Analytic fourier- Domain models for the post-merger gravitational wave Signal in binary neutron star mergers

Μαρινίτση, Άννα; Marinitsi, Anna

dc.contributor.author	Μαρινίτση, Άννα	el
dc.contributor.author	Marinitsi, Anna	en
dc.date.accessioned	2024-04-18T07:42:16Z
dc.date.available	2024-04-18T07:42:16Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/59214
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.26910
dc.rights	Default License
dc.subject	Gravitational waves	en
dc.subject	Neutron stars	en
dc.subject	Fourier transform	en
dc.subject	Analytical models	en
dc.subject	Post merger	en
dc.subject	Βαρυτικά κύματα	el
dc.subject	Αστέρες νετρονίων	el
dc.subject	Μετασχηματισμός φουριέ	el
dc.subject	Αναλυτικά μοντέλα	el
dc.subject	Μετά τη συγχώνευση	el
dc.title	Analytic fourier- Domain models for the post-merger gravitational wave Signal in binary neutron star mergers	en
heal.type	masterThesis
heal.classification	Mathematics, Physics, Astronomy	en
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2023-10-30
heal.abstract	Gravitational-wave astronomy is a rapidly emerging new field with great potential to expand our knowledge of the Universe. An anticipated new source of gravitational waves is the post-merger phase of binary neutron star mergers. If detected, it will allow us to constrain the equation of state of high-density matter at finite temperatures. Successful detection requires highly accurate analytical templates that describe the gravitational wave emission of the post-merger remnants. To date, only simple templates exist in the frequency domain. In this thesis, we compute analytic templates in the frequency domain that agree exactly with their corresponding time-domain representations. The most advanced model includes a time evolving dominant post-merger frequency. Using nonlinear least-squares fits to synthetic data, we show that our new frequency-domain models have advantages over previous, simpler expressions used in the literature. Our models are thus useful for detection and parameter estimation of the post-merger phase in binary neutron star mergers.	en
heal.advisorName	Στεργιούλας, Νικόλαος	el
heal.committeeMemberName	Κούβαρης, Χριστόφορος	el
heal.committeeMemberName	Χρυσαφίνος, Κωνσταντίνος	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Εφαρμοσμένων Μαθηματικών και Φυσικών Επιστημών	el
heal.academicPublisherID	ntua
heal.fullTextAvailability	false