Gravitational waves from neutron star collisions, first detected only a few years ago, serve as a potential discovery tool for new forms of dense matter. We study particular oscillations of neutron star matter driven by chemical gradients, called g-modes, that couple to gravitational waves. Using theoretical models for nuclear and quark matter in a typical neutron star, we compute key physical quantities such as the proton fraction and the local Brunt-Vaisala frequency which determine the global g-mode oscillation frequency. The trends in the g-mode frequency with neutron star mass offer a striking new signal of quark matter in neutron stars. The hope is that future gravitational wave detectors with better sensitivity will be able to find (or rule out) this distinct g-mode signature of quark matter. These results form part of two papers submitted to the Astrophysical Journal that are currently under review.
|Commitee:||Papp, Zoltan, Ojeda-Aristizabal, Claudia|
|School:||California State University, Long Beach|
|Department:||Physics and Astronomy|
|School Location:||United States -- California|
|Source:||MAI 82/6(E), Masters Abstracts International|
|Subjects:||Astrophysics, Nuclear physics, Aeronomy, Materials science, Atmospheric sciences|
|Keywords:||g-modes, Neutron star, Phase transition, Star collisions, Oscillations, Star matter, Gravitational waves, Astrophysical Journal|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be