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Velocity and abundance precisions for future high-resolution spectroscopic surveys: a study for 4MOST
E. Caffau, A. Koch, L. Sbordone +19
In preparation for future, large-scale, multi-object, high-resolution spectroscopic surveys of the Galaxy, we present a series of tests of the precision in radial velocity and chem…
Chemodynamical evolution of the Milky Way disk I: The solar vicinity
I. Minchev, C. Chiappini, M. Martig
[Abridged] In this first paper of this series, we present a new approach for studying the chemo-dynamical evolution in disk galaxies, which consists of fusing disk chemical evoluti…
The properties of the local spiral arms from RAVE data: two-dimensional density wave approach
A. Siebert, B. Famaey, J. Binney +19
Using the RAVE survey, we recently brought to light a gradient in the mean galactocentric radial velocity of stars in the extended solar neighbourhood. This gradient likely origina…
Vertical density waves in the Milky Way disc induced by the Sagittarius Dwarf Galaxy
Facundo A. Gómez, Ivan Minchev, Brian W. O'Shea +3
Recently, Widrow and collaborators announced the discovery of vertical density waves in the Milky Way disk. Here we investigate a scenario where these waves were induced by the Sag…
4MOST - 4-metre Multi-Object Spectroscopic Telescope
Roelof S. de Jong, Olga Bellido-Tirado, Cristina Chiappini +82
The 4MOST consortium is currently halfway through a Conceptual Design study for ESO with the aim to develop a wide-field (>3 square degree, goal >5 square degree), high-multiplex (…
Radial Migration Does Little for Galactic Disc Thickening
I. Minchev, B. Famaey, A. C. Quillen +3
Non-axisymmetric components, such as spirals and central bars, play a major role in shaping galactic discs. An important aspect of the disc secular evolution driven by these pertur…