Essays about: "Active galactic nucleus"

Showing result 1 - 5 of 12 essays containing the words Active galactic nucleus.

1. 1. 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

3. 2. 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

4. 3. A gamma-ray study of a highly variable blazar : The Fermi-LAT analysis and the modeling of the FSRQ PKS 1510–089

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

   Author : Nadja Bollström; [2021]
   Keywords : active galactic nuclei; AGN; astrophysics; jet; PKS 1510-089; Fermi; external Compton model; gamma-rays;

   Abstract : The subject of this thesis is the analysis and modeling of the active galactic nucleus PKS 1510-089. The aim is to present a thorough background of active galactic nuclei combined with the analysis and modeling of a specific active galactic nucleus. The results will then be  linked to previous research and theories about active galactic nuclei. READ MORE

5. 4. AGN Candidates for High Energy Neutrino Emission in IceCube

   University essay from Uppsala universitet/Högenergifysik

   Author : Roisín O'Rourke Brogan; [2020]
   Keywords : active galactic nuclei; agn; high energy physics; neutrinos; IceCube; blazars; jets; gamma emission;

   Abstract : Since the construction of the IceCube Neutrino Observatory was completed in 2010, many amazing discoveries have been made in the field of neutrino physics. Recently a neutrino event has been linked to an blazar-type active galactic nucleus source, bringing us one step closer to understanding the production of high-energy extragalactic neutrinos and ushering in a new era of multimessenger astronomy. READ MORE

6. 5. Original: X-ray Spectral Analysis of a Serendipitously Observed Active Galactic Nucleus

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Teodor Elmfeldt; Filip af Malmborg; [2020]
   Keywords : ;

   Abstract : An active galactic nucleus (AGN) is a region in the center of a galaxy with a supermassive black hole continuosly accreting material. This accretion gives rise to large amounts of radiation across the whole electromagnetic spectrum, and largely affects the regions around the AGN and the evolution of the whole galaxy. READ MORE