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 …

The Gaia mission has opened a new window into the internal kinematics of young star
clusters at the sub-km s− 1 level, with implications for our understanding of how star clusters …

The Sloan Digital Sky Survey (SDSS; York et al. 2000) started observations in 1998 and has
completed three different phases. The data collected includes optical imaging of most of the …

We derive the distance and structure of the Perseus molecular cloud by combining
trigonometric parallaxes from Very Long Baseline Array (VLBA) observations, taken as part …

Multiplicity is a fundamental property that is set early during stellar lifetimes, and it is a
stringent probe of the physics of star formation. The distribution of close companions around …

Close encounters between young stellar objects in star-forming clusters are expected to
markedly perturb circumstellar disks. Such events are witnessed in numerical simulations of …

Most stars and thus most planetary systems do not form in isolation. The larger star-forming
environment affects protoplanetary disks in multiple ways: Gravitational interactions with …

We have obtained optical and near-infrared spectra of candidate members of the star-
forming clusters IC 348 and NGC 1333. We classify 100 and 42 candidates as new …

We present the results of the Sloan Digital Sky Survey APOGEE INfrared Spectroscopy of
Young Nebulous Clusters program (IN-SYNC) survey of the Orion A molecular cloud. This …

Theory predicts that we should find fast, ejected (runaway) stars of all masses around dense,
young star-forming regions. N-body simulations show that the number and distribution of …