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Heat Reveals What Clouds Conceal: Global Carbon and Longitudinally Asymmetric Chemistry on LTT 9779 b

  • Authors: Reza Ashtari, Sean Collins, Jared Splinter, Kevin B. Stevenson, Vivien Parmentier, Jonathan Brande, Suman Saha, Sarah Stamer, Ian J. M. Crossfield, James S. Jenkins, K. Angelique Kahle, Joshua D. Lothringer, Nishil Mehta, Nicolas B. Cowan, Diana Dragomir, Laura Kreidberg, Mercedes López-Morales, Thomas M. Evans-Soma, Emma Esparza-Borges, Megan Weiner Mansfield, Hayley Beltz, Tansu Daylan, Olivia Venot, Jason Pero, Xi Zhang

Reza Ashtari et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure A5.

Comparison of the phase-resolved emission spectra for the Eureka! data reduction (v1) and the exoTEDRF + Eureka! reduction (v2). All pairs of primary and secondary spectra agree well (﹩{\chi }_{\nu }^{2}\lt 1﹩), with the nightside flux showing signs of possible biasing due to the required use of Eureka!’s force_positivity feature, forcing nonnegative flux, as discussed in Section 2.4.

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