Sökning: "galaxies: interstellar medium"

Visar resultat 1 - 5 av 18 avhandlingar innehållade orden galaxies: interstellar medium.

  1. 1. Star-forming Dwarf Galaxies Internal motions and evolution

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Thomas Marquart; Uppsala universitet.; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Galaxy; Galaxies; Dynamics; Kinematics; Starburst; Dwarf Galaxies; Blue Compact Galaxies; Star Formation; Galaxy mergers; 3D-Spectroscopy; Spectroscopy; Astronomy; Astronomi;

    Sammanfattning : The study of dwarf galaxies is important in order to better understand the physics of the young universe and how larger galaxies form and evolve. In this work we focus on Blue Compact Galaxies (BCGs) which havemuch enhanced star formation (starbursts), causing blue colours and strong emission line spectra. LÄS MER

  2. 2. Observations of molecules in luminous infrared galaxies

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Francesco Costagliola; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Interstellar medium; Galaxies; Radio astronomy; Astrochemistry;

    Sammanfattning : .... LÄS MER

  3. 3. Ionized and atomic interstellar medium in star-forming galaxies

    Detta är en avhandling från Stockholm : Department of Astronomy, Stockholm University

    Författare :Thøger Emil Rivera-Thorsen; Stockholms universitet.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Astronomy; astronomi;

    Sammanfattning : Star forming galaxies in the local Universe are an important laboratory for learning about conditions in the distant, early Universe. With a high frequency of interactions and mergers, strong star formation activity, and complex kinematics and often disturbed or irregular morphology, these galaxies are believed to be the best local analogs to the galaxies at early times, and can therefore help understand the galaxies we observe at high redshifts in the early Universe. LÄS MER

  4. 4. Young Star Clusters and Clumps in the Local Universe The effect of galactic environment on star formation

    Detta är en avhandling från Stockholm : Department of Astronomy, Stockholm University

    Författare :Matteo Messa; Stockholms universitet.; [2019]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Galaxies; Star formation; Star clusters; Astronomy; astronomi;

    Sammanfattning : Stars do not form in isolation, but rather out of a hierarchical structure set by the turbulence of the interstellar medium. At the densest peak of the gas distribution, the star formation process can produce young star clusters (YSCs), which are gravitationally bound systems of stars with mass between ~100 and 106 MSun and typical size of few parsecs. LÄS MER

  5. 5. How ISM properties drive Lyman Continuum Escape

    Detta är en avhandling från Stockholm : Johannes Puschnig

    Författare :Johannes Puschnig; Stockholms universitet.; Stockholms universitet.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Astrophysics; Cosmology; Extragalactics; Reionization; Lyman Continuum; Interstellar Medium; ISM; Tololo 1247-232; Astronomy; astronomi;

    Sammanfattning : The thesis introduces physical processes that are at work in astrophysical plasmas and reviews the current state of research related to the emission of ionizing photons, i.e. Lyman continuum (LyC). Star forming galaxies and active galactic nuclei are discussed as sources of LyC. LÄS MER