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Medientyp:
E-Book;
Hochschulschrift
Titel:
Secular evolution in galaxies
:
properties of bars and bulges as seen with integral field spectroscopy
Weitere Titel:
Übersetzung des Haupttitels: Säkulare Evolution in Galaxien: Eigenschaften von Balken und Bulges aus Sicht der integralen Feldspektroskopie
Hochschulschrift:
Dissertation, Universität Potsdam, 2020
Anmerkungen:
Beschreibung:
Galaxies are gravitationally bound systems of stars, gas, dust and - probably - dark matter. They are the building blocks of the Universe. The morphology of galaxies is diverse: some galaxies have structures such as spirals, bulges, bars, rings, lenses or inner disks, among others. The main processes that characterise galaxy evolution can be separated into fast violent events that dominated evolution at earlier times and slower processes, which constitute a phase called secular evolution, that became dominant at later times. Internal processes of secular evolution include the gradual rearrangement of matter and angular momentum, the build-up and dissolution of substructures or the feeding of supermassive black holes and their feedback. Galaxy bulges – bright central components in disc galaxies –, on one hand, are relics of galaxy formation and evolution. For instance, the presence of a classical bulge suggests a relatively violent history. In contrast, the presence of a disc-like bulge instead indicates the occurrence of secular ...