2 papers
gr-qc2026
Hawking emission of massive vector fields by Kerr black holes
Marco CalzÃ, Miguel Faria, Yuber F. Perez-Gonzalez +1
We compute, for the first time, the Hawking emission spectrum of massive vector (Proca) fields by spinning Kerr black holes, determining the associated greybody factors and the res…
astro-ph.CO2025
Stupendously Large Primordial Black Holes from the QCD axion
Miguel Faria, Ricardo Z. Ferreira, Fabrizio Rompineve
The inflationary diffusion of (pseudo-)scalar fields with discrete symmetries can seed the formation of a gas of closed domain walls after inflation, when the distance between dege…