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Evidence for an Extended Hydrogen Outflow on WASP-12 b

  • Authors: Morgan Saidel, Shreyas Vissapragada, Heather A. Knutson, Aaron Householder, Morgan MacLeod, Adam Jensen, Howard Isaacson, Judah Van Zandt, Fei Dai

Morgan Saidel et al 2026 The Astronomical Journal 172 .

  • Provider: AAS Journals

Caption: Figure 6.

Left: example stellar spectrum of WASP-12. Vertical lines indicate wavelengths of stellar absorption lines. Middle: excess absorption spectra of WASP-12 b, in percent, in the stellar rest frame as a function of time and wavelength. Right: representative equivalent width of known stellar Fe I absorption lines (gray and purple points) as a function of time. Black points track the Hα equivalent width in order 9.

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