We present a three-species multi-fluid MHD model (H+, H2O+ and e−), endowed with the requisite atmospheric chemistry, that is capable of accurately quantifying the magnitude of water ion losses from […]
extrasolar
Posted inExoplanets, -moons, -comets, Press Release
Astrophysicists Predict Earth-like Planet in Star System 16 Light Years Away
Astrophysicists at the University of Texas at Arlington have predicted that an Earth-like planet may be lurking in a star system just 16 light years away. The team investigated the […]
Posted inExoplanets, -moons, -comets, Press Release, tau Ceti
Four Earth-sized Planets Detected Orbiting tau Ceti
A new study by an international team of astronomers reveals that four Earth-sized planets orbit the nearest sun-like star, tau Ceti, which is about 12 light years away and visible […]
Posted inExoplanets, -moons, -comets, Press Release
Characterization Of The K2-18 Multi-planetary System With HARPS
The bright M dwarf K2-18 at 34 pc is known to host a transiting super-Earth-sized planet orbiting within the star’s habitable zone; K2-18b. Given the superlative nature of this system […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release
Migrating Jupiter Up To The Habitable Zone: Earth-like Planet Formation and Water Delivery
Several observational works have shown the existence of Jupiter-mass planets covering a wide range of semi-major axes around Sun-like stars. We aim to analyse the planetary formation processes around Sun-like […]
Posted inExoplanets, -moons, -comets, Press Release
Extrasolar Planets and Their Host Stars
In order to understand the exoplanet, you need to understand its parent star. Astrophysical parameters of extrasolar planets are directly and indirectly dependent on the properties of their respective host […]
Posted inHabitable Zones, Press Release
Exomoon Habitability and Tidal Evolution in Low-Mass Star Systems
Discoveries of extrasolar planets in the habitable zone (HZ) of their parent star lead to questions about the habitability of massive moons orbiting planets in the HZ. Around low-mass stars, […]
Posted inHabitable Zones, Press Release
Extreme Atmosphere Stripping May Limit Exoplanets' Habitability
New models of massive stellar eruptions hint at an extra layer of complexity when considering whether an exoplanet may be habitable or not. Models developed for our own Sun have […]
Posted inExoplanets, -moons, -comets, Press Release
New Branch in Family Tree of Exoplanets Discovered
Since the mid-1990s, when the first planet around another Sun-like star was discovered, astronomers have been amassing what is now a large collection of exoplanets — nearly 3,500 have been […]
Posted inHabitable Zones, Press Release
Comparative Climates of TRAPPIST-1 Planetary System: Results From a Simple Climate-Vegetation Model
The recent discovery of the planetary system hosted by the ultracool dwarf star TRAPPIST-1 could open new perspectives into the investigation of planetary climates of Earth-sized exoplanets, their atmospheres and […]