Essays about: "active galactic nucleus"

Showing result 6 - 10 of 12 essays containing the words active galactic nucleus.

  1. 6. Type-1 Active Falactic Nuclei and their Supernovae

    University essay from Uppsala universitet/Teoretisk astrofysik

    Author : Inigo Imaz Chacon; [2019]
    Keywords : SN; AGN; supernova; counts; star formation; astronomy; type-1 AGN; obscured; thermonuclear; core-collapsed;

    Abstract : Supernovae (SNe) and more specifically Core-Collapsed SNe (CC SNe) are signatures of on-going star formation (SF), and higher star formation rates. In this project, we perform a study of all SNe ever discovered inside a specific type of galaxy: a type-1 Active Galactic Nucleus (AGN1). READ MORE

  3. 7. The Almighty Quasar — Destroyer of Worlds

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Julia Ahlvind; [2019]
    Keywords : Astronomy; Habitability; Quasars; Active galactic nucleus; AGN;

    Abstract : In the study of habitability of terrestrial exoplanets, both life-supporting conditions and the prevalence of transient life-threatening events need to be considered. One type of hazardous effect that has so far not received much attention is the thermal effect of a nearby active galactic nucleus (AGN), or in this particular case, the class of the AGN known as a quasar. READ MORE

  4. 8. High energy gamma ray emission and multi-wavelength view of the AGN PKS 0537-441

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

    Author : Emma Fransson; [2017]
    Keywords : astrophysics; AGN; PKS 0537-441; jet; accretion; synchrotron self compton; spectral energy distribution;

    Abstract : This thesis describes the analysis of Very High Energy (VHE) emission from the Active Galactic Nucleus PKS 0537-441. It also aims to put the results in a wider context by implementing previous work done on this source. The data chosen for the analysis is provided by the Fermi-LAT satellite and covers the energy range between 300 MeV and 300 GeV. READ MORE

  5. 9. X-ray Spectroscopy of Distant Active Galactic Nuclei

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Charlie Börjeson; Julia Cohen; [2017]
    Keywords : ;

    Abstract : The physical structure and behaviour of stars have been studied extensively throughout centuries.In contrast, the existence of objects now known as Active Galaxies has only been established since a couple of decades. READ MORE

  6. 10. Inverse Compton gamma-rays from Markarian 421 : A study of GeV and TeV emission from Mrk 421 based on Fermi-LAT and H.E.S.S. data

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

    Author : Tom Andersson; [2016]
    Keywords : astrophysics; AGN; active galactic nucleus; gamma-rays; Markarian 421; energy flux; spectral energy distribution; synchrotron self Compton;

    Abstract : This thesis summarizes a senior project on the Active Galactic Nucleus (AGN) Markarian 421 (Mrk 421). Observations of Gev and TeV flux with Fermi Large Area Telescope (LAT) and High Energy Stereoscopic System (H.E.S. READ MORE