Eight gigayears of galaxy mergers

• Verfasst von: Robaina Rapisarda, Aday
• Titel: Eight gigayears of galaxy mergers
• Verf.angabe: Aday Robaina Rapisarda
• Jahr: 2010
• Umfang: Online-Ressource
• Fussnoten: Online publiziert: 2010
• Angaben zum Titel: Übers. des Hauptsacht.: Acht Milliarden Jahre Galaxienverschmelzungen
• Hochschulschrift: Heidelberg, Univ., Diss., 2010
• URN: urn:nbn:de:bsz:16-opus-106888
• Schlagwörter: (s)Galaxie / (s)Entstehung
• Datenträger: Online-Ressource
• Dokumenttyp: Hochschulschrift
• Sprache: eng
• Reproduktion: Druckausg.: Robaina Rapisarda, Aday: Eight gigayears of galaxy mergers200920092009. - IX, 103 S
• K10plus-PPN: 62774205X
• K10plus-PPN:
  Universitätsbibliothek
• Lokale URL UB: Zum Volltext

Abstract

Galaxy interactions are expected to play a crucial role in the build--up of stellar mass in any cold dark matter cosmology. Of particular interest are the mergers between systems of a comparable mass, as they are predicted to be one of the main modes of galaxy growth and have a crucial impact in the shaping of galaxy morphologies and dynamics. In this thesis I study two key aspects of the role that mergers play in galaxy evolution: a) What is the contribution of major galaxy interactions to the star formation history of the Universe at z < 1?, and b) How important are galaxy interactions for the build--up of the massive end of the red sequence? To answer the first question I use photometric redshifts, stellar masses and UV star formation rates from COMBO-17, 24 microns star formation rates from Spitzer and galaxy morphologies from two deep Hubble Space Telescope cosmological survey fields to study the enhancement in star formation activity as a function of galaxy separation ...