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The analysis of realistic Stellar Gaia mock catalogues. I. Red Clump Stars as tracers of the central bar
Merce Romero-Gomez, Francesca Figueras, Teresa Antoja +2
In this first paper we simulate the population of disc Red Clump stars to be observed by Gaia. We generate a set of test particles and we evolve it in a 3D barred Milky Way like ga…
A novel method to bracket the corotation radius in galaxy disks: vertex deviation maps
Santi Roca-Fàbrega, Teresa Antoja, Francesca Figueras +3
We map the kinematics of stars in simulated galaxy disks with spiral arms using the velocity ellipsoid vertex deviation (l). We use test particle simulations, and for the first…
The Galactic bar and the large scale velocity gradients in the Galactic disk
Giacomo Monari, Amina Helmi, Teresa Antoja +1
Aims: We investigate whether the cylindrical (galactocentric) radial velocity gradient of ~ -3 km/s/kpc, directed radially from the Galactic center and recently observed in the sta…