中文
相关论文

相关论文: Cluster aggregates surrounding Pismis 5 in the Vel…

200 篇论文

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…

太阳与恒星天体物理 · 物理学 2020-06-24 Filipe A. Ferreira , J. F. C. Santos , W. J. B. Corradi , F. F. S. Maia , M. S. Angelo

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)…

星系天体物理 · 物理学 2022-05-18 Zhihong He , Chunyan Li , Jing Zhong , Guimei Liu , Leya Bai , Songmei Qin , Yueyue Jiang , Xi Zhang , Li Chen

A rare multiple open cluster system has been analyzed using Gaia DR3 astrometry and photometry data. Using Agglomerative Hierarchical clustering and Bayesian-HDBSCAN, we identify a compact core consisting of seven known open clusters and…

星系天体物理 · 物理学 2026-04-28 Muhammad Akmal Husain , Ferdinand , Mochamad Ikbal Arifyanto , Muhammad Irfan Hakim

We systematically searched for open clusters in the solar neighborhood within 500 pc using pyUPMASK and HDBSCAN clustering algorithms based on {\it Gaia} DR3. Taking into consideration that the physical size for most open clusters is less…

太阳与恒星天体物理 · 物理学 2023-03-01 Songmei Qin , Jing Zhong , Tong Tang , Li Chen

Context. Near open clusters as Pleiades, Praesepe and Blanco 1 have been extensively studied due to their proximity to the Sun. The Gaia data brings the opportunity to investigate these clusters, since it contains valuable astrometric and…

星系天体物理 · 物理学 2023-09-27 Jeison Alfonso , Alejandro García-Varela

Open clusters have long been used to gain insights into the structure, composition, and evolution of the Galaxy. With the large amount of stellar data available for many clusters in the Gaia era, new techniques must be developed for…

太阳与恒星天体物理 · 物理学 2018-07-25 Steffi X. Yen , Sabine Reffert , Elena Schilbach , Siegfried Röser , Nina V. Kharchenko , Anatoly E. Piskunov

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 high-precision {\it Gaia} data release 3 (DR3) enables the discovery of numerous open clusters in the Milky Way, providing an excellent opportunity to search for blue straggler stars in open clusters and investigate their formation and…

太阳与恒星天体物理 · 物理学 2025-11-11 Songmei Qin , Jing Zhong , Friedrich Anders , Lola Balaguer-Núñez , Chunyan Li , Yueyue Jiang , Guimei Liu , Tong Tang , Li Chen

Several recent studies have shown that the Vela OB2 region hosts a complex constellation of sub-populations with ages in the range 10 to 50 Myr. Such populations might represent the best example of the outcome of clustered star formation in…

太阳与恒星天体物理 · 物理学 2020-01-08 Giacomo Beccari , Henri M. J. Boffin , Tereza Jerabkova

Context. Most stars from in groups which with time disperse, building the field population of their host galaxy. In the Milky Way, open clusters have been continuously forming in the disk up to the present time, providing it with stars…

星系天体物理 · 物理学 2023-09-08 Pedro Guilherme-Garcia , Alberto Krone-Martins , André Moitinho

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…

星系天体物理 · 物理学 2023-05-17 Emily L. Hunt , Sabine Reffert

Open clusters (OCs) are regarded as tracers to understand stellar evolution theory and validate stellar models. In this study, we presented a robust approach to identifying OCs. A hybrid method of pyUPMASK and RF is first used to remove…

太阳与恒星天体物理 · 物理学 2023-03-08 Huanbin Chi , Shoulin Wei , Feng Wang , Zhongmu Li

Studying open clusters (OCs) is essential for a comprehensive understanding of the structure and evolution of the Milky Way. Many previous studies have systematically searched for OCs near the solar system within 1.2 kpc or 20 degrees of…

星系天体物理 · 物理学 2023-06-14 Huanbin Chi , Feng Wang , Wenting Wang , Hui Deng , Zhongmu Li

We conducted a survey of open clusters within 1 kpc from the Sun using the astrometric and photometric data of the Gaia Data Release 2. We found 655 cluster candidates by visual inspection of the stellar distributions in proper motion space…

太阳与恒星天体物理 · 物理学 2019-11-01 Gyuheon Sim , Sang Hyun Lee , Hong Bae Ann , Seunghyeon Kim

Thanks to the recent wide-area photometric surveys, the number of star cluster candidates have risen exponentially in the last few years. Most detections, however, are based only on the presence of an overdensity of stars in a given region,…

We identify hierarchical structures in the Vela OB2 complex and the cluster pair Collinder 135 and UBC 7 with Gaia EDR3 using the neural network machine learning algorithm StarGO. Five second-level substructures are disentangled in Vela…

星系天体物理 · 物理学 2021-12-15 Xiaoying Pang , Zeqiu Yu , Shih-Yun Tang , Jongsuk Hong , Zhen Yuan , Mario Pasquato , M. B. N. Kouwenhoven

Context. Since the first publication of the Gaia catalogue a new view of our Galaxy has arrived. Its astrometric and photometric information has improved the precision of the physical parameters of open star clusters obtained from them.…

星系天体物理 · 物理学 2024-08-28 Jeison Alfonso , Alejandro García-Varela , Katherine Vieira

We report the discovery of four new open clusters (named as QC 1, QC 2, QC3 and QC 4) in the direction of Cygnus Cloud and select their members based on five astrometric parameters (l, b, \varpi, \mu^*_{\alpha}, \mu_{\delta}) of Gaia DR2.…

太阳与恒星天体物理 · 物理学 2021-03-31 Song-mei Qin , Jing Li , Li Chen , Jing Zhong

We report the serendipitous discovery of three new open clusters, named UFMG 1, UFMG 2 and UFMG 3 in the field of the intermediate-age cluster NGC 5999, by using Gaia DR2 data. A colour-magnitude filter tailored for a proper selection of…

星系天体物理 · 物理学 2019-01-09 Filipe A. Ferreira , J. F. C. Santos , W. J. B. Corradi , F. F. S. Maia , M. S. Angelo

COIN-Gaia 13 is a newly discovered open cluster revealed by Gaia DR2 data. It is a nearby open cluster with a distance of about 513 pc. Combined with the five-dimensional astrometric data of Gaia EDR3 with higher accuracy, we use the…

星系天体物理 · 物理学 2022-04-26 Leya Bai , Jing Zhong , Li Chen , Jing Li , Jinliang Hou
‹ 上一页 1 2 3 10 下一页 ›