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Fig. 2


Shear pattern induced by an ensemble of 4, 8, 16, and 32 NFW halos forming an elongated structure that resembles an intracluster filament located at z = 0.55. The haloes have random masses ranging from 0 to a fixed upper limit of 1015  M/h, 5 × 1014  M/h, 2.5 × 1014  M/h and 1.25 × 1014  M/h, respectively, to keep the total mass of the structure in different panels fixed. The shear sampling is analoguous to the one typical for weak-lensing observations with a source number density of ns = 15 arcmin-2. These toy models illustrate the two regimes in the shear pattern caused by elongated structures, i.e. an alignment tangential to the center of the structure at large radii and the alignment orthogonal to the filament’s major axis. The two regimes are separated by an area of vanishing shear.

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