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Recolector de Ciencia Abierta, RECOLECTA
Bachelor thesis . 2024
License: CC BY NC ND
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UCrea
Bachelor thesis . 2024
License: CC BY NC ND
Data sources: UCrea
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Primordial black holes in galaxies

Agujeros negros primordiales en galaxias
Authors: Isla Mazón, Daniel;

Primordial black holes in galaxies

Abstract

Aunque la materia oscura en las galaxias podría estar compuesta por partículas elementales diferentes de las que forman la materia ordinaria y que estarían distribuidas de manera homogénea (aún no detectadas), los agujeros negros primordiales (PBHs), formados después del Big Bang inicial, también son candidatos para representar una cierta fracción de la masa en las galaxias. En este proyecto, consideramos diferentes poblaciones de PBHs en la galaxia lente principal del cuásar FBQ 0951+2635, que presenta dos imágenes debido al efecto lente gravitacional. La variabilidad observada por efecto de microlente de las imágenes del cuásar es comparada con la variabilidad generada por estrellas y PBHs en la galaxia lente a un redshift z ∼ 0.3, obteniendo importantes restricciones sobre las posibles poblaciones de PBHs en la galaxia de tipo temprano no local que actúa como lente gravitacional.

Although dark matter in galaxies may consist of elementary particles different from those that conform ordinary matter and that would be smoothly distributed (still undetected), primordial black holes (PBHs) formed after the initial Big Bang are also candidates to account for a certain fraction of mass in galaxies. In this project, we consider different populations of PBHs in the main lens galaxy of the doubly imaged gravitationally lensed quasar FBQ 0951+2635. The observed microlensing variability of the quasar images is compared with the microlensing variability generated by stars and PBHs in the lens galaxy at redshift z ∼ 0.3, obtaining strong constraints on possible PBH populations in the non-local early-type galaxy acting as a gravitational lens.

Grado en Física

Country
Spain
Related Organizations
Keywords

Galaxias, Microlente, Cuásares, Gravitational lensing, Dark matter, Primordial black holes, Agujeros negros primordiales, Lente gravitacional, Materia oscura, Galaxies, Halos, Quasars

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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