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dc.contributor.advisorOzel, Feryalen
dc.contributor.advisorPsaltis, Dimitriosen
dc.contributor.authorBaubock, Michael
dc.creatorBaubock, Michaelen
dc.date.accessioned2016-10-19T19:15:52Z
dc.date.available2016-10-19T19:15:52Z
dc.date.issued2016
dc.identifier.urihttp://hdl.handle.net/10150/621065
dc.description.abstractMeasurements of neutron-star properties provide a natural way to test models of cold dense matter and theories of gravity. In order to correctly interpret these measurements, accurate models taking into account the special and general relativistic effects arising from the strong gravity and fast spin of these sources are necessary. Moreover, for some observables the effects of the rapid spin can dominate the measurement. In this thesis, I develop a ray-tracing algorithm using the Hartle-Thorne metric that allows me to determine the effects of gravity on several observables. I use this algorithm to calculate the bias introduced when observations are interpreted under the common assumption that the source is slowly spinning or not spinning at all. I show that this assumption can lead to errors in mass and radius measurements that are larger than the accuracy needed to distinguish between different models for the equation of state.
dc.language.isoen_USen
dc.publisherThe University of Arizona.en
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en
dc.subjectAstronomyen
dc.titleEffects of Spin on Neutron-Star Observationsen_US
dc.typetexten
dc.typeElectronic Dissertationen
thesis.degree.grantorUniversity of Arizonaen
thesis.degree.leveldoctoralen
dc.contributor.committeememberPsaltis, Dimitriosen
dc.contributor.committeememberOzel, Feryalen
dc.contributor.committeememberKratter, Kaitlinen
dc.contributor.committeememberSmith, Nathanen
dc.contributor.committeememberStark, Danielen
thesis.degree.disciplineGraduate Collegeen
thesis.degree.disciplineAstronomyen
thesis.degree.namePh.D.en
refterms.dateFOA2018-06-16T09:11:38Z
html.description.abstractMeasurements of neutron-star properties provide a natural way to test models of cold dense matter and theories of gravity. In order to correctly interpret these measurements, accurate models taking into account the special and general relativistic effects arising from the strong gravity and fast spin of these sources are necessary. Moreover, for some observables the effects of the rapid spin can dominate the measurement. In this thesis, I develop a ray-tracing algorithm using the Hartle-Thorne metric that allows me to determine the effects of gravity on several observables. I use this algorithm to calculate the bias introduced when observations are interpreted under the common assumption that the source is slowly spinning or not spinning at all. I show that this assumption can lead to errors in mass and radius measurements that are larger than the accuracy needed to distinguish between different models for the equation of state.


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