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Moscatello, Andrea (2019) The Memory Effect of Gravitational Waves in General Relativity: Theoretical overview and observational perspectives. [Laurea triennale]

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Abstract

The aim of this thesis is to carry out the study of the memory effect of gravitational waves (GWs). The first chapter is a brief introduction to General Relativity (GR), gravitational waves and their detection. The second chapter is dedicated to a theoretical description of the memory, with its analytical form and its possible sources. Both the linear and the non-linear effects are described, along with their differences in sources and physical interpretations. I will show how these two different effects appear to be the same when considering GWs as massless gravitons. I will also show how to compute the memory for a black holes (BHs) merging. The last chapter deals with perspectives on the memory detection: an analysis of its detectability and its signal to noise ratio (SNR) with the aLIGO and aVIRGO detectors. I will also give an analytical form for the aVIRGO noise expected for the O3 run. Eventually, I will focus on detection via summation of multiple memories and the orphan memory, a memory detected without parent GW signal.

Item Type:Laurea triennale
Corsi di Laurea Triennale:Scuola di Scienze > Fisica
Uncontrolled Keywords:Memory, Gravitational Wave, Black holes, coalescence, GW, BH, gravitons, VIRGO, LIGO, general relativity
Subjects:Area 02 - Scienze fisiche > FIS/02 Fisica teorica, modelli e metodi matematici
Area 02 - Scienze fisiche > FIS/05 Astronomia e astrofisica
Codice ID:62610
Relatore:Zendri, Jean-Pierre
Correlatore:Ortolan, Antonello
Data della tesi:25 March 2019
Biblioteca:Polo di Scienze > Dip. Fisica e Astronomia "Galileo Galilei" - Biblioteca
Tipo di fruizione per il documento:on-line per i full-text
Tesi sperimentale (Si) o compilativa (No)?:No

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