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High-resolution Spectroscopic Detection of TiO and a Stratosphere in the Day-side of WASP-33b

  • Authors: Stevanus K. Nugroho, Hajime Kawahara, Kento Masuda, Teruyuki Hirano, Takayuki Kotani, and Akito Tajitsu

2017 The Astronomical Journal 154 221.

  • Provider: AAS Journals

Caption: Figure 4.

WASP-33b spectrum model using a full inversion (FI) and no inversion (NI) of the T/P profile. The left panel shows the WASP-33b model spectrum for both FI-spec and NI-spec. The color shade represents the wavelength range of the observed order; blue and orange represent the wavelength range in the blue and red CCDs, respectively. The vertical axis shows the planet to star flux contrast in the level of 10−3. The middle panel shows the weight function along the wavelength for the pressure range considered. The right panel shows our adopted temperature profile for the WASP-33b atmosphere.

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