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Related papers: IC 4665 DANCe I. Members, empirical isochrones, ma…

200 papers

To complement our previous discovery of the young snake-like structure in the solar neighborhood and reveal the structure's full extent, we build two samples of stars within the Snake and its surrounding territory from {\tt Gaia EDR3}. With…

Astrophysics of Galaxies · Physics 2022-04-06 Fan Wang , Hai-Jun Tian , Dan Qiu , Qi Xu , Min Fang , Hao Tian , Di Li , Sarah Bird , Jian-Rong Shi , Xiao-Ting Fu , Gao-Chao Liu , Sheng Cui , Yong Zhang

The solar neighbourhood is populated by nearby, young moving groups (NYMGs) of stars that are candidates to be remnants of individual stellar clusters and associations, currently dispersing in the galactic disc. To derive the initial mass…

In this work, we investigate the dynamical properties of 38 Galactic open clusters: 34 of them are located at low Galactic latitudes (|b| < 10$^{\circ}$) and are projected against dense stellar fields; the other 4 comparison objects present…

Astrophysics of Galaxies · Physics 2020-12-16 M. S. Angelo , W. J. B. Corradi , J. F. C. Santos , F. F. S. Maia , F. A. Ferreira

Context. The origin and dynamical evolution of star clusters is an important topic in stellar astrophysics. Several models have been proposed to understand the formation of bound and unbound clusters and their evolution, and these can be…

Reliable fundamental parameters of open clusters such as distance, age and extinction are key to our understanding of Galactic structure and stellar evolution. In this work we use {\it Gaia} DR2 to investigate 45 open clusters listed in the…

Solar and Stellar Astrophysics · Physics 2020-10-07 H. Monteiro , W. S. Dias , A. Moitinho , T. Cantat-Gaudin , J. R. D. Lépine , G. , Carraro , E. Paunzen

Open clusters are groups of stars that form at the same time, making them an ideal laboratory to test theories of star formation, stellar evolution, and dynamics in the Milky Way disk. However, the utility of an open cluster can be limited…

Astrophysics of Galaxies · Physics 2022-01-12 Karl Jaehnig , Jonathan Bird , Kelly Holley-Bockelmann

To identify member populations of IC 1396, we employ the random forest (RF) classifier of machine learning technique. Random forest classifier is an ensemble of individual decision trees suitable for large, high-dimensional datasets. The…

Astrophysics of Galaxies · Physics 2025-03-21 Swagat R Das , Saumya Gupta , Jessy Jose , Manash Samal , Gregory J. Herczeg , Zhen Guo , Surhud More , Prem Prakash

Recent studies have identified star clusters with multiple components based on accurate spatial distributions and/or proper motions from Gaia DR3, utilising diverse diagnostics to improve our understanding of subgroup evolution. These…

Solar and Stellar Astrophysics · Physics 2024-08-02 J. Gregorio-Hetem , A. Hetem

We report 541 new open cluster candidates in Gaia EDR3 through revisiting the cluster results from an earlier analysis of the Gaia DR2, which revealed nearly a thousand open cluster candidates in the solar neighborhood (mostly d < 3 kpc)…

Astrophysics of Galaxies · Physics 2022-05-18 Zhihong He , Chunyan Li , Jing Zhong , Guimei Liu , Leya Bai , Songmei Qin , Yueyue Jiang , Xi Zhang , Li Chen

We examine the spatial distribution of star clusters in NGC 628 using the statistical tool INDICATE to quantify clustering tendencies. Our sample, based on HST and JWST observations, is the most complete to date, spanning ages from 1 Myr to…

The Gaia-ESO Survey (GES) observed many open clusters as part of its programme to spectroscopically characterise the various Milky Way populations. GES spectroscopy and Gaia astrometry from its second data release are used here to assign…

In Gaia DR2, the unprecedented high-precision level reached in sub-mas for astrometry and mmag for photometry. Using cluster members identified with these astrometry and photometry in Gaia DR2, we can obtain a reliable determination of…

Astrophysics of Galaxies · Physics 2020-09-02 Jing Zhong , Li Chen , Di Wu , Lu Li , Leya Bai , Jinliang Hou

Context: The $\chi^{1}$ Fornacis cluster (Alessi 13) is one of a few open clusters of its age and distance in the Solar neighbourhood that ought to benefit from more attention as it can serve as a cornerstone for numerous future studies…

Solar and Stellar Astrophysics · Physics 2021-10-27 P. A. B. Galli , H. Bouy , J. Olivares , N. Miret-Roig , L. M. Sarro , D. Barrado , A. Berihuete

The Gaia mission has opened a new window into the internal kinematics of young star clusters at the sub-km/s level, with implications for our understanding of how star clusters form and evolve. We use a sample of 28 clusters and…

Astrophysics of Galaxies · Physics 2019-01-09 Michael A. Kuhn , Lynne A. Hillenbrand , Alison Sills , Eric D. Feigelson , Konstantin V. Getman

We present the dynamical evolution of ten open clusters which were part of our previous studies. These clusters include both young and intermediate-age open clusters with ages ranging from 25$\pm$19 Myr to 1.78$\pm$0.20 Gyr. The total mass…

Astrophysics of Galaxies · Physics 2023-07-19 Jayanand Maurya , Y. C. Joshi , Manash Ranjan Samal , Vineet Rawat , Anubha Singh Gour

Young star clusters consisting of massive stars are the ideal sites to study the star formation processes and influence of massive stars on the subsequent star formation. NGC 1893 is a young star cluster associated with the HII region…

Solar and Stellar Astrophysics · Physics 2022-02-09 Neelam Panwar , Amit Kumar , S. B. Pandey

In this work we improve a previously published method to calculate in a reliable way the radius of an open cluster. The method is based on the behaviour of stars in the proper motion space as the sampling changes in the position space. Here…

Astrophysics of Galaxies · Physics 2020-05-27 Nestor Sanchez , Emilio Alfaro , Fatima Lopez-Martinez

We present a multiwavelength study of the formation of massive stellar clusters, their emergence from cocoons of gas and dust, and their feedback on surrounding matter. Using data that span from radio to optical wavelengths, including…

Astrophysics · Physics 2009-12-04 A. M. Gilbert , W. D. Vacca

Context: Star clusters, composed of stars born from the same molecular cloud, serve as invaluable natural laboratories for understanding the fundamental processes governing stellar formation and evolution. Aims: This study aims to…

We examine the properties of embedded clusters within 1 kiloparsec using new data from the Spitzer Space Telescope, as well as recent results from 2MASS and other ground-based near-infrared surveys. We use surveys of entire molecular clouds…