Characteristics of aquatic biospheres on temperate planets around Sun-like stars and M-dwarfs

Abstract

Aquatic biospheres reliant on oxygenic photosynthesis are expected to play an important role on Earth-like planets endowed with large-scale oceans insofar as carbon fixation (i.e., biosynthesis of organic compounds) is concerned. We investigate the properties of aquatic biospheres comprising Earth-like biota for habitable rocky planets orbiting Sun-like stars and late-type M-dwarfs such as TRAPPIST-1. In particular, we estimate how these characteristics evolve with the available flux of photosynthetically active radiation (PAR) and the ambient ocean temperature ($T_W$), the latter of which constitutes a key environmental variable. We show that many salient properties, such as the depth of the photosynthesis zone and the net primary productivity (i.e., the effective rate of carbon fixation), are sensitive to PAR flux and $T_W$ and decline substantially when the former is decreased or the latter is increased. We conclude by exploring the implications of our analysis for exoplanets around Sun-like stars and M-dwarfs.

arXiv commentAccepted for publication in MNRAS; 40 pages; 5 pages; 1 table

References in corpus (84)

• Habitable Zones Around Main-Sequence Stars: New Estimates
• Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1
• 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
• Extreme Water Loss and Abiotic O${}_2$ Buildup On Planets Throughout the Habitable Zones of M Dwarfs
• Exoplanet Biosignatures: A Review of Remotely Detectable Signs of Life
• Stabilizing Cloud Feedback Dramatically Expands the Habitable Zone of Tidally Locked Planets
• A New Family of Planets ? "Ocean Planets"
• Vegetation's Red Edge: A Possible Spectroscopic Biosignature of Extraterrestrial Plants
• A Re-appraisal of the Habitability of Planets Around M Dwarf Stars
• The nature of the TRAPPIST-1 exoplanets
• Exoplanetary Atmospheres: Key Insights, Challenges and Prospects
• Increased insolation threshold for runaway greenhouse processes on Earth like planets
• Exoplanet Biosignatures: Understanding Oxygen as a Biosignature in the Context of Its Environment
• The Habitability of Planets Orbiting M-dwarf Stars
• Compositional imprints in density-distance-time: a rocky composition for close-in low-mass exoplanets from the location of the valley of evaporation
• Spectral signatures of photosynthesis II: coevolution with other stars and the atmosphere on extrasolar worlds
• How to Characterize Habitable Worlds and Signs of Life
• Impact of Space Weather on Climate and Habitability of Terrestrial Type Exoplanets
• The inner edge of the habitable zone for synchronously rotating planets around low-mass stars using general circulation models
• Abiotic oxygen-dominated atmospheres on terrestrial habitable zone planets
• Tidal Locking of Habitable Exoplanets
• Atmospheric escape from the TRAPPIST-1 planets and implications for habitability
• Abiotic O${}_2$ Levels on Planets around F, G, K, and M Stars: Possible False Positives for Life?
• Water loss from terrestrial planets with CO2-rich atmospheres
• Exoplanet Biosignatures: Observational Prospects
• Volatile-Rich Earth-Mass Planets in the Habitable Zone
• Is Proxima Centauri b habitable? -- A study of atmospheric loss
• Towards the Minimum Inner Edge Distance of the Habitable Zone
• Indication of insensitivity of planetary weathering behavior and habitable zone to surface land fraction
• Superhabitable Worlds
• The Runaway Greenhouse: implications for future climate change, geoengineering and planetary atmospheres
• Habitability of Exoplanet Waterworlds
• Early 2017 observations of TRAPPIST-1 with $\text{Spitzer}$
• Venus as a Laboratory for Exoplanetary Science
• Transition to a Moist Greenhouse with CO${}_2$ and solar forcing
• Constraints on Climate and Habitability for Earth-like Exoplanets Determined from a General Circulation Model
• False negatives for remote life detection on ocean-bearing planets: Lessons from the early Earth
• Risks for life on habitable planets from superflares of their host stars
• A more comprehensive habitable zone for finding life on other planets
• Water Cycling Between Ocean and Mantle: Super-Earths Need Not be Waterworlds
• Modeling Martian Atmospheric Losses over Time: Implications for Exoplanetary Climate Evolution and Habitability
• Swansong Biospheres: Refuges for life and novel microbial biospheres on terrestrial planets near the end of their habitable lifetimes
• The Potential of Planets Orbiting Red Dwarf Stars to Support Oxygenic Photosynthesis and Complex Life
• Ocean Dynamics and the Inner Edge of the Habitable Zone for Tidally Locked Terrestrial Planets
• Oceanographic Considerations for Exoplanet Life Detection
• Physical constraints for the evolution of life on exoplanets
• Interior characterization in multiplanetary systems: TRAPPIST-1
• A Limited Habitable Zone for Complex Life
• Impact of Stellar Superflares on Planetary Habitability
• Water Planets in the Habitable Zone: Atmospheric Chemistry, Observable Features, and the case of Kepler-62e and -62f
• The dehydration of water worlds via atmospheric losses
• Atmospheric Escape From TOI-700 d: Venus versus Earth Analogs
• Habitability of waterworlds: runaway greenhouses, atmospheric expansion and multiple climate states of pure water atmospheres
• Subsurface Exolife
• Swansong Biospheres II: The final signs of life on terrestrial planets near the end of their habitable lifetimes
• Stratospheric Temperatures and Water Loss from Moist Greenhouse Atmospheres of Earth-like Planets
• The Ice Cap Zone: A Unique Habitable Zone for Ocean Worlds
• No Snowball on Habitable Tidally Locked Planets with a Dynamic Ocean
• Dependence of Biological Activity on the Surface Water Fraction of Planets
• Role of planetary obliquity in regulating atmospheric escape: G-dwarf vs. M-dwarf Earth-like exoplanets
• The Effect of Substellar Continent Size on Ocean Dynamics of Proxima Centauri b
• Is Extraterrestrial Life Suppressed on Subsurface Ocean Worlds due to the Paucity of Bioessential Elements?
• Photosynthesis on habitable planets around low-mass stars
• The UV surface habitability of Proxima b: first experiments revealing probable life survival to stellar flares
• Red-edge position of habitable exoplanets around M-dwarfs
• Implications of tides for life on exoplanets
• Buildup of Abiotic Oxygen and Ozone in Moist Atmospheres of Temperate Terrestrial Exoplanets and its Impact on the Spectral Fingerprint in Transit Observations
• Stellar Proton Event-induced surface radiation dose as a constraint on the habitability of terrestrial exoplanets
• Brown Dwarf Atmospheres as the Potentially Most Detectable and Abundant Sites for Life
• From climate models to planetary habitability: temperature constraints for complex life
• Superflare UV flashes impact on Kepler-96 system: a glimpse of habitability when the ozone layer first formed on Earth
• Expanding the Timeline for Earth's Photosynthetic Red Edge Biosignature
• Photosynthesis on Exoplanets and Exomoons from Reflected Light
• Survival Function Analysis of Planet Size Distribution with GAIA Data Release 2 Updates
• Climates of Warm Earth-Like Planets III: Fractional Habitability from a Water Cycle Perspective
• Optimal Target Stars in the Search for Life
• Climate bistability of Earth-like exoplanets
• Prospects for Life on Temperate Planets Around Brown Dwarfs
• Potential For Liquid Water Biochemistry Deep Under The Surfaces Of The Moon, Mars And Beyond
• Constraints on Aquatic Photosynthesis for Terrestrial Planets Around Other Stars
• Implications of Abiotic Oxygen Buildup for Earth-like Complex Life
• Nutrient Supply to Planetary Biospheres from Anoxic Weathering of Mafic Oceanic Crust

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• A Bayesian Analysis of Technological Intelligence in Land and Oceans
• A New Definition of Exoplanet Habitability: Introducing the Photosynthetic Habitable Zone
• Water versus land on temperate rocky planets