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Tesi etd-10042021-155645


Tipo di tesi
Tesi di laurea magistrale
Autore
MANZONI, DANIELE
URN
etd-10042021-155645
Titolo
Near Infrared Background from Primordial Black Holes
Dipartimento
FISICA
Corso di studi
FISICA
Relatori
relatore Prof. Ferrara, Andrea
correlatore Prof.ssa Gallerani, Simona
tutor Prof. Grasso, Dario
Parole chiave
  • PBH accretion
  • LIBRAE
  • near infrared background
  • dark matter
  • primordial balck holes
Data inizio appello
25/10/2021
Consultabilità
Non consultabile
Data di rilascio
25/10/2091
Riassunto
We computed the intensity and the angular power spectrum of NIRB produced by PBHs, considering two different accretion models: the Bondi-Hoyle-Lyttleton (BHL) and the Ali-Haimoud/Kamionkowski (AK) accretion models. Comparing our results with available observational data we derived constraints on the fraction of DM-PBHs from the intensity and the angular power spectrum of NIRB, assuming BHL accretion. An upper limit on was also derived from the NIRB intensity in the AK model. Our constraints are in agreement with present constraints, although in our model radiation from PBHs exceeds observational upper limits of the soft X-ray background.
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