Circumstellar dust exists around several hundred main sequence stars. For the youngest
stars, that dust could be a remnant of the protoplanetary disk. Mostly it is inferred to be …

▪ Abstract Until the late 1990s the rich Hyades and the sparse UMa clusters were the only
coeval, comoving concentrations of stars known within 60 pc of Earth. Both are hundreds of …

Here, we show that the~ 10-million-year-old β Pictoris system hosts a massive giant planet,
β Pictoris b, located 8 to 15 astronomical units from the star. This result confirms that gas …

AU Microscopii (AU Mic) is a young, active star whose transiting planet was recently
detected. Here, we report our analysis of its TESS light curve, where we modeled the BY …

Context. Since the discovery of its dusty disk in 1984, β Pictoris has become the prototype of
young early-type planetary systems, and there are now various indications that a massive …

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 …

We report the results of a∼ 4 yr direct imaging survey of 104 stars to resolve and
characterize circumstellar debris disks in scattered light as part of the Gemini Planet Imager …

Context. Debris discs are a consequence of the planet formation process and constitute the
fingerprints of planetesimal systems. Their solar system counterparts are the asteroid and …

With its imaged debris disk of dust, its evaporating exocomets, and an imaged giant planet,
the young (~ 23 Myr) β Pictoris system is a unique proxy for detailed studies of planet …

Many stars are surrounded by disks of dusty debris formed in the collisions of asteroids,
comets, and dwarf planets, but is gas also released in such events? Observations at …