The advent of the second data release of the Gaia mission, in combination with data from
large spectroscopic surveys, is revolutionizing our understanding of the Galaxy. Thanks to …

We review the recent theoretical and observational developments concerning the interaction
of the Large Magellanic Cloud (LMC) with the Milky Way and its neighbourhood. An …

Abstract The Milky Way halo was predominantly formed by the merging of numerous
progenitor galaxies. However, our knowledge of this process is still incomplete, especially in …

We assemble a catalogue of candidate Sagittarius stream members with 5D and 6D phase-
space information, using astrometric data from Gaia DR2, distances estimated from RR …

The gravitational wave detectors have shown a population of massive black holes that do
not resemble those observed in the Milky Way,–and whose origin is debated,–. According to …

Abstract We describe the Milky Way Survey (MWS) that will be undertaken with the Dark
Energy Spectroscopic Instrument (DESI) on the Mayall 4 m telescope at the Kitt Peak …

We combine Gaia early data release 3 astrometry with accurate photometry and utilize a
probabilistic mixture model to measure the systemic proper motion of 52 dwarf spheroidal …

Nearly a hundred stellar streams have been found to date around the Milky Way and the
number keeps growing at an ever faster pace. Here we present the galstreams library, a …

We present a 6D map of the Orphan–Chenab (OC) stream by combining the data from
Southern Stellar Stream Spectroscopic Survey (S 5) and Gaia. We reconstruct the proper …

Stellar streams are excellent probes of the underlying gravitational potential in which they
evolve. In this work, we fit dynamical models to five streams in the Southern Galactic …