Sökning: "Stjärnor"

Visar resultat 1 - 5 av 86 uppsatser innehållade ordet Stjärnor.

  1. 1. N-body Simulations in Galactic Potentials

    Kandidat-uppsats, Lunds universitet/Astronomi

    Författare :David Andersson; [2019]
    Nyckelord :N-body; simulation; spen clusters; dissolving time; Hyades; members of the Hyades; double integration; Physics and Astronomy;

    Sammanfattning : What effect does a collision between two clusters have on their dissolving time? In order to answer this question, a new type of N-body simulation using a double integration of a cluster was built. Instead of introducing a perturbation representing the gravitational force of the Milky Way into a local simulation of the cluster, the cluster orbit was integrated in the potential of the Milky Way, and in each of these integration steps the local motion of the stars inside the cluster were integrated, using an N-body calculation. LÄS MER

  2. 2. Fast Simulations of Star Cluster Evolution

    Kandidat-uppsats, Lunds universitet/Astronomi

    Författare :Lina Warntoft; [2019]
    Nyckelord :star cluster simulation numerical method; Physics and Astronomy;

    Sammanfattning : The evolution of globular star clusters tells the history of the formation of galaxies, how stellar streams might have formed and how the future of the Universe might look like. Although the general theoretical background of the evolution is well understood, it is difficult to conduct accurate and realistic computer simulations of objects containing thousands of interacting bodies. LÄS MER

  3. 3. Can tidal interactions produce MGC1?

    Master-uppsats, Lunds universitet/Astronomi; Lunds universitet/Institutionen för astronomi och teoretisk fysik

    Författare :Eric Andersson; [2018]
    Nyckelord :globular cluster; MGC1; Andromeda; M31; galaxy; dwarf galaxy; tidal interactions; Physics and Astronomy;

    Sammanfattning : The globular cluster population of large spiral galaxies can be divided into two populations: one population which formed in-situ and one which has been assembled through capture of clusters that have been tidally stripped away from other galaxies during close encounters or mergers. In this work, I focus on the globular cluster MGC1, which is orbiting the M31 galaxy. LÄS MER

  4. 4. Är det rimligt att dikta om stjärnor när hela ozonskiktet är trasigt? : En ekokritisk analys av Mare Kandres I ett annat land

    Kandidat-uppsats, Uppsala universitet/Litteraturvetenskapliga institutionen

    Författare :Alexandra Spendler; [2018]
    Nyckelord :Ekokritik; Mare Kandre;

    Sammanfattning : .... LÄS MER

  5. 5. The first supernovae and the mass distribution of Population III stars

    Kandidat-uppsats, Lunds universitet/Astronomi

    Författare :Martin Mikitas; [2018]
    Nyckelord :Astronomy; Supernovae; STARFIT; Salpeter; IMF; Physics and Astronomy;

    Sammanfattning : The properties of the early Milky Way are quite mysterious and some are completely unknown even today. This study is the first one ever to analyze the mass distribution of Population III bulge stars. LÄS MER