Gravitational waves at the first post-Newtonian order with the Weyssenhoff fluid in Einstein-Cartan theory

Autor(en)

Emmanuele Battista, Vittorio De Falco

Abstrakt

The generation of gravitational waves from a post-Newtonian source endowed with a quantum spin, modeled by the Weyssenhoff fluid, is investigated in the context of Einstein-Cartan theory at the first post-Newtonian level by resorting to the Blanchet-Damour formalism. After having worked out the basic principles of the hydrodynamics in Einstein-Cartan framework, we study the Weyssenhoff fluid within the post-Newtonian approximation scheme. The complexity of the underlying dynamical equations suggests to employ a discrete description via the point-particle limit, a procedure which permits the analysis of inspiralling spinning compact binaries. We then provide a first application of our results by considering binary neutron star systems.

Organisation(en)

Mathematische Physik

Externe Organisation(en)

Università degli studi di Napoli Federico II, Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Napoli

Journal

European Physical Journal C

Band

82

Anzahl der Seiten

24

ISSN

1434-6044

DOI

https://doi.org/10.1140/epjc/s10052-022-10558-9

Publikationsdatum

07-2022

Peer-reviewed

Ja

ÖFOS 2012

103012 Hochenergiephysik, 103028 Relativitätstheorie, 103019 Mathematische Physik

Schlagwörter

ASJC Scopus Sachgebiete

Engineering (miscellaneous), Physics and Astronomy (miscellaneous)

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/405eec8b-be43-47d8-a8a7-1886c93c6443