Search for dissertations about: "High-redshift"

Showing result 1 - 5 of 22 swedish dissertations containing the word High-redshift.

  1. 1. The environment of high-redshift AGN

    Author : Judit Fogasy; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In order to understand the formation and evolution of local massive galaxies and to reveal the processes that engineered the tight correlations found between their supermassive black hole (SMBH) mass and bulge mass or velocity dispersion, the study of powerful, high-redshift active galactic nuclei (AGN) and their environment is crucial. Observations of high-z quasars and radio galaxies suggest that these AGN live in overdense environment surrounding by star-forming Ly&alpha-emitters and submillimeter galaxies. READ MORE

  2. 2. High-redshift active galactic nuclei and their environment

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Judit Fogasy; [2020]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; galaxies: evolution -- galaxies: high-redshift -- galaxies: active -- galaxies: Starburst -- -- Submillimeter: galaxies;

    Abstract : In order to understand the formation and evolution of local massive galaxies and to reveal the processes that engineered the tight correlations found between their supermassive black hole (SMBH) mass and bulge mass or velocity dispersion, the study of powerful, high-redshift active galactic nuclei (AGNs) and their environment is crucial. AGNs are luminous targets providing important clues to galaxy evolution, as their central SMBH is growing at high rates, which opens the opportunity to unfold how the growth of the black hole influences the growth of its host galaxy. READ MORE

  3. 3. Quasar host galaxies at intermediate and high redshifts

    University dissertation from Uppsala : Uppsala Astronomiska Observatorium

    Author : Eva Örndahl; Bengt Gustafsson; Jari Kotilainen; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astronomy; Active galaxies; Quasars; Host galaxies; Imaging; Photometry; Magnitudes; Colours; Morphology; Statistical methods; High-redshift; Infrared; Astronomi; NATURAL SCIENCES Physics Astronomy and astrophysics; NATURVETENSKAP Fysik Astronomi och astrofysik; Theoretical Astrophysics; teoretisk astrofysik;

    Abstract : Quasars form one of the most energetic phenomena in the universe, and can be traced out to very large redshifts. By studying the galaxies which host the active nuclei, important insights can be gained into the processes that trigger and maintain the quasar powerhouse. READ MORE

  4. 4. Supernovae and clusters of galaxies as probes for the high redshift universe

    University dissertation from Stockholm : Stockholm University

    Author : Tomas Dahlén; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Supernovor; Galaxhopar;

    Abstract : .... READ MORE

  5. 5. Stacking of interferometric data at sub-millimeter and radio wavelengths

    University dissertation from Stockholm : Stockholm University

    Author : Lukas Lindroos; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; techniques: interferometric; methods: data analysis; sub-millimetre: galaxies; galaxies: high- redshift; radio continuum: galaxies;

    Abstract : Understanding the procceses of galaxy evolution require observational constraints on the physical properties of galaxies at different times in the history of the Universe. Large and deep surveys at visible and near-infrared wavelengths have, during the past decade, been used to produce extensive catalogues of high-redshift galaxies, spanning a large range of the history of the Universe. READ MORE