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Satellites of Milky Way- and M31-like galaxies with TNG50: quenched fractions, gas content, and star formation histories
Christoph Engler, Annalisa Pillepich, Gandhali D. Joshi +3
We analyse the quenched fractions, gas content, and star formation histories of ~1200 satellite galaxies with around 198 Milky Way- (MW) and…
On the accretion of a new group of galaxies onto Virgo: II. The effect of pre-processing on the stellar population content of dEs
Bahar Bidaran, Francesco La Barbera, Anna Pasquali +7
Using MUSE spectra, we investigate how pre-processing and accretion onto a galaxy cluster affect the integrated stellar population properties of dwarf early-type galaxies (dEs). We…
Milky Way archaeology using RR Lyrae and type II Cepheids II. High velocity RR Lyrae stars, and mass of the Milky Way
Z. Prudil, A. J Koch-Hansen, B. Lemasle +10
We report the discovery of high velocity candidates among RR~Lyrae stars found in the Milky Way halo. We identified 9 RR~Lyrae stars with Galactocentric velocities exceeding the lo…
Photometric [Fe/H] of RRab stars in the and bands by deep learning
István Dékány, Eva K. Grebel
RR Lyrae stars are useful chemical tracers thanks to the empirical relationship between their heavy-element abundance and the shape of their light curves. However, the consistent a…
Brought to Light III: Colors of Disk and Clump Substructures in Dwarf Early-Type Galaxies of the Fornax Cluster
Josefina Michea, Anna Pasquali, Rory Smith +3
It has been well established that dwarf early-type galaxies (ETGs) can often exhibit a complex morphology, whereby faint spiral arms, bars, edge-on disks or clumps are embedded in…