Sökning: "stellar evolution"

Visar resultat 16 - 20 av 72 uppsatser innehållade orden stellar evolution.

  1. 16. Brightest Cluster Galaxies in the Local Universe: Mergers, Interactions and the Implications for Galaxy Evolution

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Diane Delley; [2022]
    Nyckelord :Brightest Cluster Gallaxies; BCG; Cosmology; Clusters of Galaxies; Merger; Interaction;

    Sammanfattning : Clusters of Galaxies are amongst the largest gravitationally bound structures in our Universe and consist of thousands of galaxies. It is in these gigantic systems where Brightest Cluster Galaxies (BCGs) are found, the most massive galaxies in our Universe. A BCG, as its name indicates, is the brightest galaxy in a cluster. LÄS MER

  3. 17. The Rotational Centre of the Large Magellanic Cloud

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Alma Bergström; [2022]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The Large and Small Magellanic Clouds (LMC & SMC) are the two largest galaxies orbiting the Milky Way (MW). The interactions between them have affected the evolution of both galaxies. The interactions have affected the galaxies differently depending on how strong they have been. LÄS MER

  4. 18. Spectroscopic model characterisation of hot exoplanet atmospheres

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Fysiska institutionen

    Författare :Elin Sandvik; [2022]
    Nyckelord :Transit method; Transmission spectroscopy; Exoplanets; Hot Jupiter; Modelling; Physics and Astronomy;

    Sammanfattning : Hot Jupiters are gas giants under intense stellar radiation with short orbital periods of only a few days. Due to their large radii, hot temperatures, and large scale heights, hot Jupiters can be observationally characterised in detail through spectroscopy over an entire orbital phase. LÄS MER

  5. 19. Stellar Encounters at the Galactic Centre

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Roberts Fisers; [2022]
    Nyckelord :Galaxy; encounter; SPH; NSC; Physics and Astronomy;

    Sammanfattning : Using methods of smoothed particle hydrodynamics (SPH) an N -body simulation was set-up to investigate stellar encounters between a 1 solar-mass main sequence (MS) star, modeled after the Sun, and a 0.6 solar-mass white dwarf (WD). This was done primarily to investigate the assumptions made by Mastrobuono-Battisti et al. LÄS MER

  7. 20. Escaping Compact Object Binaries from Globular Clusters

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Annie Csomor; [2022]
    Nyckelord :Compact object binaries; binary black holes; BH-NS binaries; escaping binaries; globular clusters; escaping compact object binaries from globular clusters; escaping compact binaries; Physics and Astronomy;

    Sammanfattning : Since 2015, the LIGO-Virgo-KAGRA scientific collaboration (LVK) has detected gravitational waves from more than 90 merging compact object binaries using ground-based interferometric detectors. Compact objects orbiting in binary systems emit gravitational waves leading to a loss of energy. LÄS MER