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Title: Limits on the Mass and Abundance of Primordial Black Holes from Quasar Gravitational Microlensing

Abstract

The idea that dark matter can be made of intermediate-mass primordial black holes (PBHs) in the 10 M {sub ⊙} ≲ M ≲ 200 M {sub ⊙} range has recently been reconsidered, particularly in the light of the detection of gravitational waves by the LIGO experiment. The existence of even a small fraction of dark matter in black holes should nevertheless result in noticeable quasar gravitational microlensing. Quasar microlensing is sensitive to any type of compact objects in the lens galaxy, to their abundance, and to their mass. We have analyzed optical and X-ray microlensing data from 24 gravitationally lensed quasars to estimate the abundance of compact objects in a very wide range of masses. We conclude that the fraction of mass in black holes or any type of compact objects is negligible outside of the 0.05 M {sub ⊙} ≲ M ≲ 0.45 M {sub ⊙} mass range and that it amounts to 20% ± 5% of the total matter, in agreement with the expected masses and abundances of the stellar component. Consequently, the existence of a significant population of intermediate-mass PBHs appears to be inconsistent with current microlensing observations. Therefore, primordial massive black holes are a very unlikelymore » source of the gravitational radiation detected by LIGO.« less

Authors:
 [1]; ;  [2]; ;  [3]
  1. Instituto de Astrofísica de Canarias, Vía Láctea S/N, La Laguna E-38200, Tenerife (Spain)
  2. Departamento de Física Teórica y del Cosmos, Universidad de Granada, Campus de Fuentenueva, E-18071 Granada (Spain)
  3. Departamento de Astronomía y Astrofísica, Universidad de Valencia, E-46100 Burjassot, Valencia (Spain)
Publication Date:
OSTI Identifier:
22654540
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 836; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ABUNDANCE; BLACK HOLES; DETECTION; GALAXIES; GRAVITATIONAL LENSES; GRAVITATIONAL RADIATION; GRAVITATIONAL WAVES; MASS; NONLUMINOUS MATTER; QUASARS; VISIBLE RADIATION; X RADIATION

Citation Formats

Mediavilla, E., Jiménez-Vicente, J., Calderón-Infante, J., Muñoz, J. A., and Vives-Arias, H. Limits on the Mass and Abundance of Primordial Black Holes from Quasar Gravitational Microlensing. United States: N. p., 2017. Web. doi:10.3847/2041-8213/AA5DAB.
Mediavilla, E., Jiménez-Vicente, J., Calderón-Infante, J., Muñoz, J. A., & Vives-Arias, H. Limits on the Mass and Abundance of Primordial Black Holes from Quasar Gravitational Microlensing. United States. doi:10.3847/2041-8213/AA5DAB.
Mediavilla, E., Jiménez-Vicente, J., Calderón-Infante, J., Muñoz, J. A., and Vives-Arias, H. Mon . "Limits on the Mass and Abundance of Primordial Black Holes from Quasar Gravitational Microlensing". United States. doi:10.3847/2041-8213/AA5DAB.
@article{osti_22654540,
title = {Limits on the Mass and Abundance of Primordial Black Holes from Quasar Gravitational Microlensing},
author = {Mediavilla, E. and Jiménez-Vicente, J. and Calderón-Infante, J. and Muñoz, J. A. and Vives-Arias, H.},
abstractNote = {The idea that dark matter can be made of intermediate-mass primordial black holes (PBHs) in the 10 M {sub ⊙} ≲ M ≲ 200 M {sub ⊙} range has recently been reconsidered, particularly in the light of the detection of gravitational waves by the LIGO experiment. The existence of even a small fraction of dark matter in black holes should nevertheless result in noticeable quasar gravitational microlensing. Quasar microlensing is sensitive to any type of compact objects in the lens galaxy, to their abundance, and to their mass. We have analyzed optical and X-ray microlensing data from 24 gravitationally lensed quasars to estimate the abundance of compact objects in a very wide range of masses. We conclude that the fraction of mass in black holes or any type of compact objects is negligible outside of the 0.05 M {sub ⊙} ≲ M ≲ 0.45 M {sub ⊙} mass range and that it amounts to 20% ± 5% of the total matter, in agreement with the expected masses and abundances of the stellar component. Consequently, the existence of a significant population of intermediate-mass PBHs appears to be inconsistent with current microlensing observations. Therefore, primordial massive black holes are a very unlikely source of the gravitational radiation detected by LIGO.},
doi = {10.3847/2041-8213/AA5DAB},
journal = {Astrophysical Journal Letters},
number = 2,
volume = 836,
place = {United States},
year = {Mon Feb 20 00:00:00 EST 2017},
month = {Mon Feb 20 00:00:00 EST 2017}
}