63 citations · 103 across the 9 of their papers we have counts for
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Modeling the frequency-domain ringdown amplitude of comparable-mass mergers with greybody factors
Romeo Felice Rosato, Sophia Yi, Emanuele Berti +1
It was recently shown that, in a binary coalescence, the greybody factor of the remnant black hole modulates the post-merger ringdown signal. In this work, we demonstrate that a si…
Excitation factors for horizonless compact objects: long-lived modes, echoes, and greybody factors
Romeo Felice Rosato, Shauvik Biswas, Sumanta Chakraborty +1
We present an analytical and numerical investigation of the quasinormal excitation factors of ultracompact horizonless objects. These systems possess long lived quasinormal modes w…
Greybody factors as robust gravitational observables: insights into post-merger signals and echoes from ultracompact object
Romeo Felice Rosato
The quasinormal mode spectrum plays a central role in modeling the post-merger ringdown phase of binary coalescences of compact objects. However, its interpretation is subject to c…
On the universality of late-time ringdown tail
Romeo Felice Rosato, Paolo Pani
The late time response of vacuum black holes in General Relativity is notoriously governed by power law tails arising from the wave scattering off the curved spacetime geometry far…
Greybody factors, reflectionless scattering modes, and echoes of ultracompact horizonless objects
Romeo Felice Rosato, Shauvik Biswas, Sumanta Chakraborty +1
Motivated by a recently discovered connection between the greybody factors of black holes and the ringdown signal, we investigate the greybody factors of ultracompact horizonless o…