activity
20092026
most citedLow-Velocity Streams in the Solar Neighborhood Caused by the Galactic Bar

115 citations · 337 across the 9 of their papers we have counts for

collaborators

10 papers

astro-ph.GA2026

Mapping parameters of idealised hydrodynamic galaxy simulations to bar properties: a case study with the RAMSES code

Srikanth T. Nagesh, Benoit Famaey, Jonathan Freundlich +4

Cosmological simulations with high spatial resolution often struggle to reproduce the observed fraction of galactic bars across redshift and may produce bars that are too short. To…

astro-ph.GA2024★ 8 cited

A non-axisymmetric potential for the Milky Way disk

Y. R. Khalil, B. Famaey, G. Monari +9

We provide a purely dynamical global map of the non-axisymmetric structure of the Milky Way disk. For this, we exploit the information contained within the in-plane motions of disk…

astro-ph.GA2023★ 10 cited

Could very low-metallicity stars with rotation-dominated orbits have been shepherded by the bar?

Zhen Yuan, Chengdong Li, Nicolas F. Martin +11

The most metal-poor stars (e.g. [Fe/H] ) are the ancient fossils from the early assembly epoch of our Galaxy, very likely before the formation of the thick disc. Recent s…

astro-ph.GA2023★ 10 cited

Exploring the impact of a rapidly decelerating bar on transforming bulge orbits into disc-like orbits

Chengdong Li, Zhen Yuan, Giacomo Monari +7

The most metal-poor tail of the Milky Way ([Fe/H] 2.5) contains a population of stars with very prograde planar orbits, which is puzzling in both their origin and evoluti…

astro-ph.GA2018★ 104 cited

The signatures of the resonances of a large Galactic bar in local velocity space

Giacomo Monari, Benoit Famaey, Arnaud Siebert +2

The second data release of the Gaia mission has revealed a very rich structure in local velocity space. In terms of in-plane motions, this rich structure is also seen as multiple r…

astro-ph.GA2015★ 1 cited

Stellar Motion around Spiral Arms: Gaia Mock Data

D. Kawata, J. A. S. Hunt, R. J. J. Grand +3

We compare the stellar motion around a spiral arm created in two different scenarios, transient/co-rotating spiral arms and density-wave-like spiral arms. We generate Gaia mock dat…

astro-ph.GA2011★ 67 cited

Chemically tagging the Hyades stream: Does it partly originate from the Hyades cluster?

L. Pompéia, T. Masseron, B. Famaey +19

The Hyades stream has long been thought to be a dispersed vestige of the Hyades cluster. However, recent analyses of the parallax distribution, of the mass function, and of the act…

astro-ph.GA2010★ 2 cited

The catalog of radial velocity standard stars for the Gaia RVS: status and progress of the observations

L. Chemin, C. Soubiran, F. Crifo +8

A new full-sky catalog of Radial Velocity standard stars is being built for the determination of the Radial Velocity Zero Point of the RVS on board of Gaia. After a careful selecti…

astro-ph.GA2010★ 20 cited

Towards a new full-sky list of radial velocity standard stars

F. Crifo, G. Jasniewicz, C. Soubiran +4

The calibration of the Radial Velocity Spectrometer (RVS) onboard the ESA Gaia satellite (to be launched in 2012) requires a list of standard stars with a radial velocity (RV) know…

astro-ph.GA2009★ 115 cited

Low-Velocity Streams in the Solar Neighborhood Caused by the Galactic Bar

I. Minchev, C. Boily, A. Siebert +1

We find that a steady state bar induces transient features at low velocities in the solar neighborhood velocity distribution due to the initial response of the disc, following the…