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December 17, 2018
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The Three Hundred Project: The Influence of Environment on Simulated Galaxy Properties

Publicated to:ASTROPHYSICAL JOURNAL. 868 (2): - 2018-12-01 868(2), DOI: 10.3847/1538-4357/aae52e

Authors: Wang Y; Pearce F; Knebe A; Yepes G; Cui W; Power C; Arth A; Gottlöber S; De Petris M; Brown S; Feng L

Affiliations

Astrophysikalisches Institut Potsdam - Author
Ludwig-Maximilians-Universität München - Author
Max Planck Institut fur extraterrestrische Physik - Author
Sun Yat-Sen University - Author
Universidad Autónoma de Madrid - Author
Università degli studi di Roma la Sapienza - Author
University of Nottingham - Author
University of Western Australia - Author
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Abstract

© 2018. The American Astronomical Society. All rights reserved.. The relationship between galaxy properties and environment is a widely discussed topic within astrophysics. Here, we use galaxy samples from hydrodynamical resimulations to examine this relationship. We use the overdensity (δ 1) within a sphere around a galaxy to evaluate its environment. Then, the relations between galaxy properties, such as specific star formation rate (sSFR), fraction of star-forming galaxies, g-r color, and δ 1 are examined within three galactic samples formed from galaxies within large clusters, those in the vicinity of large clusters, and those in the field. We find tight environmental correlations for these galaxy properties. In brief, galaxies in denser environments tend to be redder and are more likely to be quenched; this is consistent with observations. We find that although the sSFR decreases with δ 1, this is mainly because galaxies with higher stellar mass reside in an environment with higher overdensity. At fixed overdensity, a galaxy's color is also independent of whether it lives within a cluster or within the field, but the relative fractions of the two samples varies dramatically with overdensity, and this drives an apparent evolution.

Keywords

Galaxies: clusters: generalGalaxies: evolutionMethods: numerical

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal ASTROPHYSICAL JOURNAL 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 12/69, thus managing to position itself as a Q1 (Primer Cuartil), in the category Astronomy & Astrophysics.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations from Scopus Elsevier, it yields a value for the Field-Weighted Citation Impact from the Scopus agency: 1.38, 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: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Field Citation Ratio (FCR) from Dimensions: 9.49 (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-09, the following number of citations:

  • WoS: 15
  • Scopus: 32

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 2025-07-09:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 26.
  • 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: 27 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 7.75.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Australia; China; Germany; Italy; United Kingdom.