Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1475-7516/2018/01/004
Keywords
primordial black holes; dark matter theory
Funding
- Spanish MINECO under projects of ICCUB (Unidad de Excelencia Maria de Maeztu) [AYA2014-58747-P AEI/FEDER UE, MDM-2014-0369]
- Spanish MINECO [BES-2015-073372, BES-2015-071307]
- ESF
- People Programme (Marie Curie Actions) of the European Union H Programme under REA [706896]
- European Union's Horizon research and innovation programme (BePreSySe) [725327]
- Marie Curie Actions (MSCA) [706896] Funding Source: Marie Curie Actions (MSCA)
Ask authors/readers for more resources
The model in which Primordial Black Holes (PBHs) constitute a non-negligible fraction of the dark matter has (re) gained popularity after the first detections of binary black hole mergers. Most of the observational constraints to date have been derived assuming a single mass for all the PBHs, although some more recent works tried to generalize constraints to the case of extended mass functions. Here we derive a general methodology to obtain constraints for any PBH Extended Mass Distribution (EMD) and any observables in the desired mass range. Starting from those obtained for a monochromatic distribution, we convert them into constraints for EMDs by using an equivalent, effective mass M-eq that depends on the specific observable. We highlight how limits of validity of the PBH modelling affect the EMD parameter space. Finally, we present converted constraints on the total abundance of PBH from microlensing, stellar distribution in ultra-faint dwarf galaxies and CMB accretion for Lognormal and Power Law mass distributions, finding that EMD constraints are generally stronger than monochromatic ones.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available