Star clusters form in dense, hierarchically collapsing gas clouds. Bulk kinetic energy is
transformed to turbulence with stars forming from cores fed by filaments. In the most compact …

Context. Open clusters are convenient probes of the structure and history of the Galactic
disk. They are also fundamental to stellar evolution studies. The second Gaia data release …

Context. Many of the open clusters listed in modern catalogues were initially reported by
visual astronomers as apparent overdensities of bright stars. As observational techniques …

Context. The distribution of member stars in the surroundings of an open cluster (OC) can
shed light on the process of its formation, evolution, and dissolution. The analysis of …

The publication of the Gaia catalogue and improvements in methods to determine
memberships and fundamental parameters of open clusters has led to major advances in …

Context. Among the most central open questions regarding the initial mass function (IMF) of
stars is the impact of environment on the shape of the core mass function (CMF) and thus …

We used the dendrogram algorithm to decompose the surface density distributions of stars
into hierarchical structures. These structures were tied to the multiscale structures of star …

We present observational evidence of a correlation between the high-mass slope of the
stellar initial mass function (IMF) in young star clusters and their stellar surface density, σ …

Knowledge of the three-dimensional structure of Galactic molecular clouds is important for
understanding how clouds are affected by processes such as turbulence and magnetic …

We carry out a search for tidal tails in a sample of open clusters with known relatively
elongated morphology. We identify the member stars of these clusters from the precise …