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The SPACE Program. II. No Discernible Spectral Features in the Transmission Spectrum of the Sub-Neptune HD 191939 b Observed with HST/WFC3

  • Authors: Cyril Gapp, Lorena Acuña-Aguirre, Reza Ashtari, Mario Damiano, Thomas M. Evans-Soma, David J. Wilson, Kevin France, Laura Kreidberg, Drake Deming, Qiushi Chris Tian, Seth Redfield, Ian J.M. Crossfield, K. Angelique Kahle, Tansu Daylan, Kevin Heng, Bertram Bitsch, James S. Jenkins, Keivan G. Stassun, Antonio García Muñoz, Ludmila Carone

Cyril Gapp et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 10.

Light curves of HD 191939 A in the BVRI bands observed with the automated 24 inch telescope at Van Vleck Observatory, Wesleyan University. Binned daily photometry is shown with large, colored dots. Each error bar represents the standard deviation of the underlying individual exposures (small, gray dots) within a night. The shaded areas show the 1σ ranges of the binned photometry.

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