Fredagskollokvium: Gaia’s five years of operation and its exciting Science

Francesca Figueras, Institute of Cosmos Science, University of Barcelona (Spain) 

We will start with an overview of the basic principles and current status of the Gaia (ESA

Artist's impression of Gaia. Credits: ESA

astrometric mission, in its science operational phase since July 2014. After a quick review of the Gaia processing strategy we will describe the contents of the Gaia Data Release 2 (GDR2), published on April 25th 2018. On view of the very precise parallaxes, proper motions, photometry and radial velocities already available, we will comment on new, stimulating and provocative discoveries, from the detected spiral in the phase space plane or the solar neighbourhood to the new area Gaia is opening for studies based both on stellar evolution and stellar population synthesis modeling.

Gaia's all-sky view of our Milky Way Galaxy and neighbouring galaxies, based on measurements of nearly 1.7 billion stars. Credits: ESA/Gaia/DPAC, CC BY-SA 3.0 IGO
Publisert 18. apr. 2018 14:03 - Sist endret 26. nov. 2018 15:27