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相关论文: A New Catalog of Globular Clusters in the Milky Wa…

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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

We provide new values of the orbital parameters of 152 globular clusters, which are calculated using the new mean proper motions obtained from the Gaia EDR3 catalog data. The orbits were integrated 5 Gyr back in an axisymmetric…

星系天体物理 · 物理学 2021-08-20 A. T. Bajkova , V. V. Bobylev

We present orbits and their properties for 152 globular clusters of the Milky Way galaxy obtained using average Gaia DR2 proper motions and other astrometric data from the list of Vasiliev (2019). For orbit integrating we have used the…

星系天体物理 · 物理学 2021-09-08 A. T. Bajkova , V. V. Bobylev

The estimated total number of Milky Way globulars is 160+-20. The question of whether there are any more undiscovered globular clusters in the Milky Way is particularly relevant with advances in near and mid-IR instrumentation. This…

天体物理学 · 物理学 2009-11-13 R. Kurtev , V. D. Ivanov , J. Borissova , S. Ortolani

Updated data of the 153 Galactic globular clusters are used to readdress fundamental parameters of the Milky Way. We build a reduced sample, decontaminated of the clusters younger than 10Gyr, those with retrograde orbits and/or evidence of…

天体物理学 · 物理学 2011-03-28 Eduardo Bica , Charles Bonatto , Beatriz Barbuy , Sergio Ortolani

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

We present a new homogeneous set of metallicity estimates based on Lick indices for 245 old globular clusters of the M31 galaxy comprised in the Revised Bologna Catalog. The metallicity distribution of the M31 globular clusters is briefly…

太阳与恒星天体物理 · 物理学 2015-05-14 S. Galleti , M. Bellazzini , A. Buzzoni , L. Federici , F. Fusi Pecci

We argue that globular clusters (GCs) are good candidates for gravitational lenses in explaining quasar-galaxy associations. The catalog of associations (Bukhmastova 2001) compiled from the LEDA catalog of galaxies (Paturel 1997) and from…

天体物理学 · 物理学 2009-11-07 Yu. L. Bukhmastova

We present a catalog of Galactic star clusters, associations and candidates with 10978 entries. This multi-band catalog was constructed over 20 years, starting with visual inspections on the Digital Sky Survey and incremented with the…

星系天体物理 · 物理学 2019-01-02 Eduardo Bica , Daniela B. Pavani , Charles J. Bonatto , Eliade F. Lima

Recent observational results on the globular cluster systems of spiral galaxies are summarized. Although the number of spirals with well-studied GCSs is still small, new studies promise to increase it rapidly in the next few years. New…

天体物理学 · 物理学 2009-11-07 Pauline Barmby

Globular clusters are large collections of old stars that are orbiting the core of a galaxy. Our Milky Way Galaxy has about 160 known clusters, with perhaps more to be discovered. We first accumulated the necessary parameters for 16…

高能天体物理现象 · 物理学 2017-12-22 Hambeleleni Ndiyavala , Christo Venter , Petrus Paulus Kruger

We perform integrated spectroscopy of 24 Galactic globular clusters. Spectra are observed from one core radius for each cluster with a high wavelength resolution of ~2.0 A FWHM. In combination with two existing data sets from Puzia et al.…

星系天体物理 · 物理学 2016-12-14 Hak-Sub Kim , Jaeil Cho , Ray M. Sharples , Alexandre Vazdekis , Michael A. Beasley , Suk-Jin Yoon

Context. Recent observational data show that the Milky Way (MW) galaxy contains about 170 globular clusters (GCs). A fraction of them is likely formed in dwarf galaxies accreted onto the MW in the past, while the remaining of clusters are…

星系天体物理 · 物理学 2023-05-24 M. Ishchenko , M. Sobolenko , P. Berczik , S. Khoperskov , C. Omarov , O. Sobodar , M. Makukov

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

A catalog of Galactic globular clusters has been compiled and used to analyze relations between the chemical and kinematic parameters of the clusters. The catalog contains positions, distances, luminosities, metallicites, and…

星系天体物理 · 物理学 2019-04-15 V. A. Marsakov , V. V. Koval' , M. L. Gozha

Detailed understanding of the formation and evolution of globular clusters (GCs) has been recently advanced through a combination of numerical simulations and analytical models. We employ a state-of-the-art model to create a comprehensive…

星系天体物理 · 物理学 2023-11-30 Yingtian Chen , Oleg Y. Gnedin

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

Absolute proper motions for six new globular clusters have recently been determined. This motivated us to obtain the Galactic orbits of these six clusters both in an axisymmetric Galactic potential and in a barred potential, such as the one…

天体物理学 · 物理学 2009-11-13 Christine Allen , Edmundo Moreno , Barbara Pichardo

We present the Milky Way Globular Cluster Corpus v1.3.1, a unified machine-readable database of fundamental parameters for 174 Milky Way globular clusters assembled from four independent published surveys. Each cluster record integrates…

星系天体物理 · 物理学 2026-05-12 David C. Flynn

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
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