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Artículo

The influence of Hickson-like compact group environment on galaxy luminosities

Zandivarez, Arnaldo ArielIcon ; Diaz, Maria EugeniaIcon ; Taverna, Maria AntonelaIcon
Fecha de publicación: 07/2022
Editorial: Oxford University Press
Revista: Monthly Notices of the Royal Astronomical Society
ISSN: 0035-8711
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Astronomía

Resumen

Compact groups of galaxies are devised as extreme environments where interactions may drive galaxy evolution. In this work, we analysed whether the luminosities of galaxies inhabiting compact groups differ from those of galaxies in loose galaxy groups. We computed the luminosity functions of galaxy populations inhabiting a new sample of 1412 Hickson-like compact groups of galaxies identified in the Sloan Digital Sky Survey Data Release 16. We observed a characteristic absolute magnitude for galaxies in compact groups brighter than that observed in the field or loose galaxy systems. We also observed a deficiency of faint galaxies in compact groups in comparison with loose systems. Our analysis showed that the brightening is mainly due to galaxies inhabiting the more massive compact groups. In contrast to what is observed in loose systems, where only the luminosities of Red (and Early) galaxies show a dependency with group mass, luminosities of Red and Blue (also Early and Late) galaxies in compact groups are affected similarly as a function of group virial mass. When using Hubble types, we observed that elliptical galaxies in compact groups are the brightest galaxy population, and groups dominated by an elliptical galaxy also display the brightest luminosities in comparison with those dominated by spiral galaxies. Moreover, we show that the general luminosity trends can be reproduced using a mock catalogue obtained from a semi-analytical model of galaxy formation. These results suggest that the inner extreme environment in compact groups prompts a different evolutionary history for their galaxies.
Palabras clave: CATALOGUES , GALAXIES: GROUPS: GENERAL , GALAXIES: LUMINOSITY FUNCTION, MASS FUNCTION , METHODS: DATA ANALYSIS
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/202715
URL: https://academic.oup.com/mnras/article-abstract/514/1/1231/6588053
DOI: http://dx.doi.org/10.1093/mnras/stac1374
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Articulos de INST.DE ASTRONOMIA TEORICA Y EXPERIMENTAL
Citación
Zandivarez, Arnaldo Ariel; Diaz, Maria Eugenia; Taverna, Maria Antonela; The influence of Hickson-like compact group environment on galaxy luminosities; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 514; 1; 7-2022; 1231-1248
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  • Datos de investigación Catálogo de grupos compactos de galaxias identificados en el relevamiento SDSS DR16
    Zandivarez, Arnaldo Ariel Diaz, Maria Eugenia Taverna, Maria Antonela (2025)
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