Sökning: "ljuskurvor"

Hittade 4 uppsatser innehållade ordet ljuskurvor.

  1. 1. Search for transiting exoplanets in globular clusters

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

    Författare :Oskar Nilsson; [2023]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : This project consists of a transit search in the Messier 3 Globular cluster with the goal to assess the difficulties of observing planetary transits in globular clusters. M3 was observed for a short period of time and by performing PSF fitting, flux measurements could be done to extract light curves of the 290 stars that are included in this project. LÄS MER

  3. 2. Single-peaked gamma-ray bursts in the Fermi GBM catalogue

    Master-uppsats, KTH/Fysik

    Författare :Henric Hintze; [2022]
    Nyckelord :astroparticle physics; GBR; gamma-ray burst; single-peaked; single peaked; shock breakout; Fermi; GBM; gamma-ray burst monitor; light curve; low-luminosity; low luminosity; closure relation; astropartikelfysik; GBR; gammablixt; singelpeakad; shockbreakout; Fermi; GBM; gammablixtmonitor; ljuskurva; ljuskurvor; lågluminositets;

    Sammanfattning : Gamma-ray burst light curves are notoriously irregular, yet a significant number consists of a single fast-rising, exponentially decaying pulse. These are called single-peaked light curves. LÄS MER

  4. 3. 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

  5. 4. 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