9 papers
HRMOS: A High-Resolution Multi-Object Spectrograph for the VLT
Laura Magrini, Thomas Bensby, Sofia Randich +174
This White Paper presents the scientific rationale and instrument concept for HRMOS (High-Resolution Multi-Object Spectrograph), a next-generation instrument proposed for the ESO V…
Reconstructing the orbits of Milky Way dwarf galaxies: An LMC perspective
Alberto Manuel MartÃnez-GarcÃa, Andrés del Pino, Roeland P. van der Marel +14
The orbital histories of the dwarf satellites of the Milky Way (MW) are key to understanding their evolution and placing their present-day properties in a dynamical context. We pre…
Estimating the dynamical masses of dwarf galaxies in the presence of binary-star contamination
José MarÃa Arroyo-Polonio, Giuseppina Battaglia, Guillaume F. Thomas
Ultra-faint dwarf galaxies (UFDs) show extreme dynamical mass-to-light ratios of approximately 100-5000 in solar units within the half-light radius, making them critical tests for…
Carbon measurements in two ultra-faint dwarf galaxies: Grus II and Tucana IV
Valentina Verdiani, Ãsa Skúladóttir, Romain Lucchesi +7
The ultra-faint dwarf galaxies (UFDs) are some of the oldest and most metal-poor environments in the Local Group. In particular, they are predicted to host the first stars (only H…
Chemo-dynamics of the stellar component of the Sculptor dwarf galaxy II: dynamical properties and dark matter halo density
José MarÃa Arroyo Polonio, Raffaele Pascale, Giuseppina Battaglia +4
Dwarf galaxies satellite of the Milky Way are excellent laboratories for testing dark matter (DM) models and baryonic feedback implementation in simulations. The Sculptor 'classica…
The Pristine Dwarf-Galaxy survey -- VI. A VLT/FLAMES spectroscopic study of the dwarf galaxy Boötes II
Nicolas Longeard, Pascale Jablonka, Giuseppina Battaglia +4
The Milky Way has a large population of dwarf galaxy satellites. Their properties are sensitive to both cosmology and the physical processes underlying galaxy formation, but these…