feb 132013
Gaia will Reveal the Secrets of Ultracool Dwarfs

  Among the hundred billion stars which can be observed in the Milky Way, there is a group of stars, the so-named ultracool dwarfs, defined as stars with a temperature below 2500 K, which includes ultracool dwarfs and brown dwarfs. It is a really interesting group: they are the most ancient objects in our Galaxy [continue reading]