Probing strong-field scalar-tensor gravity with gravitational wave asteroseismology

Hajime Sotani and Kostas D. Kokkotas
Phys. Rev. D 70, 084026 – Published 19 October 2004

Abstract

We present an alternative way of tracing the existence of a scalar field based on the analysis of the gravitational wave spectrum of a vibrating neutron star. Scalar-tensor theories in strong-field gravity can potentially introduce much greater differences in the parameters of a neutron star than the uncertainties introduced by the various equations of state. The detection of gravitational waves from neutron stars can set constraints on the existence and the strength of scalar fields. We show that the oscillation spectrum is dramatically affected by the presence of a scalar field, and can provide unique confirmation of its existence.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 30 June 2004

DOI:https://doi.org/10.1103/PhysRevD.70.084026

©2004 American Physical Society

Authors & Affiliations

Hajime Sotani*

  • Research Institute for Science and Engineering, Waseda University, Okubo 3-4-1, Shinjuku, Tokyo 169-8555, Japan

Kostas D. Kokkotas

  • Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
  • Center for Gravitational Wave Physics, 104 Davey Laboratory, University Park, Pennsylvania 16802, USA

  • *Electronic address: sotani@gravity.phys.waseda.ac.jp
  • Electronic address: kokkotas@auth.gr

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 70, Iss. 8 — 15 October 2004

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×