Speaker
Dr
Leonardo Gualtieri
(Dipartimento di Fisica, "Sapienza" Università di Roma)
Description
Tidal Love numbers carry valuable information on the inner structure of a neutron star, and on its equation of state. This information could be extracted, by IInd and IIIrd generation gravitational wave detectors, from the gravitational wave signal emitted by coalescing neutron star-neutron star binaries. Up to now, the theoretical modelling and computation of Love numbers has been limited to static, spherically symmetric objects. We want to compute the Love numbers of rotating neutron stars. To this aim, using a perturbative approach, we have studied the solutions of Einstein's equations describing a spinning compact object distorted by an axisymmetric tidal field. We have considered black hole solutions up to second order in the rotation rate, and neutron star solutions up to first order in the rotation rate, finding out the corrections to Love numbers due to rotation. Our preliminary results suggest that in the case of neutron stars, rotation may give a significant contribution to the tidal Love numbers, and to the mass quadrupole.
Primary author
Dr
Leonardo Gualtieri
(Dipartimento di Fisica, "Sapienza" Università di Roma)
Co-authors
Dr
Andrea Maselli
(Georgia Tech, Atlanta, US)
Dr
Paolo Pani
("Sapienza" University of Rome)
Prof.
Valeria Ferrari
("Sapienza" University of Rome)
