6 papers
Unravelling stellar populations in the Andromeda Galaxy
Grzegorz Gajda, Ortwin Gerhard, Matías Blaña +4
To understand the history and formation mechanisms of galaxies it is crucial to determine their current multidimensional structure. Here we focus on stellar population properties,…
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…
Tidally induced bars in dwarf galaxies on different orbits around a Milky Way-like host
Grzegorz Gajda, Ewa L. Lokas, E. Athanassoula
Bars in galaxies may develop through a global instability or due to an interaction with another system. We study bar formation in disky dwarf galaxies orbiting a Milky Way-like gal…
The orbital structure of a tidally induced bar
Grzegorz Gajda, Ewa L. Lokas, E. Athanassoula
Orbits are the key building blocks of any density distribution and their study helps us understand the kinematical structure and the evolution of galaxies. Here we investigate orbi…
Tidally induced bars of galaxies in clusters
Ewa L. Lokas, Ivana Ebrova, Andres del Pino +5
Using N-body simulations we study the formation and evolution of tidally induced bars in disky galaxies in clusters. Our progenitor is a massive, late-type galaxy similar to the Mi…
Spectral analysis of stellar orbits in a tidally induced bar
Grzegorz Gajda, Ewa L. Lokas, E. Athanassoula
Using numerical analysis of fundamental frequencies we study the orbital structure of a tidally induced bar formed in a simulated dwarf galaxy orbiting a Milky Way-like host. We fi…