Inferring the dark matter splashback radius from cluster gas and observable profiles in the FLAMINGO simulations

Towler, Imogen; Kay, Scott T; Schaye, Joop; Kugel, Roi; Schaller, Matthieu; Braspenning, Joey; Elbers, Willem; Frenk, Carlos S; Kwan, Juliana; Salcido, Jaime; van Daalen, Marcel P; Vandenbroucke, Bert; Altamura, Edoardo

doi:10.1093/mnras/stae654

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We update the publicly available weak lensing shear measurement algorithm pyRRG for the JWST, and apply it to UNCOVER DR1 imaging of galaxy cluster Abell 2744. At short wavelengths (⁠ m), shear measurements are consistent between independent observa... Read More about Weak gravitational lensing measurements of Abell 2744 using JWST and shear measurement algorithm pyRRG-JWST.

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Inferring the dark matter splashback radius from cluster gas and observable profiles in the FLAMINGO simulations (2024)
Journal Article
Towler, I., Kay, S. T., Schaye, J., Kugel, R., Schaller, M., Braspenning, J., …Altamura, E. (2024). Inferring the dark matter splashback radius from cluster gas and observable profiles in the FLAMINGO simulations. Monthly Notices of the Royal Astronomical Society, 529(3), 2017-2031. https://doi.org/10.1093/mnras/stae654

The splashback radius, coinciding with the minimum in the dark matter radial density gradient, is thought to be a universal definition of the edge of a dark matter halo. Observational methods to detect it have traced the dark matter using weak gravit... Read More about Inferring the dark matter splashback radius from cluster gas and observable profiles in the FLAMINGO simulations.