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A Milky Way with a massive, centrally concentrated thick disc: new Galactic mass models for orbit computations
Ektoras Pouliasis, Paola Di Matteo, Misha Haywood
In this work, two new axisymmetric models for the Galactic mass distribution are presented. Motivated by recent results, these two models include the contribution of a stellar thin…
On the kinematic detection of accreted streams in the Gaia era: a cautionary tale
I. Jean-Baptiste, P. Di Matteo, M. Haywood +4
The CDM cosmological scenario predicts that our Galaxy should contain hundreds of stellar streams at the solar vicinity, fossil relics of the merging history of the Milky Way an…
Hiding its age: the case for a younger bulge
M. Haywood, P. Di Matteo, O. Snaith +1
The determination of the age of the bulge has led to two contradictory results. On the one side, the color-magnitude diagrams in different bulge fields seem to indicate a uniformly…
The disc origin of the Milky Way bulge
P. Di Matteo
The Galactic bulge, that is the prominent out-of-plane over-density present in the inner few kiloparsecs of the Galaxy, is a complex structure, as the morphology, kinematics, chemi…
When the Milky Way turned off the lights: APOGEE provides evidence of star formation quenching in our Galaxy
M. Haywood, M. D. Lehnert, P. Di Matteo +4
Quenching, the cessation of star formation, is one of the most significant events in the life cycle of galaxies. We show here the first evidence that the Milky Way experienced a ge…