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Worlds Next Door. III. Indirect Evidence for Enhanced Atmospheric Metallicity and/or the Presence of Water Clouds in the Nearest Jupiter-analog ϵ Eri b

Authors: Aniket Sanghi, James Mang, Jorge Llop-Sayson, Eric E. Mamajek, William Thompson, Ankan Sur, Charles Beichman, Geoffrey Bryden, András Gáspár, Jarron Leisenring, Dimitri Mawet, Caroline V. Morley, Jean-Baptiste Ruffio, Schuyler G. Wolff, Marie Ygouf

Aniket Sanghi et al 2026 The Astronomical Journal 171 .

Provider: AAS Journals

Caption: Figure 11.

Left: the minimum detectable visible reflecting area (A_{V R}) as a function of albedo for a ring around ϵ Eri b based on the sensitivity in the F210M filter. A_{V R} is expressed in terms of the area of Saturn’s ring system. The reflectivity of Saturn’s B ring at ≈2 μm (M. Ciarniello et al. 2019) is marked with a dashed line for reference. Right: required contrast to detect exorings of various visible reflecting area in the F070W, F090W, and F115W filters (albedo ≈0.6, R. Bowens-Rubin et al. 2025a).

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