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Identifier	000442064
Title	Study of long term X-ray time lags in AGN
Alternative Title	Μελέτη φασμάτων καθυστέρησης ακτίνων-Χ σε ενεργούς γαλαξίες
Author	Καρακωντσταντάκης, Άγγελος Ε.
Thesis advisor	Παπαδάκης, Ιωσήφ
Reviewer	Κυλάφης, Νικόλαος Reig, Pablo
Abstract	The X-ray emission from AGN is highly variable, on short (minutes/hours/day) and long (months/years) time scales. A particular characteristic of the observed variations is that the higher energy band variations are delayed with respect to lower energy photons. I will use archival Rossi X-ray Timing Explorer (RXTE) light curves and I will study the long term, frequency-dependent, X-ray time-lags of the Seyfert galaxies MCG-6–30–15, Ark 564 and Mkn 766 in the 2–4, 4–7, and 7–10 keV bands. The main objective of this project is to investigate how these delays compare with the results from the model fitting of the time lags at higher frequencies.
Language	English
Subject	Active galactic nuclei
	Active galaxies
	X-Ray time-lag spectrum of AGN
	X-Rays
	Ακτίνες-Χ
	Ενεργοί γαλαξίες
	Ενεργοί γαλαξιακοί πυρήνες (ΕΓΠ)
	Φάσματα καθυστέρησης ακτίνων-Χ
Issue date	2021-11-19
Collection	School/Department--School of Sciences and Engineering--Department of Physics--Post-graduate theses
	Type of Work--Post-graduate theses
Permanent Link	https://elocus.lib.uoc.gr//dlib/2/4/9/metadata-dlib-1631604361-657553-12816.tkl
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