Arşiv ve Dokümantasyon Merkezi
Dijital Arşivi

Gravitational wave solutions to linearized Jordan Brans Dicke theory on a cosmological background

Basit öğe kaydını göster

dc.contributor Graduate Program in Physics.
dc.contributor.advisor Semiz, İbrahim.
dc.contributor.advisor Arık, Metin.
dc.contributor.author Dünya, Önder.
dc.date.accessioned 2023-03-16T10:37:15Z
dc.date.available 2023-03-16T10:37:15Z
dc.date.issued 2017.
dc.identifier.other PHYS 2017 D88
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/13614
dc.description.abstract In this thesis, approximate vacuum solutions of Jordan-Brans-Dicke theory for perturbed scalar eld and perturbed Robertson-Walker metric, were found. First we obtained solutions for the scale factor a(t) and the scalar eld (t) in unperturbed JBD theory. The solutions are dependent on JBD constant !JBD which is the value of how the scalar eld is coupled to geometry of space-time. Then we added metric perturbation h (x) to Robertson-Walker metric and perturbation (x) to the scalar eld (t) in order to construct linearized JBD equations. After acquiring the metric perturbation and ( = ) as gravitational wave and scalar gravitational wave respectively, we solved the JBD equations which are rst order in h (x) and (x) such that the scale factor and the scalar eld solutions are a / t and / t{u100000}2 with !JBD = {u100000}3=2. These results are necessary conditions for ordinary and scalar gravitational waves to exist in vacuum case. Despite !JBD > 104 for current solar system environment observations, !JBD = {u100000}3=2 makes JBD theory conformally invariant and ts recent supernovae type Ia data.
dc.format.extent 30 cm.
dc.publisher Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2017.
dc.subject.lcsh Gravitation.
dc.subject.lcsh Cosmology.
dc.subject.lcsh Inflationary universe.
dc.title Gravitational wave solutions to linearized Jordan Brans Dicke theory on a cosmological background
dc.format.pages ix, 37 leaves ;


Bu öğenin dosyaları

Bu öğe aşağıdaki koleksiyon(lar)da görünmektedir.

Basit öğe kaydını göster

Dijital Arşivde Ara


Göz at

Hesabım