We present a statistical analysis of the first 300 stars observed by the Gemini Planet Imager
Exoplanet Survey. This subsample includes six detected planets and three brown dwarfs; …

BANYAN Σ is a new Bayesian algorithm to identify members of young stellar associations
within 150 pc of the Sun. It includes 27 young associations with ages in the range∼ 1–800 …

Aims. We study the evolution of the rotation and the high energy X-ray, extreme ultraviolet
(EUV), and Ly-α emission for F, G, K, and M dwarfs, with masses between 0.1 and 1.2 M⊙ …

We present an analysis of the intrinsic colors and temperatures of 5–30 Myr old pre-main-
sequence (pre-MS) stars using the F0-through M9-type members of nearby, negligibly …

We present a self-consistent, absolute isochronal age scale for young (≲ 200 Myr), nearby
(≲ 100 pc) moving groups in the solar neighbourhood based on homogeneous fitting of …

Turbulence is a crucial factor in many models of planet formation, but it has only been
directly constrained among a small number of planet-forming disks. Building on the upper …

We present results of a spectroscopic survey for new K-and M-type members of Scorpius–
Centaurus (Sco–Cen), the nearest OB Association (∼ 100–200 pc). Using an X-ray, proper …

We present a sample of 824 solar and late-type stars with X-ray luminosities and rotation
periods. This is used to study the relationship between rotation and stellar activity and derive …

Transition disks with large inner dust cavities are thought to host massive companions.
However, the disk structure inside the companion orbit and how material flows toward an …

Rotation is a directly observable stellar property, and it drives magnetic field generation and
activity through a magnetic dynamo. Main-sequence stars with masses below approximately …