worlds
- A Framework for Prioritizing the TESS Planetary Candidates Most Amenable to Atmospheric Characterization
- Extreme Water Loss and Abiotic O Buildup On Planets Throughout the Habitable Zones of M Dwarfs
- Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life
- An asteroseismic view of the radius valley: stripped cores, not born rocky
- The Role of Core Mass in Controlling Evaporation: the Kepler Radius Distribution and the Kepler-36 Density Dichotomy
- The LCES HIRES/Keck Precision Radial Velocity Exoplanet Survey
- State of the Field: Extreme Precision Radial Velocities
- Exoplanet Biosignatures: Understanding Oxygen as a Biosignature in the Context of Its Environment
- Was Venus the First Habitable World of our Solar System?
- Observing the Atmospheres of Known Temperate Earth-sized Planets with JWST
- The Detectability and Characterization of the TRAPPIST-1 Exoplanet Atmospheres with JWST
- The cosmic shoreline: the evidence that escape determines which planets have atmospheres, and what this may mean for Proxima Centauri b
- A public HARPS radial velocity database corrected for systematic errors
- Revealing the Mysteries of Venus: The DAVINCI Mission
- The statistics of multi-planet systems
- Exoplanet Biosignatures: Observational Prospects
- Predictions of the atmospheric composition of GJ 1132b
- Venusian Habitable Climate Scenarios: Modeling Venus through time and applications to slowly rotating Venus-Like Exoplanets
- The HARPS search for southern extra-solar planets XLI. A dozen planets around the M dwarfs GJ 3138, GJ 3323, GJ 273, GJ 628, and GJ 3293
- Evolved Climates and Observational Discriminants for the TRAPPIST-1 Planetary System
- The CARMENES search for exoplanets around M dwarfs. Two temperate Earth-mass planet candidates around Teegarden's Star
- A Catalog of Kepler Habitable Zone Exoplanet Candidates
- Day-night cloud asymmetry prevents early oceans on Venus but not on Earth
- Scaling the Earth: A Sensitivity Analysis of Terrestrial Exoplanetary Interior Models
- Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization
- The Twenty-Five Year Lick Planet Search
- 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
- Identifying Planetary Biosignature Impostors: Spectral Features of CO and O4 Resulting from Abiotic O2/O3 Production
- Warm terrestrial planet with half the mass of Venus transiting a nearby star
- Carbon cycling and habitability of Earth-size stagnant lid planets
- On the Frequency of Potential Venus Analogs from Kepler Data
- Venus as a Laboratory for Exoplanetary Science
- A super-Earth and a sub-Neptune orbiting the bright, quiet M3 dwarf TOI-1266
- Strategies for Constraining the Atmospheres of Temperate Terrestrial Planets with JWST
- A Versatile Technique to Enable sub-milli-Kelvin Instrument Stability for Precise Radial Velocity Measurements: Tests with the Habitable-zone Planet Finder
- Planetary system LHS 1140 revisited with ESPRESSO and TESS
- The Exoplanet Orbital Eccentricity - Multiplicity Relation and the Solar System
- Radial velocity follow-up of GJ1132 with HARPS. A precise mass for planet 'b' and the discovery of a second planet
- The Pressure and Temperature Limits of Likely Rocky Exoplanets
- Architectures of Planetary Systems and Implications for their Formation
- Red Dots: A temperate 1.5 Earth-mass planet in a compact multi-terrestrial planet system around GJ1061
- The Solar System as an Exoplanetary System
- Transmission spectrum of Venus as a transiting exoplanet
- Solar System Physics for Exoplanet Research
- Telling twins apart: Exo-Earths and Venuses with transit spectroscopy
- The Catalog of Earth-Like Exoplanet Survey TArgets (CELESTA): A Database of Habitable Zones around Nearby Stars
- A planetary system with two transiting mini-Neptunes near the radius valley transition around the bright M dwarf TOI-776
- A Second Planet Transiting LTT 1445A and a Determination of the Masses of Both Worlds
- Habitability of Earth-like stagnant lid planets: Climate evolution and recovery from snowball states
- O2- and CO-Rich Atmospheres for Potentially Habitable Environments on TRAPPIST-1 Planets
- Observing Isotopologue Bands in Terrestrial Exoplanet Atmospheres with the James Webb Space Telescope---Implications for Identifying Past Atmospheric and Ocean Loss
- Probabilistic Constraints on the Mass and Composition of Proxima b
- Target Prioritization and Observing Strategies for the NEID Earth Twin Survey
- The Fundamental Connections Between the Solar System and Exoplanetary Science
- Predicting the Yield of Potential Venus Analogs from TESS and their Potential for Atmospheric Characterization
- Finding the Needles in the Haystacks: High-Fidelity Models of the Modern and Archean Solar System for Simulating Exoplanet Observations
- Close encounters of a rotating star with planets in parabolic orbits of varying inclination and the formation of Hot Jupiters
- TESS Habitable Zone Star Catalog
- On the Orbital Inclination of Proxima Centauri b
- TOI-2285b: A 1.7 Earth-radius Planet Near the Habitable Zone around a Nearby M Dwarf
- 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
Cited by in corpus (8)
- TESS discovery of two super-Earths orbiting the M-dwarf stars TOI-6002 and TOI-5713 near the radius valley
- Role of Planetary Radius on Atmospheric Escape of Rocky Exoplanets
- Simple lipids form stable higher-order structures in concentrated sulfuric acid
- Tracing the Inner Edge of the Habitable Zone with Sulfur Chemistry
- The climates and thermal emission spectra of prime nearby temperate rocky exoplanet targets
- Modeling Atmospheric Ion Escape from Kepler-1649 b and c over Time
- The TESS-Keck Survey. XIX. A Warm Transiting Sub-Saturn Mass Planet and a non-Transiting Saturn Mass Planet Orbiting a Solar Analog
- Retention of surface water on tidally locked rocky planets in the Venus zone around M dwarfs