Sökning: "aktiv galaxkärna"

Hittade 2 uppsatser innehållade orden aktiv galaxkärna.

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

   Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

   Författare :Teodor Elmfeldt; Filip af Malmborg; [2020]
   Nyckelord :;

   Sammanfattning : 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. LÄS MER

3. 2. The Almighty Quasar — Destroyer of Worlds

   Kandidat-uppsats, Uppsala universitet/Observationell astrofysik

   Författare :Julia Ahlvind; [2019]
   Nyckelord :Astronomy; Habitability; Quasars; Active galactic nucleus; AGN;

   Sammanfattning : 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. LÄS MER