3 papers
gr-qc2025
Theory-agnostic searches for non-gravitational modes in black hole ringdown
Francesco Crescimbeni, Xisco Jimenez Forteza, Swetha Bhagwat +2
In any extension of General Relativity (GR), extra fundamental degrees of freedom couple to gravity. Besides deforming GR forecasts in a theory-dependent way, this coupling generic…
gr-qc2025
Inferring black hole formation channels in GWTC-4.0 via parametric mass-spin correlations derived from first principles
Emanuele Berti, Francesco Crescimbeni, Gabriele Franciolini +3
We investigate the differences between several proposed formation scenarios for binary black holes (BBHs), including isolated stellar evolution, dynamical assembly in dense cluster…
astro-ph.HE2025
Cosmology and nuclear-physics implications of a subsolar gravitational-wave event
Francesco Crescimbeni, Gabriele Franciolini, Paolo Pani +1
Detecting a compact subsolar object would have profound implications in physics, the reach of which depends on the nature of the object. Here we explore such consequences for a put…