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Substructures within Substructures in the Complex Postmerging System A514 Unveiled by High-resolution Magellan/Megacam Weak Lensing

  • Authors: Eunmo Ahn, M. James Jee, Wonki Lee, Hyungjin Joo, John ZuHone

Eunmo Ahn et al 2024 The Astrophysical Journal 973 .

  • Provider: AAS Journals

Caption: Figure 4.

Convergence contours of the A514 field over a Magellan/Megacam color-composite image. The contour levels represent statistical significance (see Section 5.1). On a large scale, A514 is comprised of two subclusters: A514NW and A514SE. A514NW (A514SE) is further resolved into NWE and NWW (SEN and SES). All four mass peaks, whose significances range from 3.3σ to 4.7σ, are centered on the brightest galaxies. The mass clump denoted as WL J0447.7–2020 is a background cluster detected at the 6.1σ level.

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