100 citations · 509 across the 17 of their papers we have counts for
7 papers · 1 filter
The accretion history of the Milky Way IV. Hints of recent star formation in Milky Way dwarf spheroidal galaxies
Yanbin Yang, Elisabetta Caffau, Piercarlo Bonifacio +3
Dwarf spheroidal galaxies are known to be dominated by old stellar populations. This has led to the assumption that their gas-rich progenitors lost their gas during their infall in…
Gaia EDR3 proper motions, energies, angular momenta of Milky Way dwarf galaxies: a recent infall to the Milky Way halo
Yang Y., Hammer F., Li H. +7
Gaia EDR3 has provided proper motions of Milky Way (MW) dwarf galaxies with an unprecedented accuracy, which allows us to investigate their orbital properties. We found that the to…
Kinematical asymmetry in the dwarf irregular galaxy WLM and a perturbed halo potential
M. Khademi, Y. Yang, F. Hammer +1
WLM is a dwarf irregular that is seen almost edge-on that has prompted a number of kinematical studies investigating its rotation curve and its dark matter content. In this paper,…
Lyman continuum leakage in faint star-forming galaxies at redshift z=3-3.5 probed by gamma-ray bursts
J. -B. Vielfaure, S. D. Vergani, J. Japelj +23
We present the observations of Lyman continuum (LyC) emission in the afterglow spectra of GRB 191004B at , together with those of the other two previously known LyC-emitt…
X-Shooter GTO: evidence for a population of extremely metal-poor, alpha-poor stars
E. Caffau, P. Bonifacio, P. Francois +12
The extremely metal-poor stars are the direct descendants of the first generation stars. They carry the chemical signature of the pristine Universe at the time they formed, shortly…
Does the dwarf galaxy system of the Milky Way originate from Andromeda?
Sylvain Fouquet, François Hammer, Yanbin Yang +2
The Local Group is often seen to be a quiescent environment without significant merger events. However an ancient major merger may have occurred in the most massive galaxy. Numeric…
Could the Magellanic Clouds be tidal dwarves expelled from a past-merger event occurring in Andromeda?
Yanbin YANG, Francois HAMMER
The Magellanic Clouds are often considered as outliers in the satellite system of the Milky Way because they are irregular and gas-rich galaxies. From their large relative motion,…