180 citations · 830 across the 31 of their papers we have counts for
4 papers · 1 filter
Dark matter halo cores and the tidal survival of Milky Way satellites
Raphaël Errani, Julio F. Navarro, Jorge Peñarrubia +2
The cuspy central density profiles of cold dark matter (CDM) haloes make them highly resilient to disruption by tides. Self-interactions between dark matter particles, or the cycli…
Revisiting a disky origin for the faint branch of the Sagittarius stellar stream
Pierre-Antoine Oria, Rodrigo Ibata, Pau Ramos +2
We investigate ways to produce the bifurcation observed in the stellar stream of the Sagittarius dwarf galaxy (Sgr). Our method consists in running -body simulations of Sgr fall…
The Pristine survey XVIII: C-19: Tidal debris of a dark matter-dominated globular cluster?
Raphaël Errani, Julio F. Navarro, Rodrigo Ibata +12
The recently discovered C-19 stellar stream is a collection of kinematically associated metal-poor stars in the halo of the Milky Way lacking an obvious progenitor. The stream span…
The Pristine survey -- XVII. The C-19 stream is dynamically hot and more extended than previously thought
Zhen Yuan, Nicolas F. Martin, Rodrigo A. Ibata +22
The C-19 stream is the most metal poor stellar system ever discovered, with a mean metallicity . Its low metallicity dispersion ( 0.18 at…