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A continuum from clear to cloudy hot-Jupiter exoplanets without primordial water depletion
David K. Sing, Jonathan J. Fortney, Nikolay Nikolov +18
Thousands of transiting exoplanets have been discovered, but spectral analysis of their atmospheres has so far been dominated by a small number of exoplanets and data spanning rela…
Exoplanet Transmission Spectroscopy using KMOS
Hannu Parviainen, Suzanne Aigrain, Niranjan Thatte +3
KMOS (K-Band Multi Object Spectrograph) is a novel integral field spectrograph installed in the VLT's ANTU unit. The instrument offers an ability to observe 24 2.8"2.8" sub…
A uniform analysis of HD209458b Spitzer/IRAC lightcurves with Gaussian process models
Thomas M. Evans, Suzanne Aigrain, Neale Gibson +4
We present an analysis of Spitzer/IRAC primary transit and secondary eclipse lightcurves measured for HD209458b, using Gaussian process models to marginalise over the intrapixel se…
Regaining the FORS: optical ground-based transmission spectroscopy of the exoplanet WASP-19b with VLT+FORS2
E. Sedaghati, H. M. J. Boffin, Sz. Csizmadia +4
In the past few years, the study of exoplanets has evolved from being pure discovery, then being more exploratory in nature and finally becoming very quantitative. In particular, t…
Making FORS2 fit for exoplanet observations (again)
H. M. J. Boffin, G. Blanchard, O. A. Gonzalez +10
For about three years, it was known that precision spectrophotometry with FORS2 suffered from systematic errors that made quantitative observations of planetary transits impossible…