Extended Data Fig. 4: Position and brightness anomalies computed using two approaches.
From: Einstein rings modulated by wavelike dark matter from anomalies in gravitationally lensed images
Probability distribution in a, position and b, brightness anomalies generated by: (i) imprinting 75 different GRF realisations having λdB = 180 pc onto the ϱDM lens of Fig. 2 to create a suite of ψDM lenses, and then generating multiply lensed images for each ψDM lens by placing the source at a fixed location (dashed curves); versus (ii) imprinting a single GRF realisation having also λdB = 180 pc onto the ϱDM halo, and generating multiply lensed images by placing the source at seventy-five different locations within the black rectangle shown in Extended Data Fig. 3 (solid curves). Blue curves are for pure ψDM halos, whereas red curves are for ψDM halos having density modulations damped by 50% to include a baryonic component. Although having similar medians, the second approach yields slightly elevated tails toward higher values.
