Dynamics with Gaia in the Magellanic Clouds (M. Romero-Gómez, 9/3/2023)
Channel: Academy of Athens
Date: 2023-05-17

M. Romero-Gómez
Departament de Física Quàntica i Astrofísica (FQA), Universitat de Barcelona, Spain

Abstract: 
The accuracy of the Gaia EDR3 astrometry and photometry allows a detailed selection of sources in the Large Magellanic Cloud and Small Magellanic Cloud, with even a subselection depending on the evolutionary phase. Additionally, the 33 million sources with line-of-sight velocities Gaia released in DR3 promise new insights into galactic dynamics, especially for nearby galaxies such as the Large Magellanic Cloud, having full 3D kinematics for about 30 thousand stars. It is the time to challenge dynamical models and test them with our neighbor galaxy. In this talk, I will present the new selection strategy to select stars in the Large and Small Magellanic Clouds, the separation into evolutionary phases and the construction of new 3D kinematic maps. The fascinating quality of the data opens a new striking window to reveal dynamical secrets of the galaxy.