An international team of astronomers has identified two new tidal streams in the Andromeda Galaxy, the remnants of dwarf galaxies consumed by our large galactic neighbor. Analysis of the stars in ...

In general, tidal stellar streams represent the remnants of ancient accretion events into a galaxy. Therefore, they could keep the memory of their progenitors' chemical and dynamical information, even ...

Tidal tails are thin, elongated regions of stars and interstellar gas extending into space. They are formed as a result of gravitational interactions between galaxies and star clusters. The ...