Multifrequency VLBA observations of two compact symmetric objects

Rastello, Sara (2015) Multifrequency VLBA observations of two compact symmetric objects. [Laurea magistrale], Università di Bologna, Corso di Studio in Astrofisica e cosmologia [LM-DM270]
Documenti full-text disponibili:
Documento PDF
Download (6MB) | Anteprima


In this thesis the results of the multifrequency VLBA observations of the GPS 1944+5448 and the HFP J0111+3906 are presented. They are compact objects smaller than about 100 pc, completely embedded in the host galaxy. The availability of multi-epoch VLBI observations spanning more than 10 years, allowed us to compute the hot spot advance speed in order to obtain the kinematic age of both sources. Both radio sources are young, in agreement with the idea that they are in an early evolutionary stage. The spectral analysis of each source component, such as the lobes, the hot spots, the core and the jets, making a comparison with the theoretical ones is described. In addition the physical parameters derived from VLBA images as the magnetic field, the luminosity, the energy and the ambient medium density of both sources are discussed.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Rastello, Sara
Relatore della tesi
Corso di studio
Ordinamento Cds
Parole chiave
AGN, radio galaxies, CSO, CSS, GPS, HFP
Data di discussione della Tesi
17 Luglio 2015

Altri metadati

Statistica sui download

Gestione del documento: Visualizza il documento