UJDigispace Repository

Probing general relativity through simulations of the Shapiro time delay of light in binary pulsar systems

Show simple item record

dc.contributor.author Lodewijks, Marten Barend
dc.date.accessioned 2008-06-05T11:42:30Z
dc.date.available 2008-06-05T11:42:30Z
dc.date.issued 2008-06-05T11:42:30Z
dc.identifier.uri http://hdl.handle.net/10210/554
dc.description.abstract The theory of General Relativity has been in existence for 90 years and has stood up to all tests it has been subjected to in that time. The PPN parameter is a measure of the accuracy of theories of gravity and assumes different values in different theories. By measuring the Shapiro time delay of light it is possible to constrain and thereby constrain gravitational theories. This Shapiro time delay can be measured in our solar system but it is only in the vicinity of extremely compact objects such as pulsars and black holes that it can be tested under the immense gravitational fields that can only be found there. A pulsar in a binary orbit about another compact object is the ideal system in which to test this effect. In this work we have gone from Kepler’s laws of simple planetary motion to deriving the equations that explain binary orbits to incorporating General Relativity into these equations in order to obtain the equations for relativistic particle orbits. We then evolved this theory even further so as to be able to explain relativistic light ray orbits and then used this knowledge to model the Shapiro delay in a binary system. With a working model it became possible to simulate the Shapiro delay in a wide range of possible systems and then to use these simulations to say something about what type of system should be focussed on in future so as to measure the Shapiro delay and thereby constrain more tightly the parameter en
dc.description.sponsorship Dr. C.A. Engelbrecht Dr. F.A.M. Frescura en
dc.language.iso en en
dc.subject General relativity (Physics) en
dc.subject Pulsars en
dc.title Probing general relativity through simulations of the Shapiro time delay of light in binary pulsar systems en
dc.type Thesis en

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search UJDigispace


My Account