742 citations · 2.1k across the 15 of their papers we have counts for
15 papers
Spherically symmetric elastic bodies in general relativity
Artur Alho, José Natário, Paolo Pani +1
The purpose of this review it to present a renewed perspective of the problem of self-gravitating elastic bodies under spherical symmetry. It is also a companion to the papers [Phy…
Scale invariant elastic stars in General Relativity
Artur Alho, José Natário, Paolo Pani +1
We present a model of relativistic elastic stars featuring scale invariance. This implies a linear mass-radius relation and the absence of a maximum mass. The most compact spherica…
Compactness bounds in General Relativity
Artur Alho, José Natário, Paolo Pani +1
A foundational theorem due to Buchdahl states that, within General Relativity (GR), the maximum compactness of a static, spherically symmetric, perfec…
Compact elastic objects in general relativity
Artur Alho, José Natário, Paolo Pani +1
We introduce a rigorous and general framework to study systematically self-gravitating elastic materials within general relativity, and apply it to investigate the existence and vi…
Testing the nature of dark compact objects with gravitational waves
Elisa Maggio, Paolo Pani, Guilherme Raposo
Within Einstein's theory of gravity, any compact object heavier than a few solar masses must be a black hole. Any observation showing otherwise would imply either new physics beyon…
Black-hole microstate spectroscopy: ringdown, quasinormal modes, and echoes
Taishi Ikeda, Massimo Bianchi, Dario Consoli +4
Deep conceptual problems associated with classical black holes can be addressed in string theory by the ``fuzzball'' paradigm, which provides a microscopic description of a black h…
The multipolar structure of fuzzballs
Massimo Bianchi, Dario Consoli, Alfredo Grillo +3
We extend and refine a general method to extract the multipole moments of arbitrary stationary spacetimes and apply it to the study of a large family of regular horizonless solutio…
Distinguishing fuzzballs from black holes through their multipolar structure
Massimo Bianchi, Dario Consoli, Alfredo Grillo +3
Within General Relativity, the unique stationary solution of an isolated black hole is the Kerr spacetime, which has a peculiar multipolar structure depending only on its mass and…
Axisymmetric deformations of neutron stars and gravitational-wave astronomy
Guilherme Raposo, Paolo Pani
Einstein's theory of general relativity predicts that the only stationary configuration of an isolated black hole is the Kerr spacetime, which has a unique multipolar structure and…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
Ultralight boson cloud depletion in binary systems
Emanuele Berti, Richard Brito, Caio F. B. Macedo +2
Ultralight scalars can extract rotational energy from astrophysical black holes through superradiant instabilities, forming macroscopic boson clouds. This process is most efficient…
Exotic compact objects with soft hair
Guilherme Raposo, Paolo Pani, Roberto Emparan
Motivated by the lack of a general parametrization for exotic compact objects, we construct a class of perturbative solutions valid for small (but otherwise generic) multipolar dev…
Anisotropic stars as ultracompact objects in General Relativity
Guilherme Raposo, Paolo Pani, Miguel Bezares +2
Anisotropic stresses are ubiquitous in nature, but their modeling in General Relativity is poorly understood and frame dependent. We introduce the first study on the dynamical prop…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…
Testing strong-field gravity with tidal Love numbers
Vitor Cardoso, Edgardo Franzin, Andrea Maselli +2
The tidal Love numbers (TLNs) encode the deformability of a self-gravitating object immersed in a tidal environment and depend significantly both on the object's internal structure…