Sökning: "the dark ages"

Visar resultat 1 - 5 av 34 uppsatser innehållade orden the dark ages.

  1. 1. Probing the Structure of Ionised ISM in Lyman-Continuum-Leaking Green Pea Galaxies with MUSE

    Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Chinmaya Nagar; [2023]
    Nyckelord :Emission-line ratio; Gaussian convolution; Green pea galaxies; ISM; Ionised ISM; Lyman continuum LyC ; Low-Redshift Lyman Continuum Survey LzLCS ; Lyman continuum emitter LCE ; LyC escape; LyC escape fraction; MUSE; MPDAF; Voronoi binning;

    Sammanfattning : Lyman continuum (LyC) photons are known to be responsible for reionising the universe after the end of the Dark Ages, which marked a period called the Epoch of Reionisation (EoR). While these high-energy photons are thought to predominantly originate from young, hot, massive stars within the earliest galaxies, and contributions from high-energy sources like quasars and AGN, the origins of these photons are yet not well known and highly debated. LÄS MER

  3. 2. Mångfaldens omslag : En innehållsanalys av kulturell mångfald i bilderböcker på svenska riktade mot barn mellan 0-6 år.

    Kandidat-uppsats, Karlstads universitet/Institutionen för geografi, medier och kommunikation (from 2013)

    Författare :Mina Djalali Dehghani; Emilia Lassfolk; [2023]
    Nyckelord :Cultural diversity; Picture book; Children s book; Representation; Identity; Kulturell mångfald; Bilderbok; Barnbok; Representation; Identitet;

    Sammanfattning : Syftet med studien var att undersöka kulturell mångfald i bilderböcker på svenska som är riktade mot barn mellan 0-6 år. Projektet skulle bidra med ytterligare kunskap om representationer av kulturell mångfald i barnlitteraturen. LÄS MER

  4. 3. När mörkret faller: En studie om belysningens betydelse i Umeås stadsmiljö ur ett trygghetsperspektiv

    Kandidat-uppsats, Umeå universitet/Institutionen för geografi

    Författare :Fanny Öhlund; [2023]
    Nyckelord :darkness; lightning; safety; young adults; public enviroment;

    Sammanfattning : Many people may feel insecure if a place or an area have poor lightning. When darkness falls, it is a natural reaction to become cautious as control over seeing one's surroundings deteriorates. People are very dependent on lighting in urban environments. LÄS MER

  5. 4. Can Dwarf Galaxies Tell Us How the Milky Way Formed?

    Master-uppsats, Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Författare :Þóra Karlsdóttir; [2023]
    Nyckelord :Dwarf Galaxy; Milky Way; Physics and Astronomy;

    Sammanfattning : Dwarf galaxies are a key component in understanding the evolution of galaxies and provide tests on the standard cosmological $\Lambda$ Cold Dark Matter model. According to the formation hierarchy, dwarf galaxies are the pieces that create all galaxies. Our current understanding of dwarf galaxies faces discrepancies between theory and observations. LÄS MER

  7. 5. Starbursts at Cosmic Dawn : Formation of Globular Clusters, Ultra-Faint Dwarfs, and Population III star clusters at z > 6

    Master-uppsats, Stockholms universitet/Institutionen för astronomi

    Författare :Olof Nebrin; [2022]
    Nyckelord :Cosmology; Galaxy Formation; Globular Clusters; First Stars; Dark Matter; Cosmic Dawn; Reionization; Ultra-Faint Dwarfs;

    Sammanfattning : In the standard model of cosmology (ΛCDM) the first stars, star clusters, and galaxies are expected to have formed in short bursts of star formation in low-mass dark matter halos at high redshifts (). Up to this point, attempts to predict the properties and abundances of these luminous objects have made use of numerically expensive cosmological simulations. LÄS MER