The Binary Population and Spectral Synthesis suite of binary stellar evolution models and
synthetic stellar populations provides a framework for the physically motivated analysis of …

Context. The first Gaia Data Release contains the Tycho-Gaia Astrometric Solution (TGAS).
This is a subset of about 2 million stars for which, besides the position and photometry, the …

The population statistics of binary stars are an important output of star formation models.
However, populations of wide binaries evolve over time due to interactions within a system's …

ABSTRACT A combination of two unsupervised machine learning algorithms, DBSCAN:
Density-Based Spatial Clustering of Applications with Noise, and GMM: Gaussian mixture …

In this study, we estimate the fraction of binaries with high mass ratios for 202 open clusters
in the extended solar neighbourhood (closer than 1.5 kpc from the Sun). This is one of the …

We determine the mass functions (MFs) and the dynamical parameters of 15 nearby open
clusters (OCs), using the unprecedented data set of the Gaia Early Data Release 3. We …

We quantify the structure of a very large number of Galactic open clusters and look for
evidence of mass segregation for the most massive stars in the clusters. We characterize the …

In this study, we continue our project to search for unresolved binary and multiple systems in
open clusters exploiting the photometric diagram (H–W2)–W1 versus W2–(BP–K) first …

The binary properties of open clusters place crucial constraints on star formation theory and
clusters' dynamical evolution. We develop a comprehensive approach that models the color …

Based on the homogeneous low-resolution spectra data observed by Large Sky Area Multi-
Object Fiber Spectroscopic Telescope (LAMOST) and the Gaia Data Release 2 (Gaia DR2) …