At a distance of 1.295 parsecs, the red-dwarf Proxima Centauri (α Centauri C, GL 551, HIP 70890, or simply Proxima) is the Sun’s closest stellar neighbor and one of the […]
Proxima Centauri
Posted inPress Release, Proxima Centauri
Geomagnetic Properties of Proxima Centauri b Analogues
The recent discovery of a planet around the closest star, Proxima Centauri, could represent a quantum leap on the testability of models in exoplanet sciences. Unlike any other discovered exoplanet, […]
Posted inHabitable Zones, Press Release, Proxima Centauri
The Habitability of Proxima Centauri b: Environmental States and Observational Discriminants
Proxima Centauri b provides an unprecedented opportunity to understand the evolution and nature of terrestrial planets orbiting M dwarfs. Although Proxima Cen b orbits within its star’s habitable zone, multiple […]
Posted inAstronomy & Telescopes, Press Release, Proxima Centauri
Calculations of Periodicity From Hα Profiles of Proxima Centauri
We investigate retrieval of the stellar rotation signal for Proxima Centauri. We make use of high-resolution spectra taken with uves and harps of Proxima Centauri over a 13-year period as […]
Posted inHabitable Zones, Press Release, Proxima Centauri
Could Proxima Centauri b Really Be Habitable?
The world’s attention is now on Proxima Centauri b, a possibly Earth-like planet orbiting the closest star, 4.22 light-years away. The planet’s orbit is just right to allow liquid water […]
Posted inHabitable Zones, Press Release, Proxima Centauri
Prospects for Characterizing the Atmosphere of Proxima Centauri b
The newly detected Earth-mass planet in the habitable zone of Proxima Centauri could potentially host life – if it has an atmosphere that supports surface liquid water. We show that […]
Posted inHabitable Zones, Press Release, Proxima Centauri
Tutorial Models of the Climate and Habitability of Proxima Centauri b
Proxima Centauri b, an Earth-size planet in the habitable zone of our nearest stellar neighbour, has just been discovered. A theoretical framework of synchronously rotating planets, in which the risk […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, Proxima Centauri
The Habitability of Proxima Centauri b I: Evolutionary Scenarios
We analyze the evolution of the potentially habitable planet Proxima Centauri b to identify environmental factors that affect its long-term habitability. We consider physical processes acting on size scales ranging […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release, Proxima Centauri
Rocky Planet Found in Habitable Zone of Proxima Centauri
An international team of astronomers including Carnegie’s Paul Butler has found clear evidence of a planet orbiting Proxima Centauri, the closest star to our solar system. The new world, designated […]
Posted inExoplanets, -moons, -comets, Press Release, Proxima Centauri
Proxima Centauri as a Benchmark for Stellar Activity Indicators in the Near Infrared
A new generation of dedicated Doppler spectrographs will attempt to detect low-mass exoplanets around mid-late M stars at near infrared (NIR) wavelengths, where those stars are brightest and have the […]