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Related papers: Nine tiny star clusters in Gaia DR1, PS1 and DES

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We report the discovery of 25 new open clusters resulting from a search in dense low galactic latitude fields. We also provide, for the first time, structural and astrophysical parameters for the new findings and 34 other recently…

Solar and Stellar Astrophysics · Physics 2020-06-24 Filipe A. Ferreira , J. F. C. Santos , W. J. B. Corradi , F. F. S. Maia , M. S. Angelo

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 contains precise astrometry at the sub-milliarcsecond level and…

The astrometric satellite Gaia recently released part of its third data set, which provides a good opportunity to hunt for more open clusters in the Milky Way. In this work, we conduct a blind search for open clusters in the Galactic disk…

Astrophysics of Galaxies · Physics 2022-04-20 C. J. Hao , Y. Xu , Z. Y. Wu , Z. H. Lin , D. J. Liu , Y. J. Li

Based on astrometric data from Gaia DR2, we employ an unsupervised machine learning method to blindly search for open star clusters in the Milky Way within the Galactic latitude range of |b| < 20 degrees. In addition to 2,080 known…

Astrophysics of Galaxies · Physics 2021-06-02 Zhi-Hong He , Ye Xu , Chao-Jie Hao , Zhen-Yu Wu , Jing-Jing Li

Data from the Gaia satellite are revolutionising our understanding of the Milky Way. With every new data release, there is a need to update the census of open clusters. We aim to conduct a blind, all-sky search for open clusters using 729…

Astrophysics of Galaxies · Physics 2023-05-17 Emily L. Hunt , Sabine Reffert

We present the results of the very first search for faint Milky Way satellites in the Gaia data. Using stellar positions only, we are able to re-discover objects detected in much deeper data as recently as the last couple of years. While we…

Astrophysics of Galaxies · Physics 2017-06-30 S. E. Koposov , V. Belokurov , G. Torrealba

We report 1,656 new star clusters found in the Galactic disk (|b|<20 degrees) beyond 1.2 kpc, using Gaia EDR3 data. Based on an unsupervised machine learning algorithm, DBSCAN, and followed our previous studies, we utilized a unique method…

Astrophysics of Galaxies · Physics 2022-12-28 Zhihong He , Xiaochen Liu , Yangping Luo , Kun Wang , Qingquan Jiang

Despite having data for over 10^9 stars from Gaia, only less than 10^4 star clusters and candidates have been discovered. Particularly, distant star clusters are rarely identified, due to the challenges posed by heavy extinction and great…

Astrophysics of Galaxies · Physics 2023-08-09 Zhihong He , Yangping Luo , Kun Wang , Anbing Ren , Liming Peng , Qian Cui , Xiaochen Liu , Qingquan Jiang

The physical nature of a series of 20 new open clusters is confirmed employing existing data on putative star members, mainly from second Gaia Data Release (DR2). The clusters were discovered as overdensities of stars by visual inspection…

Solar and Stellar Astrophysics · Physics 2021-06-23 Juan Casado

We present Magellan/M2FS spectroscopy of four recently discovered Milky Way star clusters (Gran 3/Patchick~125, Gran 4, Garro 01, LP 866) and two newly discovered open clusters (Gaia 9, Gaia 10) at low Galactic latitudes. We measure…

An inspection of the DSS and 2MASS images of selected Milky Way regions has led to the discovery of 66 stellar groupings whose morphologies, color-magnitude diagrams, and stellar density distributions suggest that these objects are possible…

General Relativity and Quantum Cosmology · Physics 2009-11-11 M. Kronberger , P. Teutsch , B. Alessi , M. Steine , L. Ferrero , K. Graczewski , M. Juchert , D. Patchick , D. Riddle , J. Saloranta , M. Schoenball , C. Watson

The improvements in the precision of the published data in \textit{Gaia} EDR3 with respect to \textit{Gaia} DR2, particularly for parallaxes and proper motions, offer the opportunity to increase the number of known open clusters in the…

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

The sample of known star clusters, the fundamental building blocks of galaxies, in the Milky Way is still extremely incomplete for objects beyond a distance of 1-2kpc. Many of the more distant and young clusters are compact and hidden…

Astrophysics of Galaxies · Physics 2017-07-19 D. Froebrich

Star clusters are among the first celestial objects catalogued by early astronomers. As simple and coeval populations, their study has been instrumental in charting the properties of the Milky Way and providing insight into stellar…

Astrophysics of Galaxies · Physics 2024-06-06 T. Cantat-Gaudin , L. Casamiquela

We report results on the analysis of eleven new Milky Way open cluster candidates, recently discovered from the detection of stellar overdensities in the Vector Point diagram, by employing extreme deconvolution Gaussian mixture models. We…

Astrophysics of Galaxies · Physics 2022-12-07 A. E. Piatti , D. M. F. Illesca , A. A. Massara , M. Chiarpotti , D. Roldán , M. Morón , F. Bazzoni

Although previous searches for star clusters have been very successful, many clusters are likely still omitted, especially at high Galactic latitude regions. In this work, based on the astrometry of Gaia EDR3, we searched nearby (parallax >…

Astrophysics of Galaxies · Physics 2022-08-31 Zhihong He , Kun Wang , Yangping Luo , Jing Li , Xiaochen Liu , Qingquan Jiang

An earlier analysis of the Milky Way Star Cluster (MWSC) catalogue revealed an apparent lack of old (> 1 Gyr) open clusters in the solar neighbourhood (< 1 kpc). To fill this gap we undertook a search for hitherto unknown star clusters,…

Astrophysics of Galaxies · Physics 2014-09-05 S. Schmeja , N. V. Kharchenko , A. E. Piskunov , S. Röser , E. Schilbach , D. Froebrich , R. -D. Scholz

Many open clusters listed in modern catalogues were initially reported by visual astronomers as apparent overdensities of bright stars. As observational techniques and analysis methods continue to improve, some of them have been shown to be…

Solar and Stellar Astrophysics · Physics 2020-01-27 T. Cantat-Gaudin , F. Anders

A systematic search of the 2MASS point source catalog, covering 47% of the sky, was carried out aiming to reveal any hidden globular clusters in our Galaxy. Eight new star clusters were discovered by a search algorithm based on finding…

Astrophysics · Physics 2009-11-07 V. D. Ivanov , J. Borissova , P. Pessev , G. R. Ivanov , R. Kurtev
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