Modeling the Impact of Starspot Inhomogeneity on Spectroscopic Retrievals of Directly-Imaged Planets

arXiv:2607.11728 · astro-ph.EP, astro-ph.IM · Submitted 2026-07-13 · Read on arXiv

Alex R. Howe, Natasha Latouf, Christopher C. Stark, Avi M. Mandel, Veselin Kostov

astro-ph.EP, astro-ph.IM

Submitted: 2026-07-13

Comments: 20 pages, 5 figures, 3 tables, accepted to JATIS

Code: https://github.com/alexrhowe/ExoVista

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Abundance — 13× in this paper · explained in 1 episode
• Degeneracy — 8× in this paper · explained in 3 episodes
• Habitable Worlds Observatory — 4× in this paper
• Accuracy — 3× in this paper · explained in 1 episode
• Transmission spectroscopy — 2× in this paper · explained in 2 episodes
• Alignment — 1× in this paper · explained in 1 episode
• Core — 1× in this paper · explained in 2 episodes
• James Webb Space Telescope — 1× in this paper
• Probabilistic Forecasting — 1× in this paper · explained in 3 episodes

Sources

• The Stagger-grid: A grid of 3D stellar atmosphere models - VI. Surface appearance of stellar granulation
• The LUVOIR Mission Concept Study Final Report

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