Sökning: "CDM-model"

Hittade 4 uppsatser innehållade ordet CDM-model.

  1. 1. Thawing, Scaling and Tracking QUintessence in a Phase Space Perspective : and comparisons to the ΛCDM model

    Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Arvid Ryberg; [2022]
    Nyckelord :Quintessence; Cosmology; Dark Energy; Astro physics;

    Sammanfattning : This thesis aims to give an introduction to quintessence models as well ascomparing those models with the currently accepted ΛCDM model. We willconsider quintessence in a spatially flat and isotropic Universe and useregular dynamical systems on a bounded three dimensional phase spacewhere we perform numerical calculations. LÄS MER

  3. 2. A Tension between the Early and Late Universe: Could Our Underdense Cosmic Neighbourhood Provide an Explanation?

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

    Författare :Sveva Castello; [2021]
    Nyckelord :Cosmology; Hubble tension; local void;

    Sammanfattning : In recent years, the increasingly precise constraints on the value of the Hubble constant, H0, have highlighted a discrepancy between the results arising from early-time and late-time measurements. A potential solution to this so-called Hubble tension is the hypothesis that we reside in a cosmic void, i.e. LÄS MER

  4. 3. Firm innovation and productivity : A regional analysis

    Master-uppsats, Södertörns högskola/Nationalekonomi

    Författare :Sandra Bladh; [2017]
    Nyckelord :Innovation; regional economics; CDM-model; panel data; CIS;

    Sammanfattning : This thesis studies the effect of innovation activities and productivity by using the CDM-model and extend the existing knowledge by using the CIS-dataset in combination with official statistics performing a such detailed regional analysis that have not been done before. By using the different labour market codes interacted with the industry codes I can capture informative deviations between different industries in different regions. LÄS MER

  5. 4. Cosmic Dawn in a Fuzzy Universe : Constraining the nature of Dark Matterwith 21 cm Cosmology

    Kandidat-uppsats, Stockholms universitet/Institutionen för astronomi

    Författare :Olof Nebrin; [2017]
    Nyckelord :;

    Sammanfattning : The cold dark matter (CDM) paradigm underlying the standard CDM model of cosmology is successful on large scales but faces potential problems on small scales partly related to a seeming overproduction of dwarf galaxies. This could be alleviated in exotic dark matter models that suppresses small-scale structure formation. LÄS MER