Search for He I airglow emission from the hot Jupiter τ Boo bY. Zhang, I. A. G. Snellen, P. Mollière, F. J. Alonso-Floriano, R. K. Webb, M. Brogi and A. WyttenbachA&A, 641 (2020) A161DOI: https://doi.org/10.1051/0004-6361/202038412