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Analysis of institutional authors

Siles, Jose Francisco NuñoAuthorGarcia-Bellido, JuanCorresponding Author

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February 3, 2025
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Article

Primordial black hole clusters, phenomenology & implications

Publicated to: Physics Of The Dark Universe. 47 101789- - 2025-02-01 47(), DOI: 10.1016/j.dark.2024.101789

Authors:

Siles, JFN; García-Bellido, J
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Affiliations

Univ Autonoma Madrid, Inst Fis Teor UAM CSIC, Madrid 28049, Spain - Author

Abstract

We present direct N-body simulations of black-hole-only clusters with up to 2 & sdot; 104 compact objects, zero natal spin and no primordial binaries as predicted by various primordial black hole (PBH) Dark Matter models. The clusters' evolution is com- puted using NBODY6++GPU, including the effects of the tidal field of the galaxy, the kicks of black hole mergers and orbit-averaged energy loss by gravitational radia- tion of binaries. We investigate clusters with four initial mass distributions, three of which attempt to model a generic PBH scenario using a lognormal mass distribu- tion and a fourth one that can be directly linked to a monochromatic PBH scenario when accretion is considered. More specifically, we dive into the clusters' internal dy- namics, describing their expansion and evaporation, along with the resultant binary black hole mergers. We also compare several simulations with and without black hole merger kicks and find modelling implications for the probability of hierarchical mergers.
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Keywords

Binary black holesBlack hole dynamicBlack hole dynamicsPrimordial black holes

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Physics of the Dark Universe due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position 14/84, thus managing to position itself as a Q1 (Primer Cuartil), in the category Astronomy & Astrophysics.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-05:

  • WoS: 3
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-05:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 5 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://repositorio.uam.es/handle/10486/717360
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (NUÑO SILES, JOSE FRANCISCO) and Last Author (GARCIA-BELLIDO CAPDEVILA, JUAN).

the author responsible for correspondence tasks has been GARCIA-BELLIDO CAPDEVILA, JUAN.

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Awards linked to the item

AcknowledgementsWe would like to thank Rainer Spurzem and Manuel Arcca Sedda for their valu-able comments and suggestions during the drafting of this manuscript. The authors acknowledge the use of the publicly available codes: NBODY6++GPU and the use of the Hydra CPU cluster at the IFT, and the GPU cluster of the IFT Cosmology group, on which some of the numerical computations for this paper took place. They also acknowl-edge support from the research project PID2021-123012NB-C43 and the Spanish Research Agency (Agencia Estatal de Investigacion) through the Grant IFT Centro de Excelencia Severo Ochoa No CEX2020-001007-S. JFNS acknowledges sup-port from MCIN through Grant No PRE2020-092571.
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