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JWST TRAPPIST-1 e/b Program: Motivation and First Observations

  • Authors: Natalie H. Allen, Néstor Espinoza, V. A. Boehm, Caleb I. Cañas, Kevin B. Stevenson, Nikole K. Lewis, Ryan J. MacDonald, Brett M. Morris, Eric Agol, Knicole Colón, Hannah Diamond-Lowe, Ana Glidden, Amélie Gressier, Jingcheng Huang, Zifan Lin, Douglas Long, Dana R. Louie, Meredith A. MacGregor, Laurent Pueyo, Benjamin V. Rackham, Sukrit Ranjan, Sara Seager, Guadalupe Tovar Mendoza, Jeff A. Valenti, Daniel Valentine, Roeland P. van der Marel, Hannah R. Wakeford

Natalie H. Allen et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 4.

Relative transmission spectrum ratio of TRAPPIST-1 e with TRAPPIST-1 b, for observation 3 (left) and observation 15 (right). The relative transmission spectrum ratio for observation 1 is not shown due to the large error bars in the TRAPPIST-1 e spectrum from this observation due to the large flare. The multiple reductions show close agreement for the most part, though differences in the estimated error bar sizes due to a combination of the number of free parameters, method of systematics removal, and included integrations for each reduction can be seen.

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