Sökning: "variabla stjärnor"

Hittade 2 uppsatser innehållade orden variabla stjärnor.

1. 1. Pulsation Properties in Asymptotic Giant Branch Stars

   Kandidat-uppsats, Uppsala universitet/Teoretisk astrofysik

   Författare :Ofelia Norgren; [2019]
   Nyckelord :Astronomy; Asymptotic Giant Branch stars; Stellar Evolution; Variable Stars; Power Spectrum;

   Sammanfattning : Asymptotic Giant Branch (AGB) stars are stars with low- to intermediate mass in a late stage in their stellar evolution. An important feature of stellar evolution is the ongoing nucleosynthesis, the creation of heavier elements. LÄS MER

3. 2. Examining variable galactic nuclei with the help of astronomical databases and archives

   Kandidat-uppsats, Uppsala universitet/Teoretisk astrofysik

   Författare :Jimmy Kjellqvist; [2019]
   Nyckelord :Active Galactic Nuclei; Variable stars; Variable objects; Aktiva Galaxkärnor; Variabla stjärnor; Variabla objekt;

   Sammanfattning : There exists many astronomical objects that vary in brightness. Objects such as variable stars like the Cepheids that periodically expands and contracts their outer layers, or the active galactic nuclei (AGN) where accretion of matter into a black hole generates a often varying brightness. LÄS MER