Context. The wind-driven halo is a feature that is observed in images that were delivered by
the latest generation of ground-based instruments that are equipped with an extreme …

Context. The observation of planets in their formation stage is a crucial but very challenging
step in understanding when, how, and where planets form. PDS 70 is a young pre-main …

High-contrast adaptive optics (AO) imaging is a powerful technique to probe the
architectures of planetary systems from the outside-in and survey the atmospheres of self …

We analyze 5108 AFGKM stars with at least five high-precision radial velocity points, as well
as Gaia and Hipparcos astrometric data, utilizing a novel pipeline developed in previous …

Observations of circumstellar environments that look for the direct signal of exoplanets and
the scattered light from disks have significant instrumental implications. In the past 15 years …

We explored the impact of the latest equation of state (EOS) for dense hydrogen–helium
mixtures, which takes into account the interactions between hydrogen and helium species …

Abstract orbitize! is an open-source, object-oriented software package for fitting the orbits of
directly imaged objects. It packages the Orbits for the Impatient (OFTI) algorithm and a …

We measure dynamical masses for five objects—three ultracool dwarfs, one low-mass star,
and one white dwarf—by fitting orbits to a combination of the Hipparcos–Gaia Catalog of …

Context. 51 Eridani b is an exoplanet around a young (20 Myr) nearby (29.4 pc) F0-type star,
which was recently discovered by direct imaging. It is one of the closest direct imaging …

Context. Directly imaged planets and substellar companions are key targets for the
characterization of self-luminous atmospheres. Their photometric appearance at 4–5 μm is …