Now showing items 1-10 of 219
First light of the VLT planet finder SPHERE IV : Physical and chemical properties of the planets around HR8799
Context. The system of four planets discovered around the intermediate-mass star HR8799 offers a unique opportunity to test planet formation theories at large orbital radii and to probe the physics and chemistry at play ...
Discovery of a brown dwarf companion to the A3V star β Circini
We report the discovery of an L dwarf companion to the A3V star β Circini. VVV J151721.49−585131.5, or β Cir B, was identified in a proper motion and parallax catalogue of the VISTA Variables in the Vía Láctea survey as ...
Hundreds of new cluster candidates in the VISTA Variables in the Vía Láctea survey DR1
Context. VISTA variables in the Vía Láctea is an ESO Public survey dedicated to scanning the bulge and an adjacent portion of the Galactic disk in the fourth quadrant using the VISTA telescope and its near-infrared camera ...
Methane and ammonia in the near-infrared spectra of late-T dwarfs
Analysis of T dwarfs using model atmospheres has been hampered by the absence of reliable line lists for methane and ammonia. Newly computed high-temperature line lists for both of these important molecules are now available, ...
SKYWAY '09: Awareness of the Sky/ The Sky as Awareness - International Light Festival, Impressions and Reflections on the Proceedings
Two artists, two astrophysicists, a historian of science, a musician, the Skyway Festival director and the Toruń 2016 director met over two days on the 15th and 16th of August in this beautiful gothic city to discuss the ...