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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…

Astrophysics of Galaxies · Physics 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…

Astrophysics of Galaxies · Physics 2021-09-08 A. T. Bajkova , V. V. Bobylev

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 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…

Astrophysics of Galaxies · Physics 2019-01-02 Eduardo Bica , Daniela B. Pavani , Charles J. Bonatto , Eliade F. Lima

We have determined masses, stellar mass functions and structural parameters of 112 Milky Way globular clusters by fitting a large set of N-body simulations to their velocity dispersion and surface density profiles. The velocity dispersion…

Astrophysics of Galaxies · Physics 2018-07-03 H. Baumgardt , M. Hilker

A new revision of the McMaster catalog of Milky Way globular clusters is available. This is the first update since 2003 and the biggest single revision since the original version of the catalog published in 1996. The list now contains a…

Astrophysics of Galaxies · Physics 2010-12-16 William E. Harris

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.…

Astrophysics of Galaxies · Physics 2016-12-14 Hak-Sub Kim , Jaeil Cho , Ray M. Sharples , Alexandre Vazdekis , Michael A. Beasley , Suk-Jin Yoon

This paper provides a new catalog of orbits and their parameters for a practically complete list of currently known galactic globular clusters (GCs), compiled by Vasiliev (2019) based on the most accurate modern measurements of their…

Astrophysics of Galaxies · Physics 2023-05-25 A. T. Bajkova , V. V. Bobylev

We present BALRoGO: Bayesian Astrometric Likelihood Recovery of Galactic Objects, a public code to measure the centers, effective radii, and bulk proper motions of Milky Way globular clusters and Local Group dwarf spheroidals, whose data…

Astrophysics of Galaxies · Physics 2021-04-21 Eduardo Vitral

(ABRIDGED) Globular clusters trace the formation and evolution of the Milky Way and surrounding galaxies, and outline their chemical enrichment history. To accomplish these tasks it is important to have large samples of clusters with…

Astrophysics of Galaxies · Physics 2016-05-04 Bruno Dias , Beatriz Barbuy , Ivo Saviane , Enrico Held , Gary Da Costa , Sergio Ortolani , Marco Gullieuszik , Sergio Vasquez

[Abridged]: We present a database of structural and dynamical properties for 153 spatially resolved star clusters (50 "young massive clusters" and 103 old globulars) in the Milky Way, the Large and Small Magellanic Clouds, and the Fornax…

Astrophysics · Physics 2010-04-06 Dean E. McLaughlin , Roeland P. van der Marel

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…

Astrophysics of Galaxies · Physics 2023-09-13 G. I. Perren , M. S. Pera , H. D. Navone , R. A. Vázquez

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…

Astrophysics · Physics 2011-03-28 Eduardo Bica , Charles Bonatto , Beatriz Barbuy , Sergio Ortolani

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…

Solar and Stellar Astrophysics · Physics 2018-07-25 Steffi X. Yen , Sabine Reffert , Elena Schilbach , Siegfried Röser , Nina V. Kharchenko , Anatoly E. Piskunov

Globular clusters encode the hierarchical assembly history of the Milky Way and the physics of multiple stellar populations. Using homogeneous stellar parameters for 69 Galactic globular clusters derived while modelling multiple…

Astrophysics of Galaxies · Physics 2026-05-27 Carmela Lardo , David Valcin , Raul Jimenez

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…

Astrophysics of Galaxies · Physics 2023-11-30 Yingtian Chen , Oleg Y. Gnedin

A new method for determining the nature of the orbital motion (chaotic or regular) of globular clusters in the central region of the Galaxy with a radius of 3.5 kpc, which are most affected by the bar, is proposed. The method is based on…

Astrophysics of Galaxies · Physics 2025-04-30 Anisa Bajkova , Anton Smirnov , Vadim Bobylev

Globular clusters (GCs) provide statistically significant coeval populations of stars spanning various evolutionary stages, allowing robust constraints on stellar evolution model parameters and ages. We analyze eight old Milky Way GCs with…

Astrophysics of Galaxies · Physics 2025-05-07 Jiaqi , Ying , Brian Chaboyer , Michael Boylan-Kolchin , Daniel Weisz , Rowan Goebel-Bain

We analyzed the regularity/chaoticity of the orbits of 45 globular clusters in the central region of the Galaxy with a radius of 3.5 kpc, which are subject to the greatest influence from an elongated rotating bar. Various analysis methods…

Astrophysics of Galaxies · Physics 2024-06-25 Anisa Bajkova , Anton Smirnov , Vadim Bobylev

Context. Based on the Gaia DR3, we reconstructed the orbital evolution of the known Milky Way globular clusters and found that six objects, NGC 6681, NGC 6981, Palomar 6, NGC 6642, HP 1, and NGC 1904, very likely interact closely with the…

Astrophysics of Galaxies · Physics 2024-06-28 M. Ishchenko , P. Berczik , T. Panamarev , D. Kuvatova , M. Kalambay , A. Gluchshenko , O. Veles , M. Sobolenko , O. Sobodar , C. Omarov
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