Direct images of protoplanets embedded in disks around infant stars provide the key to
understanding the formation of gas giant planets such as Jupiter. Using the Subaru …

Abstract We present JWST Early Release Science coronagraphic observations of the super-
Jupiter exoplanet, HIP 65426b, with the Near-Infrared Camera (NIRCam) from 2 to 5 μm …

" exoplanet" is a toolkit for probabilistic modeling of astronomical time series data, with a
focus on observations of exoplanets, using PyMC3 (Salvatier et al., 2016). PyMC3 is a …

We present K-band interferometric observations of the PDS 70 protoplanets along with their
host star using VLTI/GRAVITY. We obtained K-band spectra and 100 μas precision …

The detection of satellites around extrasolar planets, so called exomoons, remains a largely
unexplored territory. In this work, we study the potential of detecting these elusive objects …

We present an open-source Python package, Orbits from Radial Velocity, Absolute, and/or
Relative Astrometry (orvara), to fit Keplerian orbits to any combination of radial velocity …

Context. Methods used to detect giant exoplanets can be broadly divided into two
categories: indirect and direct. Indirect methods are more sensitive to planets with a small …

Aims. We aim to demonstrate that the presence and mass of an exoplanet can now be
effectively derived from the astrometry of another exoplanet. Methods. We combined …

The four directly imaged planets orbiting the star HR 8799 are an ideal laboratory to probe
atmospheric physics and formation models. We present more than a decade's worth of …

Aims. HD 206893 is a nearby debris disk star that hosts a previously identified brown dwarf
companion with an orbital separation of∼ 10 au. Long-term precise radial velocity (RV) …