Silicon in the dayside atmospheres of two ultra-hot Jupiters

@article{Cont2021SiliconIT,
  title={Silicon in the dayside atmospheres of two ultra-hot Jupiters},
  author={David Dei Cont and F. Yan and Ansgar Reiners and Lisa Nortmann and Karan Molaverdikhani and E. Pall{\'e} and Monika Stangret and T Henning and I. Ribas and Andreas Quirrenbach and Jos{\'e} Antonio Caballero and Mar{\'i}a Rosa Zapatero Osorio and Pedro J. Amado and Jes{\'u}s Aceituno and N. Casasayas-Barris and S. Czesla and A. Kaminski and M. L'opez-Puertas and David Montes and Juan Carlos Morales and Giuseppe Morello and Evangelos Nagel and A. S'anchez-L'opez and Elyar Sedaghati and Mathias Zechmeister},
  journal={Astronomy \& Astrophysics},
  year={2021}
}
Atmospheres of highly irradiated gas giant planets host a large variety of atomic and ionic species. Here we observe the thermal emission spectra of the two ultra-hot Jupiters WASP-33b and KELT-20b / MASCARA-2b in the near-infrared wavelength range with CARMENES. Via high-resolution Doppler spectroscopy, we searched for neutral silicon (Si) in their dayside atmospheres. We detect the Si spectral signature of both planets via cross-correlation with model spectra. Detection levels of 4.8 σ and 5… 

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Ground-based and Airborne Instrumentation for Astronomy III

Silicon in the dayside atmospheres of two ultra-hot Jupiters