Gravitational Radiation from Neutron Stars and Black Holes

Authors: Carlos F. Sopuerta

(Submitted on 4 Aug 2008)

Abstract: Gravitational Wave Astronomy is becoming a reality as Earth-based interferometric gravitational-wave detectors reach the design sensitivities and move towards advanced configurations that may lead to gravitational-wave detections in the immediate future.

In this contribution, I briefly summarize the basic characteristics of this new area, the discovery prospects and the potential for fundamental physics. Then, I present results of some investigations of two different sources of gravitational waves that are potential targets for present and future planned observatories.

First, I will discuss the generation of gravitational radiation by non-linear effects arising from the coupling between radial and non-radial oscillations of neutron stars, which may produce distinctive gravitational-wave signatures. The gravitational radiation emitted by these sources is in the frequency band of Earth-based detectors. And second, I will discuss the gravitational-wave emission during the inspiral of extreme-mass-ratio compact binaries. In this case, the gravitational waves have low frequencies, inside the frequency band of space observatories like LISA.

Comments: 14 pages, 3 figures. Proceedings of the conference "Supernovae: lights in the darkness" (XXIII Trobades Cientifiques de la Mediterrania), October 3-5, 2007, Mao, Menorca (Spain). To appear in Proceedings of Science

Subjects: Astrophysics (astro-ph)

Journal reference: PoS(SUPERNOVA)026 (2008)

Cite as: arXiv:0808.0389v1 [astro-ph]

Submission history

From: Carlos F. Sopuerta [view email]

[v1] Mon, 4 Aug 2008 07:39:52 GMT (156kb,D)

http://arxiv.org/abs/0808.0389