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Grant support
T.L. receives financial support from CNRS-IN2P3. T.L. also acknowledges support from the European Unions Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement Nos. 690575 and 674896; beside recurrent institutional funding by CNRS-IN2P3 and the University of Montpellier. The work of J.S. has been supported in part by European Research Council (ERC) Project No. 267117 (DARK) hosted by Universite Pierre & Marie Curie-Paris VI, Sorbonne Universites.
Analysis of institutional authors
Lacroix, ThomasCorresponding AuthorIntermediate-mass Black Holes and Dark Matter at the Galactic Center
Publicated to:Astrophysical Journal Letters. 853 (1): - 2018-01-20 853(1), DOI: 10.3847/2041-8213/aaa775
Authors: Lacroix, Thomas; Silk, Joseph;
Affiliations
Abstract
Could there be a large population of intermediate-mass black holes (IMBHs) formed in the early universe? Whether primordial or formed in Population III, these are likely to be very subdominant compared to the dark matter density, but could seed early dwarf galaxy/globular cluster and supermassive black hole formation. Via survival of dark matter density spikes, we show here that a centrally concentrated relic population of IMBHs, along with ambient dark matter, could account for the Fermi gamma-ray excess in the Galactic center because of dark matter particle annihilations.
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Quality index
Bibliometric impact. Analysis of the contribution and dissemination channel
The work has been published in the journal Astrophysical Journal Letters 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, 2018, it was in position 6/69, thus managing to position itself as a Q1 (Primer Cuartil), in the category Astronomy & Astrophysics. Notably, the journal is positioned above the 90th percentile.
From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 4.5, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jul 2025)
Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-27, the following number of citations:
- WoS: 10
- Scopus: 11
Impact and social visibility
Leadership analysis of institutional authors
This work has been carried out with international collaboration, specifically with researchers from: France; Timor-Leste; United Kingdom.
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 (LACROIX, THOMAS) .
the author responsible for correspondence tasks has been LACROIX, THOMAS.