34 citations · 84 across the 4 of their papers we have counts for
9 papers · 1 filter
Revealing the Structure and Internal Rotation of the Sagittarius Dwarf Spheroidal Galaxy with Gaia and Machine Learning
Andrés del Pino, Mark A. Fardal, Roeland P. van der Marel +3
We present a detailed study of the internal structure and kinematics of the core of the Sagittarius dwarf spheroidal galaxy (Sgr). Using machine-learning techniques, we have combin…
Dark matter distribution and dynamics of dwarf spheroidal galaxies
Ewa L. Lokas
I review the current status of dynamical modelling of dwarf spheroidal galaxies focusing on estimates of their dark matter content. Starting with the simplest methods using the vel…
Anatomy of a buckling galactic bar
Ewa L. Lokas
Using -body simulations we study the buckling instability in a galactic bar forming in a Milky Way-like galaxy. The galaxy is initially composed of an axisymmetric, exponential…
Buckling instability in tidally induced galactic bars
Ewa L. Lokas
Strong galactic bars produced in simulations tend to undergo a period of buckling instability that weakens and thickens them and forms a boxy/peanut structure in their central part…
The major merger origin of the Andromeda II kinematics
Ivana Ebrová, Ewa L. Łokas, Sylvain Fouquet +1
Prolate rotation (i.e. rotation around the long axis) has been reported for two Local Group dwarf galaxies: Andromeda II, a dwarf spheroidal satellite of M31, and Phoenix, a transi…
Tidally induced bars in gas-rich dwarf galaxies orbiting the Milky Way
Grzegorz Gajda, Ewa L. Łokas, E. Athanassoula
Bars in galaxies may form not only through instability, but also as a result of an interaction with another galaxy. In particular, they may appear in disky dwarf galaxies interacti…