Essays about: "spectral energy distribution"

Showing result 6 - 10 of 22 essays containing the words spectral energy distribution.

  1. 6. Black Holes of the First Stars

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Aron Kordt; [2022]
    Keywords : ;

    Abstract : In this report, we constrain properties of foreground objects in the Milky Way that have the potential of being confused with accretion disks of Population III stellar- mass black holes at high redshift. Following Windhorst et al. (2018), a model for multicolour accretion disks of Population III stellar-mass black holes is presented. READ MORE

  3. 7. Fermi-LAT gamma-ray and multi-wavelength SED analysis and modelling of PKS 0426-380 : A thesis analysing the behaviour and properties of the blazar PKS 0426-380

    University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Author : Nathanael Löfström; [2022]
    Keywords : active galactic nucleus; black hole; AGN; Fermi-LAT; JetSeT;

    Abstract : An analysis is made on the Flat Spectrum Radio Quasar PKS 0426-380 using two sets of data. The first set of data is the Fermi-LAT data collected over the time 54682.66 − 59317.66 in Modified Julian Date within the energy range of 100 MeV to 500 GeV. READ MORE

  4. 8. Multi-spectral X-ray imaging with a laser-plasma accelerator

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Andrea Angella; [2022]
    Keywords : Multi-spectral imaging; single-photon counting; X-ray absorption spectroscopy; XAS; LWFA; laser-wakefield acceleration; K-edge; imaging; metal-detection algorithm; Physics and Astronomy;

    Abstract : This master thesis focuses on the creation of an algorithm to perform multispectral imaging of a metallic target using X-rays. The generation of an ultrashort high-power low-divergent X-ray beam is performed by means of a Ti:Sapphire laser driven wake-field plasma accelerator. READ MORE

  5. 9. A study of the gamma-ray emission from the blazar S50716+71 using the Fermi-LAT telescope

    University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Author : Fredrik Vislander; [2022]
    Keywords : AGN; active galactic nuclei; Fermi-LAT; astrophysics; gamma-rays; synchrotron self-Compton; SSC; S50716 71.;

    Abstract : This thesis sums up a bachelor project in which gamma-ray emission from an extra-galactic source (S50716+71) is studied using data collected by the Fermi Large Area Telescope (LAT). The emission consists of 12,5 years of data (April 2008 to February 2020) in the energy range 100 MeV - 300 GeV. READ MORE

  6. 10. Climate Simulations of an Exoplanet with a Slab Ocean: A 3D Model Intercomparison of various GCMs

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Moa Biserud; [2022]
    Keywords : Climate simulations; GCM; ROCKE-3D; Exoplanet; Slab Ocean; Qflux=0;

    Abstract : Three-dimensional (3D) planetary general circulation models (GCMs) have been derived from global climate models used to project 21st century changes in Earth's climate. GCMs are used to address questions regarding the climate-and habitability aspects of terrestrial planets within the solar system and assess the habitability of planets outside of the solar system, so called exoplanets. READ MORE