3 papers
astro-ph.GA2025
First large scale spatial and velocity patterns of local metal-rich stars in the Milky Way
Georges Kordopatis, Diane Feuillet, Christian Lehmann +4
(Abridged) The present-day spatial and kinematic distribution of stars in the Milky Way provides key constraints on its internal dynamics and evolutionary history. We select stars…
astro-ph.SR2024
Chemodynamic evolution of Sun-like stars in nearby moving groups
Christian Lehmann, Michael T. Murphy, Fan Liu +1
Sun-like stars are well represented in the solar neighbourhood but are currently under-utilised, with many studies of chemical and kinematic evolution focusing on red giants (which…
astro-ph.GA2024
Probing the strength of radial migration via churning by using metal-rich red giant stars from APOGEE
Christian Lehmann, Sofia Feltzing, Diane Feuillet +1
Making use of the APOGEE DR17 catalogue with high quality data for 143,509 red giant branch stars we explore the strength of different mechanisms that causes a star to radially mig…