Transmission spectroscopy of MASCARA-1b with ESPRESSO: Challenges of overlapping orbital and Doppler tracks

@article{CasasayasBarris2022TransmissionSO,
  title={Transmission spectroscopy of MASCARA-1b with ESPRESSO: Challenges of overlapping orbital and Doppler tracks},
  author={N. Casasayas-Barris and F. Borsa and E. Pall'e and Romain Allart and Vincent Bourrier and J. I. Gonz'alez Hern'andez and Aurora Y. Kesseli and A. S'anchez-L'opez and Mar{\'i}a Rosa Zapatero Osorio and I. A. G. Snellen and J. Orell-Miquel and Monika Stangret and Emma Esparza-Borges and Cristophe Lovis and Matthew J. Hooton and M. Lend and A. M. S. Smith and Francesco Pepe and Rafael Rebolo and S. Cristiani and N. C. Santos and Vardan Adibekyan and Yann Alibert and E. Cristo and Olivier D. S. Demangeon and Pedro Figueira and P. Di Marcantonio and Carlos J. A. P. Martins and G. Micela and Julia V. Seidel and Thaiomara A. Silva and S{\'e}rgio G. Sousa and Alessandro Sozzetti and Alejandro Su'arez Mascareno and H. M. Tabernero},
  journal={Astronomy \& Astrophysics},
  year={2022}
}
Atmospheric studies at high spectral resolution have shown the presence of molecules, neutral and ionised metals, and hydrogen in the transmission spectrum of ultra-hot Jupiters, and have started to probe the dynamics of their atmospheres. We analyse the transmission spectrum of MASCARA-1b, one of the densest ultra-hot Jupiters orbiting a bright (V = 8.3) star. We focus on the Ca ii H&K, Na i doublet, Li i , H α and K i D1 spectral lines and on the cross-correlated Fe i , Fe ii , Ca i , Y i , V… 

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