Publications (8)
Feedback in the dark: a critical examination of CMB bounds on primordial black holes
Dominic Agius, Rouven Essig, Daniele Gaggero +3
If present in the early universe, primordial black holes (PBHs) will accrete matter and emit high-energy photons, altering the statistical properties of the {Cosmic Microwave Backg…
On the survival of dark matter spikes: Stellar and compact-object perturbations
Theophanes K. Karydas, Francesca Scarcella, Bradley J. Kavanagh +1
Establishing realistic expectations for the dark matter (DM) distribution near a supermassive black hole (BH) is essential for assessing environmental imprints on gravitational wav…
CMB bounds on primordial black holes with dark matter mini-halos: the role of radiative feedback
Francesca Scarcella
Observations of the cosmic microwave background constrain the abundance of primordial black holes, as these would accrete gas and inject energy into the cosmological medium. We hav…
Black Hole Phenomenology and Dark Matter Searches
Francesca Scarcella
Motivated by recent detections of black hole binary systems through gravitational waves, in this thesis we discuss two complementary channels for the observation of Primordial Blac…
Multi-wavelength detectability of isolated black holes in the Milky Way
Francesca Scarcella, Daniele Gaggero, Riley Connors +3
Isolated black holes in our Galaxy have eluded detection so far. We present here a comprehensive study on the detectability of isolated stellar-mass astrophysical black holes that…
Dancing in the dark: detecting a population of distant primordial black holes
Matteo Martinelli, Francesca Scarcella, Natalie B. Hogg +3
Primordial black holes (PBHs) are compact objects proposed to have formed in the early Universe from the collapse of small-scale over-densities. Their existence may be detected fro…