Modeling the multi-wavelength spectrum from Active Galactic Nuclei

Abstract

Blazars are a sub-category of radio-loud active galactic nuclei with relativistic jets pointingtowards the observer. They exhibit non-thermal variable emission, which practically extends over the whole electromagnetic spectrum. Despite the plethora of multi-wavelength observations, the origin of the emission in blazar jets remains an open question. We construct a parametric leptonic model for studying the connection between the gamma-ray and radio emission of these objects both in steady-state and during flaring. Furthermore, to explain the Blazar Sequence and the broader properties of blazars as determined by the Fermi observations, we assume that AccretionDisk MHD Winds provide the necessary ambient photon field for electron scattering and we investigate the role of the mass accretion rate onto the supermassive black hole.

All items in National Archive of Phd theses are protected by copyright.

Handle URL
http://hdl.handle.net/10442/hedi/49818
ND
49818
Alternative title
Μοντελοποίηση του πολυκυματικού συνεχούς φάσματος από ενεργούς γαλαξιακούς πυρήνες
Author
Boula, Styliani of Stamatios
Date
2021
Degree Grantor
National and Kapodistrian University of Athens
Committee members
Μαστιχιάδης Απόστολος
Βλαχάκης Νεκτάριος
Καζάνας Δημοσθένης
Χατζηδημητρίου Δέσποινα
Δασύρα Καλλιόπη
Πετροπούλου Μαρία
Γεωργαντόπουλος Ιωάννης
Discipline
Natural SciencesPhysical Sciences ➨ Astronomy and Astrophysics
Keywords
Active galactic nuclei (AGN); Radiation; multi-wavelength spectrum; Modeling
Country
Greece
Language
Greek
Description
im., tbls., fig., ch.
Usage statistics
VIEWS
Concern the unique Ph.D. Thesis' views.
Source: Google Analytics.
ONLINE READER
Concern the online reader's opening.
Source: Google Analytics.
DOWNLOADS
Concern all downloads of this Ph.D. Thesis' digital file.
Source: National Archive of Ph.D. Theses.
USERS
Concern the unique Ph.D. Thesis' views.
Source: National Archive of Ph.D. Theses.