34 citations · 34 across the 2 of their papers we have counts for
2 papers
astro-ph.CO2025
Constraints on Dark Matter Structures around Gaia Black Holes
Nuno P. Branco, Ricardo Z. Ferreira, João G. Rosa +1
We demonstrate that Gaia's detection of stars on wide orbits around black holes opens a new observational window on dark matter structures -- such as scalar clouds and dark matter…
hep-ph2023★ 34 cited
Superradiant axion clouds around asteroid-mass primordial black holes
Nuno P. Branco, Ricardo Z. Ferreira, João G. Rosa
We analyze the dynamics and observational signatures of axion clouds formed via the superradiant instability around primordial black holes, focusing on the mass range $10^{14}-10^{…