Cool Cores in Clusters of Galaxies in the Dark Energy Survey

K. Graham; J. O'Donnell; M. M. Silverstein; O. Eiger; T. E. Jeltema; D. L. Hollowood; D. Cross; S. Everett; P. Giles; J. Jobel; D. Laubner; A. McDaniel; A. K. Romer; A. Swart; M. Aguena; S. Allam; O. Alves; D. Brooks; M. Carrasco Kind; J. Carretero; M. Costanzi; L. N. da Costa; M. E. S. Pereira; J. De Vicente; S. Desai; J. P. Dietrich; P. Doel; I. Ferrero; J. Frieman; J. Garcia-Bellido; D. Gruen; R. A. Gruendl; S. R. Hinton; K. Honscheid; D. J. James; K. Kuehn; N. Kuropatkin; O. Lahav; J. L. Marshall; P. Melchior; J. Mena-Fernandez; F. Menanteau; R. Miquel; R. L. C. Ogando; A. Palmese; A. Pieres; A. A. Plazas Malagon; K. Reil; M. Rodriguez-Monroy; E. Sanchez; V. Scarpine; M. Schubnell; M. Smith; E. Suchyta; G. Tarle; C. To; N. Weaverdyck

arXiv · 2305.02365

Cool Cores in Clusters of Galaxies in the Dark Energy Survey

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Abstract

We search for the presence of cool cores in optically-selected galaxy clusters from the Dark Energy Survey (DES) and investigate their prevalence as a function of redshift and cluster richness. Clusters were selected from the redMaPPer analysis of three years of DES observations that have archival Chandra X-ray observations, giving a sample of 99 clusters with a redshift range of $0.11 < z < 0.87$ and a richness range of $25 < \lambda < 207$. Using the X-ray data, the core temperature was compared to the outer temperature to identify clusters where the core temperature is a factor of 0.7 or less than the outer temperature. We found a cool core fraction of approximately 20% with no significant trend in the cool core fraction with either redshift or richness.

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K. Graham, J. O'Donnell, M. M. Silverstein, O. Eiger, T. E. Jeltema, D. L. Hollowood, D. Cross, S. Everett, P. Giles, J. Jobel, D. Laubner, A. McDaniel, A. K. Romer, A. Swart, M. Aguena, S. Allam, O. Alves, D. Brooks, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. da Costa, M. E. S. Pereira, J. De Vicente, S. Desai, J. P. Dietrich, P. Doel, I. Ferrero, J. Frieman, J. Garcia-Bellido, D. Gruen, R. A. Gruendl, S. R. Hinton, K. Honscheid, D. J. James, K. Kuehn, N. Kuropatkin, O. Lahav, J. L. Marshall, P. Melchior, J. Mena-Fernandez, F. Menanteau, R. Miquel, R. L. C. Ogando, A. Palmese, A. Pieres, A. A. Plazas Malagon, K. Reil, M. Rodriguez-Monroy, E. Sanchez, V. Scarpine, M. Schubnell, M. Smith, E. Suchyta, G. Tarle, C. To, N. Weaverdyck. 2023-05-03. Cool Cores in Clusters of Galaxies in the Dark Energy Survey. https://arxiv.org/abs/2305.02365

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