5 papers
Probing Atmospheric Escape Through the Near-Infrared Helium Triplet
C. Farret Jentink, V. Bourrier, Y. Carteret
The most productive tracer of exoplanetary atmospheric escape is the measurement of excess absorption in the near-infrared metastable helium triplet during transits. Atmospheric es…
CORALIE radial-velocity search for companions around evolved stars (CASCADES) IV: New planetary systems around HD 87816, HD 94890, and HD 102888 and an update on HD 121056
E. Fontanet, S. Udry, D. Ségransan +25
With around 200 detections of exoplanets around giant stars to date, our knowledge of the population of exoplanets orbiting evolved hosts more massive than the Sun remains limited.…
Three Hot Jupiters transiting K-dwarfs with a significant heavy element mass
Y. G. C. Frensch, F. Bouchy, G. Lo Curto +50
Albeit at a lower frequency than around hotter stars, short-period gas giants around low-mass stars ( K) do exist, despite predictions from planetary populat…
High-resolution, high-efficiency narrowband spectroscopy with an s-p-phased holographic grating in double pass
Casper Farret Jentink, Francesco Pepe, Christophe Lovis +3
High-resolution spectroscopy (R>50,000) in astronomy typically uses echelle-type spectrographs, which excel for exoplanet detection via radial velocity but compromise throughput fo…
Vertical structure of an exoplanet's atmospheric jet stream
Julia V. Seidel, Bibiana Prinoth, Lorenzo Pino +21
Ultra-hot Jupiters, an extreme class of planets not found in our solar system, provide a unique window into atmospheric processes. The extreme temperature contrasts between their d…