6 papers
Dynamical Tidal Response of Neutron Stars: from Effective Field Theory to Gravitational Waveforms
Thomas Apostolidis, Valerio De Luca, Leonardo Gualtieri +3
We investigate the fully relativistic dynamical tidal response of neutron stars up to second order in the frequency. Combining the worldline effective field theory for extended gra…
Primordial Black-Hole-Based Pathways to Little Red Dots
Valerio De Luca, Loris Del Grosso, Gabriele Franciolini +4
The James Webb Space Telescope has uncovered a population of compact, high-redshift sources, the Little Red Dots (LRDs), which may host supermassive black holes (BHs) significantly…
GW231123: A Possible Primordial Black Hole Origin
Valerio De Luca, Gabriele Franciolini, Antonio Riotto
GW231123, the heaviest binary black hole merger detected by the LIGO-Virgo-KAGRA Collaboration to date, lies in the pair-instability mass gap and exhibits unusually high component…
Tidal deformability of black holes surrounded by thin accretion disks
Enrico Cannizzaro, Valerio De Luca, Paolo Pani
The tidal Love numbers of self-gravitating compact objects describe their response to external tidal perturbations, such as those from a companion in a binary system, offering valu…
Flea on the elephant: Tidal Love numbers in subsolar primordial black hole searches
Valerio De Luca, Gabriele Franciolini, Antonio Riotto
Detecting subsolar objects in black hole binary mergers is considered a smoking gun signature of primordial black holes. Their supposedly vanishing tidal Love number is generically…
Tidal Love numbers and Green's functions in black hole spacetimes
Valerio De Luca, Alice Garoffolo, Justin Khoury +1
Tidal interactions play a crucial role in deciphering gravitational wave signals emitted by the coalescence of binary systems. They are usually quantified by a set of complex coeff…