• Corpus ID: 252439198

Intrinsic correlations of galaxy sizes in a hydrodynamical cosmological simulation

@inproceedings{Johnston2022IntrinsicCO,
  title={Intrinsic correlations of galaxy sizes in a hydrodynamical cosmological simulation},
  author={Harry Johnston and Dana Sophia Westbeek and Sjoerd Weide and Nora Elisa Chisari and Yohan Dubois and Julien Devriendt and Christophe Pichon},
  year={2022}
}
Residuals between measured galactic radii and those predicted by the Fundamental Plane (FP) are possible tracers of weak lensing magnification. However, observations have shown these to be systematically correlated with the large-scale structure. We use the Horizon-AGN hydrodynamical cosmological simulation to analyse these intrinsic size correlations (ISCs) for both elliptical (early-type) and spiral (late-type) galaxies at 𝑧 = 0 . 06. We fit separate FPs to each sample, finding similarly… 

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