By analysing the transit LC of a planet-hosting star or the induced RV oscillations, many useful information on the planet may be retrieved. However, inferring the physical parameters of the […]
extrasolar planets
Posted inAstronomy & Telescopes, Press Release
Ground-Based Radial Velocity as Critical Support for Future NASA Earth-Finding Missions
Future space-based direct imaging missions are poised to search for biosignatures in the atmospheres of potentially habitable planets orbiting nearby AFGKM stars. Although these missions could conduct a survey of […]
Posted inExoplanets, -moons, -comets, Press Release
Toward Finding Earth 2.0: Masses And Orbits Of Small Planets With Extreme Radial Velocity Precision
Having discovered that Earth-sized planets are common, we are now embarking on a journey to determine if Earth-like planets are also common. Finding Earth-like planets is one of the most […]
Posted inHabitable Zones, Press Release
The Case of the Over-Tilting Planets
For almost a decade, astronomers have tried to explain why so many pairs of planets outside our solar system have an odd configuration — their orbits seem to have been […]
Posted inHabitable Zones, Press Release
Looking for Signs of Alien Life On HR 8799c
Astronomers have gleaned some of the best data yet on the composition of a planet known as HR 8799c — a young giant gas planet about 7 times the mass […]
Posted inHabitable Zones, Press Release
Algorithm Takes Search for Habitable Planets to the Next Level
An international team of scientists, including high performance computing (HPC) experts from the King Abdullah University for Science and Technology (KAUST), astronomers from the Paris Observatory and the National Astronomical […]
Posted inExoplanets, -moons, -comets, Press Release
Earth As An Exoplanet
The search for habitable and inhabited environments beyond our planet commonly focuses on analogs to Earth, especially in the case of exoplanets. Observations from ground-based facilities, satellites, and spacecraft have […]
Posted inExoplanets, -moons, -comets, Press Release
Exoplanetary Atmosphere Target Selection in the Era of Comparative Planetology
Large-scale transit surveys such as NGTS, TESS and PLATO promise to deliver a wealth of potential targets for follow-up transmission spectroscopy study. This will usher in an era of comparative […]
Posted inExoplanets, -moons, -comets, Habitable Zones
Migration of Earth-size planets in 3D Radiative Discs
In this paper, we address the migration of small mass planets in 3D radiative disks. Indeed, migration of small planets is known to be too fast inwards in locally isothermal […]
Posted inExoplanets, -moons, -comets, Habitable Zones
Remote Life Detection Criteria, Habitable Zone Boundaries, and the Frequency of Earthlike Planets around M and Late-K Stars
The habitable zone (HZ) around a star is typically defined as the region where a rocky planet can maintain liquid water on its surface. That definition is appropriate, because this […]