H− opacity and water dissociation in the dayside atmosphere of the very hot gas giant WASP-18b
We present one of the most precise emission spectra of an exoplanet observed so far. We combine five secondary eclipses of the hot Jupiter WASP-18b (T day ~ 2900 K) that we secured between 1.1 and 1.7 μm with the Wide Field Camera 3 instrument on board the Hubble Space Telescope. Our extracted spect...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal article |
| Published: |
American Astronomical Society
2018
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