Abell clusters as a research area focus on the study of galaxy clusters originally cataloged by George O. Abell, emphasizing their statistical properties, spatial distribution, and role in large-scale structure and cosmology. Work in this field includes using Abell cluster samples to constrain cosmological parameters via cluster abundance, richness, and mass functions, investigating biasing and clustering through two-point correlation functions, and probing dark matter via X-ray emission, gravitational lensing, and galaxy dynamics. The research also addresses selection effects and completeness of the Abell catalog and its extensions, integrating multiwavelength observations with numerical simulations.
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