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Supersolar Metallicity and Tentative Evidence for Photochemistry on WASP-96 b from JWST and Ground-based VLT Transmission Spectroscopy

  • Authors: Michael Radica, Jake Taylor, Yoav Rotman, Jasmina Blecic, Luis Welbanks, Eva-Maria Ahrer, Duncan Christie, Louis-Philippe Coulombe, Gillis Lowry, Matthew M. Murphy, Adina D. Feinstein, David Lafrenière, Ryan J. MacDonald, Nathan J. Mayne, Shang-Min Tsai, Maria Zamyatina

Michael Radica et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 9.

The differences between the exoTEDRF and NAMELESS NIRISS/SOSS spectra redwards of ∼1.75 μm can be attributed to the 1/f noise correction being performed at the integration vs. the group level (i.e., after vs. before ramp fitting). An alternate exoTEDRF reduction skipping the group level 1/f correction and implementing the same step at the integration level reproduces qualitatively the differences with the nominal spectrum seen with NAMELESS.

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