4 papers
Structural Diversity Among the Milky Way's Dwarf Spheroidal Satellites
Matthew G. Walker, Raphaël Errani, Andrew B. Pace +3
We fit a flexible double power-law (`') model to the stellar density fields observed for the Milky Way's known dwarf spheroidal satellite galaxies. We show that where stand…
A dynamical attractor in the evolution of dwarf spheroidal galaxies
Jorge Peñarrubia, Ethan O. Nadler
We use controlled -body experiments to study the dynamical evolution of dwarf spheroidal galaxies (dSphs) embedded in dark-matter (DM) haloes containing a large population of da…
Constraining Dark Matter Density Profiles in UFDs with Wide Binaries: Forecast for the Chinese Space Station Survey Telescope
Yixi Tao, Haijun Tian, Bin Yue +1
The internal structure of dark matter halos on sub-galactic scales remains a key open question, particularly in the context of the core-cusp problem. Ultra-faint dwarf galaxies (UF…
Collisional Dynamics of Stars and Dark Matter in Ultra-Faint Galaxies
Raphaël Errani, Raphaël Errani, Nicolas Esser +3
We use controlled N-body simulations to study the collisional exchange of energy between stars and dark matter in ultra-faint galaxies. We find that dynamical friction between star…