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 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 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, 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 […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets
Microlensing Events by Proxima Centauri in 2014 and 2016: Opportunities for Mass Determination and Possible Planet Detection
We have found that Proxima Centauri, the star closest to our Sun, will pass close to a pair of faint background stars in the next few years. Using Hubble Space […]