Gravitational Waves and Pulsating Stars: What Can We Learn from Future Observations?

Nils Andersson; Kostas D. Kokkotas

doi:10.1103/PhysRevLett.77.4134

Gravitational Waves and Pulsating Stars: What Can We Learn from Future Observations?

Nils Andersson and Kostas D. Kokkotas

Phys. Rev. Lett. 77, 4134 – Published 11 November 1996

Abstract

We present new results for pulsating stars in general relativity. First we show that the so-called gravitational-wave modes of a neutron star can be excited when a gravitational wave impinges on the star. Numerical simulations suggest that the modes may be astrophysically relevant, and we discuss whether they will be observable with future gravitational-wave detectors. We also discuss how such observations could lead to estimates of both the radius and the mass of a neutron star, and thus put constraints on the nuclear equation of state.

Received 24 January 1996

DOI:https://doi.org/10.1103/PhysRevLett.77.4134

Authors & Affiliations

Nils Andersson^1,2 and Kostas D. Kokkotas^3,4

¹Department of Physics, Washington University, St. Louis, Missouri 63130
²Department of Physics and Astronomy, University of Wales College of Cardiff, Cardiff CF2 3YB, United Kingdom
³Max-Planck-Society Research-Unit Theory of Gravitation, University of Jena, D-07743 Jena, Germany
⁴Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54006, Greece