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相关论文: New galactic open cluster candidates from DSS and …

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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…

天体物理学 · 物理学 2009-11-07 V. D. Ivanov , J. Borissova , P. Pessev , G. R. Ivanov , R. Kurtev

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,…

星系天体物理 · 物理学 2014-09-05 S. Schmeja , N. V. Kharchenko , A. E. Piskunov , S. Röser , E. Schilbach , D. Froebrich , R. -D. Scholz

This paper is part of a project to search the inner Milky Way for hidden massive clusters and to address the question of whether our Galaxy still forms clusters similar to the progenitors of the present-day globular clusters. We report high…

天体物理学 · 物理学 2009-11-10 J. Borissova , V. D. Ivanov , D. Minniti , D. Geisler , A. W. Stephens

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 present 11 new open cluster candidates found in a systematic search for unknown star clusters using the astrometric and photometric data included in the Tycho2 catalog. The possible existence of these stellar aggregates is supported by…

天体物理学 · 物理学 2009-11-10 B. S. Alessi , A. Moitinho , W. S. Dias

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…

星系天体物理 · 物理学 2022-12-07 A. E. Piatti , D. M. F. Illesca , A. A. Massara , M. Chiarpotti , D. Roldán , M. Morón , F. Bazzoni

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…

星系天体物理 · 物理学 2021-06-02 Zhi-Hong He , Ye Xu , Chao-Jie Hao , Zhen-Yu Wu , Jing-Jing Li

Nearly 500 cluster candidates have been reported by searches based on the new all-sky near infrared surveys. The true nature of the majority of these objects is still unknown. This project aims to estimate the physical parameters of some of…

天体物理学 · 物理学 2009-11-10 V. D. Ivanov , J. Borissova , F. Bresolin , P. Pessev

The main goal of our project is to obtain a complete picture of individual open clusters from homogeneous data and then search for correlations between their astrophysical parameters. The near-infrared JHKS photometric data from the…

太阳与恒星天体物理 · 物理学 2011-07-27 Ł. Bukowiecki , G. Maciejewski , P. Konorski , A. Strobel

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

Automated search for star clusters in J,H,K_s data from 2MASS catalog has been performed using the method developed by Koposov et. al (2008). We have found and verified 153 new clusters in the interval of the galactic latitude -24 < b < 24…

星系天体物理 · 物理学 2010-11-26 Elena Glushkova , Sergey Koposov , Ivan Zolotukhin , Yuri Beletsky , Andrey Vlasov , Svetlana Leonova

Aims: On the basis of the PPMXL star catalogue we performed a survey of star clusters in the second quadrant of the Milky Way. Methods: From the PPMXL catalogue of positions and proper motions we took the subset of stars with near-infrared…

星系天体物理 · 物理学 2015-06-05 N. V. Kharchenko , A. E. Piskunov , E. Schilbach , S. Röser , 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

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

We carried out a survey of infrared star clusters and stellar groups on the 2MASS J, H and K_s all-sky release Atlas in the Northern and Equatorial Milky Way (350 < l < 360, 0 < l < 230). The search in this zone complements that in the…

天体物理学 · 物理学 2009-11-07 E. Bica , C. M. Dutra , J. Soares , B. Barbuy

AIMS: In their 1st extension to the Milky Way Star Clusters (MWSC) survey, Schmeja et al. applied photometric filters to the 2MASS to find new cluster candidates that were subsequently confirmed or rejected by the MWSC pipeline. To further…

太阳与恒星天体物理 · 物理学 2015-09-02 R. -D. Scholz , N. V. Kharchenko , A. E. Piskunov , S. Röser , E. Schilbach

Although they are the main constituents of the Galactic disk population, for half of the open clusters in the Milky Way reported in the literature nothing is known except the raw position and an approximate size. The main goal of this study…

星系天体物理 · 物理学 2015-06-17 N. V. Kharchenko , A. E. Piskunov , E. Schilbach , S. Röser , R. -D. Scholz

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

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 present a catalog of 4780 extended sources from the outer field of M33. The catalog includes 73 previously identified clusters or planetary nebulae, 1153 likely background galaxies, and 3554 new candidate stellar clusters. The survey is…

天体物理学 · 物理学 2008-05-29 K. Zloczewski , J. Kaluzny , J. Hartman
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