Sökning: "vår plats i universum"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden vår plats i universum.

1. 1. Hyper-velocity stars from globular clusters hosting intermediate-mass black holes

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

   Författare :Matilda Skantz; [2023]
   Nyckelord :Hypervelocity stars; run-away stars; stellar binary; intermediate mass black hole; globular cluster; Hills mechanism; Physics and Astronomy;

   Sammanfattning : In 1988 Hills proposed that stars can gain velocities above 500 km s−1 if they are in a stellar binary which gets disrupted by a super massive black hole (SMBH). One of the stars would get trapped in an elliptical orbit around the SMBH while the other gets ejected and obtains a relatively high velocity. LÄS MER

3. 2. Rum för kontemplation i staden

   Master-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

   Författare :Frida Nilsson; Josefina Granberg; [2022]
   Nyckelord :landskapsarkitektur; kontemplation; transcendens; rum för eftertanke; Galatheas hage; Östra kyrkogården; Nordisk Djungel;

   Sammanfattning : Det tycks bli allt svårare att hitta stunder i vardagslivet där en kan stanna upp, koppla från och koppla av från alla de krav och intryck som stadens höga tempo utgör i dagens moderna samhälle. Med rådande brist på grönområden, börjar allt fler platser för stillhet och reflektion försvinna till fördel för ”multifunktionella” miljöer. LÄS MER

4. 3. N-body Simulations in Galactic Potentials

   Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

   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

5. 4. A study of the stellar populations in the Kepler field

   Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

   Författare :Mark O Reilly; [2017]
   Nyckelord :Physics and Astronomy;

   Sammanfattning : Studying the formation and evolution of galaxies is a fundamental problem in astronomy that warrants repeated investigation by astronomers. How do spiral galaxies like our own come to have its distinct spiral arms? How do stars and their properties change over time and will they continue to evolve in the same manner? To try and attempt to answer such questions we need to look to our own Galaxy the Milky Way. LÄS MER

7. 5. STUDY OF THE ELECTRON ELECTRIC DIPOLE MOMENT IN A FROGGATT NIELSEN TWO-HIGGS DOUBLET MODEL

   Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

   Författare :Johannes Sandberg; [2017]
   Nyckelord :Physics and Astronomy;

   Sammanfattning : We consider a two Higgs doublet model with a U(1) Froggatt Nielsen mechanism. The Froggatt Nielsen charges of the fermions are chosen such that the correct mass structure and quark mixing matrix is obtained, and such that Flavor Changing Neutral Currents are within experimental limits. LÄS MER