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相关论文: 109 new Galactic open clusters

200 篇论文

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 >…

星系天体物理 · 物理学 2022-08-31 Zhihong He , Kun Wang , Yangping Luo , Jing Li , Xiaochen Liu , Qingquan Jiang

We present new automatic methods of search for star clusters using the data available in new huge stellar catalogues. Using 2MASS catalogue we have discovered over ten new open clusters in the region of Galaxy anticenter and determined…

天体物理学 · 物理学 2007-05-23 Sergey Koposov , Elena Glushkova , Ivan Zolotukhin

We have developed a star-counting algorithm and tested it on the 2MASS star catalog to search for density enhancements significantly above the field in Galactic latitude $|b|<50^{\circ}$. Nearly 500 open clusters are "rediscovered", along…

太阳与恒星天体物理 · 物理学 2012-02-21 C. C. Lin , W. P. Chen , E. A. Magnier

Based on the DESI Legacy Imaging Surveys released data and available spectroscopic redshifts, we identify 1.58 million clusters of galaxies by searching for the overdensity of stellar mass distribution of galaxies within redshift slices…

宇宙学与河外天体物理 · 物理学 2024-04-03 Z. L. Wen , J. L. Han

We present the 2nd version of the Catalogue of Radial Velocities with Astrometric Data (CRVAD-2). This is the result of the cross-identification of stars from the All-Sky Compiled Catalogue of 2.5 Million Stars (ASCC-2.5) with the General…

天体物理学 · 物理学 2016-08-14 N. V. Kharchenko , R. -D. Scholz , A. E. Piskunov , S. Röser , E. Schilbach

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…

星系天体物理 · 物理学 2017-07-19 D. Froebrich

We used star density maps obtained from 2MASS to obtain a sample of star clusters in the entire Galactic Plane with |b|<20deg. A total of 1788 star cluster candidates are identified in this survey. Among those are 681 previously known open…

天体物理学 · 物理学 2009-11-11 D. Froebrich , A. Scholz , C. L. Raftery

We collected radial velocities of more than 50.000 individual stars in 156 Galactic globular clusters (GGC) and matched them with HST photometry and Gaia DR2 proper motions. This allowed us to derive the GGC's mean proper motions and space…

星系天体物理 · 物理学 2020-03-18 Michael Hilker , Holger Baumgardt , Antonio Sollima , Andrea Bellini

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…

星系天体物理 · 物理学 2022-12-28 Zhihong He , Xiaochen Liu , Yangping Luo , Kun Wang , Qingquan Jiang

We carried out a systematic search for new star clusters in a field of 5$^{\circ} \times5^{\circ}$ centred close to the Galactic Nucleus using the infrared JHK$_s$ 2MASS Survey archive. In addition we searched for embedded clusters in the…

天体物理学 · 物理学 2007-05-23 C. M. Dutra , E. Bica

We present the first catalogue of known variable stars in open cluster regions and with up to two times the given cluster radius. This gives basic information about the distribution of variable stars in cluster fields for the complete sky.…

太阳与恒星天体物理 · 物理学 2015-06-12 Miloslav Zejda , Ernst Paunzen , Bernhard Baumann , Zdenek Mikulasek , Jiri Liska

We introduce the Unified Cluster Catalogue, the largest catalogue of stellar clusters currently listing nearly 14000 objects. In this initial release it exclusively contains Milky Way open clusters, with plans to include other objects in…

星系天体物理 · 物理学 2023-09-13 G. I. Perren , M. S. Pera , H. D. Navone , R. A. Vázquez

Based on the most complete sample of Galactic open star clusters up to 1.8 kpc, we performed statistical analysis of the distribution of open cluster parameters in order to understand the Galactic structure. The geometrical characteristics…

星系天体物理 · 物理学 2017-07-31 Yogesh C. Joshi

We present results of a study of the galactic open cluster population based on the all-sky catalogue ASCC-2.5 (I/280A) compiled from Tycho-2, Hipparcos and other catalogues. The sample of optical clusters from ASCC-2.5 is complete up to…

天体物理学 · 物理学 2009-11-11 A. E. Piskunov , N. V. Kharchenko , S. Röser , E. Schilbach , R. -D. Scholz

(abridged) In this paper we derive observed and modelled shape parameters (apparent ellipticity and orientation of the ellipse) of 650 Galactic open clusters identified in the ASCC-2.5 catalogue. We provide the observed shape parameters of…

天体物理学 · 物理学 2009-11-13 N. V. Kharchenko , P. Berczik , M. I. Petrov , A. E. Piskunov , S. Röser , E. Schilbach , R. -D. Scholz

We report the discovery of 652 star clusters, stellar groups and candidates in the Milky Way with WISE. Most of the objects are projected close to Galactic Plane and are embedded clusters. The present sample complements a similar study…

星系天体物理 · 物理学 2015-12-03 Denilso Camargo , Eduardo Bica , Charles Bonatto

Aims: This paper presents a new homogeneous catalogue of blue straggler stars (BSS) in Galactic open clusters. Methods: Photometric data for 216 clusters were collected from the literature and 2782 BSS candidates were extracted from 76 of…

天体物理学 · 物理学 2009-11-11 F. De Marchi , F. De Angeli , G. Piotto , G. Carraro , M. B. Davies

We carried out a search for new infrared star clusters, stellar groups and candidates using WISE images, which are very sensitive to dust emission nebulae. We report the discovery of 437 embedded clusters and stellar groups that show a…

太阳与恒星天体物理 · 物理学 2015-03-27 Denilso Camargo , Eduardo Bica , Charles Bonatto

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

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