Essays about: "Aktiva Galaxkärnor"

Found 2 essays containing the words Aktiva Galaxkärnor.

1. 1. Simulating and Testing the Polarimetric Response of the X-ray Polarimetry Telescope XL-Calibur

   University essay from KTH/Fysik

   Author : Filip af Malmborg; [2022]
   Keywords : Astroparticle Physics; Astrophysics; Detector Physics; Simulation; Theoretical Physics; Engineering Physics; Astropartikelfysik; Astropartikelfysik; Detektorfysik; Simulering; Teoretisk Fysik; Teknisk Fysik;

   Abstract : X-ray polarimetry, the study of the polarisation of X-ray light, is a powerful and rapidly developing tool for astrophysics, which promises to help answer outstanding questions about the physics of extreme objects such as pulsars, X-ray binaries and active galactic nuclei. The balloon-borne telescope XL-Calibur will be the first instrument to study the polarisation of hard X-rays (with energies between 10 and 100 keV) in detail, correlating with the soft X-ray observations of IXPE to provide further tests of polarisation-dependent x-ray emission models in extreme objects. READ MORE

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

   University essay from Uppsala universitet/Teoretisk astrofysik

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

   Abstract : 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. READ MORE