Signatures of quenching in dwarf galaxies in local galaxy clusters

no code implementations • 26 Jan 2021 • Joachim Janz, Heikki Salo, Alan H. Su, Aku Venhola

These two results are compatible with a transformation scenario.

Astrophysics of Galaxies

The Fornax Deep Survey (FDS) with the VST XI. The search for signs of preprocessing between the Fornax main cluster and Fornax A group

no code implementations • 14 Jan 2021 • Alan H. Su, Heikki Salo, Joachim Janz, Eija Laurikainen, Aku Venhola, Reynier F. Peletier, Enrica Iodice, Michael Hilker, Michele Cantiello, Nicola Napolitano, Marilena Spavone, Maria A. Raj, Glenn van de Ven, Steffen. Mieske, Maurizio Paolillo, Massimo Capaccioli, Edwin A. Valentijn, Aaron E. Watkins

Overall, we find significant differences in the distributions of quantities derived from S\'ersic profiles ($g'-r'$, $r'-i'$, $R_e$, and $\bar{\mu}_{e, r'}$), and non-parametric indices ($A$ and $S$) between the Fornax main cluster and Fornax A group.

Astrophysics of Galaxies

The kinematics of local thick discs do not support an accretion origin

no code implementations • 29 Jan 2019 • Sébastien Comerón, Heikki Salo, Johan H. Knapen, Reynier F. Peletier

Literature numerical studies of dynamical friction allow us to estimate that at the current cosmic time about one in six mergers for which the stars of the accreted galaxy ended in a thick disc were retrograde.

Astrophysics of Galaxies