240 citations · 2.6k across the 67 of their papers we have counts for
6 papers · 1 filter
Can we observationally test the weak cosmic censorship conjecture?
Lingyao Kong, Daniele Malafarina, Cosimo Bambi
In general relativity, gravitational collapse of matter fields ends with the formation of a spacetime singularity, where the matter density becomes infinite and standard physics br…
Gravitational blueshift from a collapsing object
Lingyao Kong, Daniele Malafarina, Cosimo Bambi
We discuss a counterintuitive phenomenon of classical general relativity, in which a significant fraction of the radiation emitted by a collapsing object and detected by a distant…
K iron line profile from accretion disks around regular and singular exotic compact objects
Cosimo Bambi, Daniele Malafarina
The nature of the super-massive black hole candidates in galactic nuclei can be tested by analyzing the profile of the K iron line observed in their X-ray spectrum. In this pape…
Terminating black holes in asymptotically free quantum gravity
Cosimo Bambi, Daniele Malafarina, Leonardo Modesto
We study the homogeneous gravitational collapse of a spherical cloud of matter in a super-renormalizable and asymptotically free theory of gravity. We find a picture that differs s…
Non-singular quantum-inspired gravitational collapse
Cosimo Bambi, Daniele Malafarina, Leonardo Modesto
We consider general relativistic homogeneous gravitational collapses for dust and radiation. We show that replacing the density profile with an effective density justified by some…
Distinguishing black holes from naked singularities through their accretion disk properties
Pankaj S. Joshi, Daniele Malafarina, Ramesh Narayan
We show that, in principle, a slowly evolving gravitationally collapsing perfect fluid cloud can asymptotically settle to a static spherically symmetric equilibrium configuration w…