535 citations · 1.1k across the 12 of their papers we have counts for
12 papers
A new Gaia census of OB associations within 1 kpc
Alexis L. Quintana, Nicholas J. Wright, Lilly A. Kormann +6
OB associations are primordial tracers of star formation and Galactic structure. Originally defined about 80 years ago, their historical membership lists have been superseded thank…
Quadrupole signature as a kinematic diagnostic to constrain bar properties : implications for the Milky Way
Soumavo Ghosh, Taavet Kalda, Paola Di Matteo +4
The presence of a 'butterfly' or a quadrupole structure in the stellar mean radial velocity () field of the Milky Way is well known from the Gaia and the APOGEE surveys. Pas…
New stellar age estimates using SPInS based on Gaia DR3 photometry and LAMOST DR8 abundances
L. Casamiquela, D. R. Reese, Y. Lebreton +8
Reliable stellar age estimates are fundamental for testing several problems in modern astrophysics, in particular since they set the time scales of Galactic dynamical and chemical…
The disc origin of the Milky Way bulge: On the high velocity dispersion of metal-rich stars at low latitude
Tristan Boin, Paola Di Matteo, Sergey Khoperskov +5
Previous studies of the chemo-kinematic properties of stars in the Galactic bulge have revealed a puzzling trend. Along the bulge minor axis, and close to the Galactic plane, metal…
Timing the Milky Way bar formation and the accompanying radial migration episode
Misha Haywood, Sergey Khoperskov, Valeria Cerqui +3
We derive the metallicity profile of the Milky Way low- disc population from 2 to 20 kpc from the Galactic centre in 1 Gyr age bins using the astroNN catalogue, and show that it…
Hic sunt dracones: Cartography of the Milky Way spiral arms and bar resonances with Gaia Data Release 2
S. Khoperskov, O. Gerhard, P. Di Matteo +5
In this paper we introduce a new method for analysing Milky Way phase-space which allows us to reveal the imprint left by the Milky Way bar and spiral arms on the stars with full p…
HIP 21539 is not a past very close neighbour of the Sun
F. Crifo, C. Soubiran, G. Jasniewicz +3
Aims: A previous study claimed that the star HIP 21539 passed close to the Sun, at a distance of 1.9 pc, around 0.14 Myr ago. We show that this is not the case. Methods: We redeter…
A new look at the kinematics of the bulge from an N-body model
A. Gomez, P. Di Matteo, N. Stefanovitch +4
(Abridged) By using an N-body simulation of a bulge that was formed via a bar instability mechanism, we analyse the imprints of the initial (i.e. before bar formation) location of…
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…
Reconstructing the star formation history of the Milky Way disc(s) from chemical abundances
O. Snaith, M. Haywood, P. Di Matteo +4
We develop a chemical evolution model in order to study the star formation history of the Milky Way. Our model assumes that the Milky Way is formed from a closed box-like system in…
Why the Milky Way's bulge is not only a bar formed from a cold thin disk
P. Di Matteo, A. Gomez, M. Haywood +6
By analyzing a N-body simulation of a bulge formed simply via a bar instability mechanism operating on a kinematically cold stellar disk, and by comparing the results of this analy…
The age structure of stellar populations in the solar vicinity. Clues of a two-phase formation history of the Milky Way disk
M. Haywood, P. Di Matteo, M. Lehnert +2
We analyze high quality abundances data of solar neighborhood stars and show that there are two distinct regimes of [alpha/Fe] versus age which we identify as the epochs of the thi…