Preparing for low surface brightness science with the Vera C. Rubin Observatory: a comparison of observable and simulated intracluster light fractions

ABSTRACT Intracluster light (ICL) provides an important record of the interactions galaxy clusters have undergone. However, we are limited in our understanding by our measurement methods. To address this, we measure the fraction of cluster light that is held in the Brightest Cluster Galaxy and ICL (...

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Published in:Monthly notices of the Royal Astronomical Society 2024-01, Vol.528 (1), p.771-795
Main Authors: Brough, Sarah, Ahad, Syeda Lammim, Bahé, Yannick M, Ellien, Amaël, Gonzalez, Anthony H, Jiménez-Teja, Yolanda, Kimmig, Lucas C, Martin, Garreth, Martínez-Lombilla, Cristina, Montes, Mireia, Pillepich, Annalisa, Ragusa, Rossella, Remus, Rhea-Silvia, Collins, Chris A, Knapen, Johan H, Mihos, J Christopher
Format: Article
Language:English
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Summary:ABSTRACT Intracluster light (ICL) provides an important record of the interactions galaxy clusters have undergone. However, we are limited in our understanding by our measurement methods. To address this, we measure the fraction of cluster light that is held in the Brightest Cluster Galaxy and ICL (BCG+ICL fraction) and the ICL alone (ICL fraction) using observational methods (surface brightness threshold-SB, non-parametric measure-NP, composite models-CM, and multi-galaxy fitting-MGF) and new approaches under development (wavelet decomposition-WD) applied to mock images of 61 galaxy clusters (14
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/stad3810