A collaborative study led by Dr. Christopher Gisriel at Yale University and Dr. Tanai Cardona at Queen Mary University of London, published in Frontiers in Plant Science, offers new insight […]
Proxima Centauri
Posted inAstrochemistry, Astrogeology, Exoplanets, -moons, -comets, Icy Worlds, Proxima Centauri, Status Report
Delivery of Icy Planetesimals to Inner Planets in the Proxima Centauri Planetary System
The estimates of the delivery of icy planetesimals from the feeding zone of Proxima Centauri c (with mass equal to 7mE, mE is the mass of the Earth) to inner […]
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Proxima Centauri, Status Report
Visible Extreme Adaptive Optics On Extremely Large Telescopes: Towards Detecting Oxygen In Proxima Centauri b And Analog
Looking to the future of exo-Earth imaging from the ground, core technology developments are required in visible extreme adaptive optics (ExAO) to enable the observation of atmospheric features such as […]
Posted inExoplanets, -moons, -comets, Press Release, Proxima Centauri
Stable Orbits in the Feeding Zone of the Planet Proxima Centauri c
Estimates of the size of the feeding zone of the planet Proxima Centauri c have been made at initial orbital eccentricities of planetesimals equal to 0.02 or 0.15.
Posted inAI - Data - Apps - Cybernetics, Away Teams & Field Reports, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Exploration Gear & Tech, Habitable Zones, Imaging & Spectroscopy, Missions & Hardware, Proxima Centauri, Status Report
Away Team Tech: Proxima Centauri Interstellar Flyby Scientific Data Downlink Design
Editor’s note: one of the prime interests in the Proxima Centauri system (in addition to its proximity to Earth) is the presence of at least one of three detected planets […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, Proxima Centauri, Space Weather & Heliophysics
Revisiting The Space Weather Environment Of Proxima Centauri b
Close-in planets orbiting around low-mass stars are exposed to intense energetic photon and particle radiation and harsh space weather.
Posted inAlpha Centauri, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Proxima Centauri, Space Weather & Heliophysics, TRAPPIST-1
Stellar Space Weather Effects On Potentially Habitable Planets
Stellar activity can reveal itself in the form of radiation (eg, enhanced X-ray coronal emission, flares) and particles (eg, winds, coronal mass ejections). Together, these phenomena shape the space weather […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Press Release, Proxima Centauri, TRAPPIST-1, Water/Hycean Worlds & Oceanography
Traveling Planetary-scale Waves Cause Cloud Variability On Tidally Locked Aquaplanets
Cloud cover at the planetary limb of water-rich Earth-like planets is likely to weaken chemical signatures in transmission spectra, impeding attempts to characterize these atmospheres.
Posted inBiosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release, Proxima Centauri
Lightning-induced Chemistry On tidally-locked Earth-like Exoplanets
Determining the habitability and interpreting atmospheric spectra of exoplanets requires understanding their atmospheric physics and chemistry.
Posted inExoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, Proxima Centauri
AlH Lines In The Blue Spectrum Of Proxima Centauri
The recently-computed ExoMol line lists for isotopologues of AlH are used to analyse the blue spectrum (4000-4500 Å) of Proxima Cen (M5.5 V). Comparison of the observed and computed spectra […]