Direct characterization of young giant exoplanets at high spectral resolution by coupling SPHERE and CRIRES+

Studies of atmospheres of directly imaged exoplanets with high-resolution spectrographs have shown that their characterization is predominantly limited by noise on the stellar halo at the location of the studied exoplanet. An instrumental combination …

Retrieving scattering clouds and disequilibrium chemistry in the atmosphere of HR 8799e

*Context*. Clouds are ubiquitous in exoplanet atmospheres and they represent a challenge for the model interpretation of their spectra. When generating a large number of model spectra, complex cloud models often prove too costly numerically, whereas …


The exoGravity Large Program uses GRAVITY on the VLTI to study the astrometry and atmospheres of known directly imaged extrasolar planets.


Installing an Adaptive Optics instrument based around a Pyramid Wavefront Sensor at the T152 at Observatoire de Haute Provence.

Bringing high-spectral resolution to VLT/SPHERE with a fibre coupling to VLT/CRIRES+

Atmospheric composition provides essential markers of the most fundamental properties of giant exoplanets, such as their formation mechanism or internal structure. New-generation exoplanet imagers, like VLT/SPHERE or Gemini/GPI, have been designed to …


Combining high contrast imaging with high dispersion spectroscopy


The Multi-Site All-Sky CAmeRA searches for transiting exoplanets around the brightest stars in the sky.

The Multi-site All-Sky CAmeRA (MASCARA)-Finding transiting exoplanets around bright (mV < 8) stars

This paper describes the design, operations, and performance of the Multi-site All-Sky CAmeRA (MASCARA). Its primary goal is to find new exoplanets transiting bright stars, $4

On-sky performance analysis of the vector apodizing phase plate coronagraph on MagAO/Clio2

We report on the performance of a vector apodizing phase plate coronagraph that operates over a wavelength range of 2–5 μm and is installed in MagAO/Clio2 at the 6.5 m Magellan Clay telescope at Las Campanas Observatory, Chile. The coronagraph …

Performance characterization of a broadband vector Apodizing Phase Plate coronagraph

One of the main challenges for the direct imaging of planets around nearby stars is the suppression of the diffracted halo from the primary star. Coronagraphs are angular filters that suppress this diffracted halo. The Apodizing Phase Plate …