Essays about: "blixtar"

Showing result 1 - 5 of 11 essays containing the word blixtar.

  1. 1. Fitting a photospheric prompt emission model to GRB data: The Kompaneets RMS approximation (KRA)

    University essay from KTH/Fysik

    Author : Oscar Wistemar; [2023]
    Keywords : Gamma-Ray Bursts; Astrophysics; Engineering Physics; Gamma-Blixtar; Astrofysik; Teknisk Fysik;

    Abstract : Gamma-ray bursts (GRBs) are some of the most energetic events in the universe. Shocks occurring below the photosphere are likely radiation mediated shocks (RMSs) and are suspected to shape the spectra. Due to computational costs of simulating RMSs, models had not been fitted to data and a faster model was needed. READ MORE

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

    University essay from KTH/Fysik

    Author : Henric Hintze; [2022]
    Keywords : 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;

    Abstract : 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. READ MORE

  4. 3. Generating lightning bolt videos perceived as real in images using machine learning

    University essay from Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Author : Henrik Johansson; [2022]
    Keywords : Animated Lightning; Machine learning; Video prediction; image-to-video; Animerade blixtar; maskininlärning; video förutsägelse; bild-till-video;

    Abstract : Background. Weather and weather effects are important features when trying to immerse the viewer into a virtual world. Lightning and thunder is one of those effects when attempting to create rough weather, realistic lightning however requires heavy computations, using physics, weather systems, and knowledge of the 3d world. Objectives. READ MORE

  5. 4. Estimating the Risk of Self-Initiated Upward Lightning to Onshore Wind Turbines and Towers

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Frida Thörn; Wilhelm Sjöstedt; [2020]
    Keywords : Lightning; upward lightning; self-initiated light-ning; wind turbines; modelling;

    Abstract : Field observations has shown that wind turbinesare especially exposed to lightning strikes. The probability forlightning strikes to offshore wind turbines has been analysed ina previous article. In this project the probability for upwardself-initiated lightning strikes to onshore wind turbines anda lightning protection tower was analysed. READ MORE

  6. 5. Constraining double neutron star binary evolution from the spatial distribution of short gamma-ray bursts

    University essay from Lunds universitet/Astronomi - Genomgår omorganisation

    Author : Oscar Andersson; [2019]
    Keywords : Physics and Astronomy;

    Abstract : Short gamma-ray bursts are often observed at large spatial offsets from their host galaxies. Neutron star mergers in double neutron star binaries have also recently been confirmed as a progenitor of short gamma-ray bursts (Abbott et al. 2017). READ MORE