Constraints on primordial black holes as dark matter candidates from capture by neutron stars

  title={Constraints on primordial black holes as dark matter candidates from capture by neutron stars},
  author={F{\'a}bio Capela and M. S. Pshirkov and P. Tinyakov},
  journal={Physical Review D},
We investigate constraints on primordial black holes (PBHs) as dark matter candidates that arise from their capture by neutron stars (NSs). If a PBH is captured by a NS, the star is accreted onto the PBH and gets destroyed in a very short time. Thus, mere observations of NSs put limits on the abundance of PBHs. High DM densities and low velocities are required to constrain the fraction of PBHs in DM. Such conditions may be realized in the cores of globular clusters if the latter are of a… 

Figures from this paper

Primordial Black Holes as Dark Matter: Converting Constraints from Monochromatic to Extended Mass Distributions
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
Lyman-α Forest Constraints on Primordial Black Holes as Dark Matter.
New limits on the PBH abundance are presented, from a comprehensive analysis of high-resolution high-redshift Lyman-α forest data, and predictions to nonmonochromatic PBH mass distributions are extended, ruling out large regions of the parameter space for some of the most viable PBH extended mass functions.
Microlensing constraints on primordial black holes with Subaru/HSC Andromeda observations
Primordial black holes (PBHs) have long been suggested as a viable candidate for the elusive dark matter. The abundance of such PBHs has been constrained using a number of astrophysical observations,
Cosmological constraints on primordial black holes
Primordial Black Holes(PBH) may have formed from collapse of high-density primordial fluctuations in the early Universe. Interest for PBH has been stirred anew by the LIGO detection of gravitational
Revisiting primordial black hole capture into neutron stars
Primordial black holes (PBH), produced through a variety of processes in the early universe, could fill galactic halos accounting for a fraction or the totality of the dark matter. In particular, PBH
Constraints on primordial black holes
The constraints on the fraction of the Universe that may have gone into primordial black holes (PBHs) over the mass range 10−5 to 1050 g are updated and even if PBHs make a small contribution to the DM, they could play an important cosmological role and provide a unique probe of the early Universe.
Primordial black holes as a dark matter candidate
The detection of gravitational waves from mergers of tens of Solar mass black hole binaries has led to a surge in interest in Primordial Black Holes (PBHs) as a dark matter candidate. We aim to
Constraining the primordial black hole abundance with 21-cm cosmology
The discoveries of a number of binary black hole mergers by LIGO and VIRGO has reinvigorated the interest that primordial black holes (PBHs) of tens of solar masses could contribute non-negligibly to
Testing primordial black holes as dark matter with LISA
The idea that primordial black holes (PBHs) can comprise most of the dark matter of the universe has recently reacquired a lot of momentum. Observational constraints, however, rule out this


Structure and dynamics of globular clusters
An internal combustion engine, particularly a four cylinder four stroke cycle engine, has adjoining cylinders arranged in pairs with adjacent or siamesed intake ports and timed sequentially so that
OF THE DISCLOSURE A gas Spring for a drawing table which has a cylinder, a piston in the cylinder, and a piston rod projecting from the piston through one end wall of the cylinder, the other end wall
The classical theory of fields
The principle of relativity Relativistic mechanics Electromagnetic fields Electromagnetic waves The propagation of light The field of moving charges Radiation of electromagnetic waves Particle in a
“A and B”:
Direct fabrication of large micropatterned single crystals. p1205 21 Feb 2003. (news): Academy plucks best biophysicists from a sea of mediocrity. p994 14 Feb 2003.
and P
  • Tinyakov, Phys.Rev. D87, 023507
  • 2013
  • Ruffini, and S.-S. Xue, Nucl.Phys. A883, 1
  • 2012
ARA&A 44
  • 193
  • 2006
  • J. Lett. 566, L1
  • 2002
Galactic dynamics (Princeton
  • 1987