TY - JOUR AU - Caballero, J. A. AU - Cortés Contreras, Miriam AU - Montes Gutiérrez, David PY - 2019 DO - 10.1051/0004-6361/201936396 SN - 0004-6361 UR - https://hdl.handle.net/20.500.14352/6140 T2 - Astronomy & Astrophysics AB - Ultra-hot Jupiters are emerging as a new class of exoplanets. Studying their chemical compositions and temperature structures will improve our understanding of their mass loss rate as well as their formation and evolution. We present the detection of... LA - eng PB - EDP Sciencies KW - Planet KW - Transit KW - Absorption KW - Exosphere KW - Mass TI - Ionized calcium in the atmospheres of two ultra-hot exoplanets WASP-33b and KELT-9b TY - journal article VL - 632 ER -