Chemical Composition of Globular Clusters of Milky Way Subsystems from Gaia DR2 Data

被引：2
|
作者：
Budanova, N. O. [1 ]
Bajkova, A. T. [2 ]
Bobylev, V. V. [2 ]
Korchagin, V., I [1 ]
机构：
[1] Southern Fed Univ, Rostov Na Donu, Russia
[2] Russian Acad Sci, Cent Pulkovo Astron Observ, St Petersburg 196140, Russia
来源：
ASTRONOMY REPORTS | 2019年 / 63卷 / 12期
关键词：
ABSOLUTE PROPER MOTION; MASS-DISTRIBUTION; SPECTRAL TYPES; GALAXY; SYSTEM; STARS; HALO; VELOCITIES; KINEMATICS; DENSITY;
D O I：
10.1134/S1063772919120023
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Results of a study of the kinematic and chemical properties of globular clusters of the Milky Way based on data from the Gaia DR2 catalog and meaurements with the Hubble Space Telescope are presented. A new method for dividing globular clusters into Galatic subsystems based on the elements of their Galactic orbits is proposed. Samples of globular clusters belonging to the bar/bulge, thick disk, and halo of the Milky Way are obtained. The mean metallicities of the globular clusters in various subsystems are calculated. The mean metallicities of globular clusters of the thick disk and halo display statistically significant differences. At the same time, no statistically significant differences are present between the mean metallicities of halo globular clusters moving in the direction of rotation of the Galactic disk and those moving in the retrograde direction. This argues against the suggestion that retrograde and prograde globular clusters have different origins.
引用
收藏
页码：998 / 1009
页数：12
相关论文
共 50 条
  • [21] Milky Way Cepheid Standards for Measuring Cosmic Distances and Application to Gaia DR2: Implications for the Hubble Constant
    Riess, Adam G.
    Casertano, Stefano
    Yuan, Wenlong
    Macri, Lucas
    Bucciarelli, Beatrice
    Lattanzi, Mario G.
    MacKenty, John W.
    Bowers, J. Bradley
    Zheng, WeiKang
    Filippenko, Alexei V.
    Huang, Caroline
    Anderson, Richard I.
    ASTROPHYSICAL JOURNAL, 2018, 861 (02)
  • [22] Features of the Residual Velocity Ellipsoid of Hot Subdwarfs from the Gaia DR2 Catalog
    Bobylev, V. V.
    Bajkova, A. T.
    ASTRONOMY REPORTS, 2019, 63 (11) : 932 - 943
  • [23] Mass and shape of the Milky Way's dark matter halo with globular clusters from Gaia and Hubble
    Posti, Lorenzo
    Helmi, Amina
    ASTRONOMY & ASTROPHYSICS, 2019, 621
  • [24] Age determination for 269 Gaia DR2 open clusters
    Bossini, D.
    Vallenari, A.
    Bragaglia, A.
    Cantat-Gaudin, T.
    Sordo, R.
    Balaguer-Nunez, L.
    Jordi, C.
    Moitinho, A.
    Soubiran, C.
    Casamiquela, L.
    Camera, R.
    Heiter, U.
    ASTRONOMY & ASTROPHYSICS, 2019, 623
  • [25] Multiple populations in globular clusters Lessons learned from the Milky Way globular clusters
    Gratton, Raffaele G.
    Carretta, Eugenio
    Bragaglia, Angela
    ASTRONOMY AND ASTROPHYSICS REVIEW, 2012, 20 : 1 - 49
  • [26] The stellar distribution function and local vertical potential from Gaia DR2
    Li, Haochuan
    Widrow, Lawrence M.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2021, 503 (02) : 1586 - 1598
  • [27] In Disguise or Out of Reach: First Clues about In Situ and Accreted Stars in the Stellar Halo of the Milky Way from Gaia DR2
    Haywood, M.
    Di Matteo, P.
    Lehnert, M. D.
    Snaith, O.
    Khoperskov, S.
    Gomez, A.
    ASTROPHYSICAL JOURNAL, 2018, 863 (02)
  • [28] Blue straggler populations of seven open clusters with Gaia DR2
    Vaidya, Kaushar
    Rao, Khushboo K.
    Agarwal, Manan
    Bhattacharya, Souradeep
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 496 (02) : 2402 - 2421
  • [29] Multiple populations in globular clustersLessons learned from the Milky Way globular clusters
    Raffaele G. Gratton
    Eugenio Carretta
    Angela Bragaglia
    The Astronomy and Astrophysics Review, 2012, 20
  • [30] On the Motion of Stars in the Pleiades According to Gaia DR2 Data
    Danilov, V. M.
    Seleznev, A. F.
    ASTROPHYSICAL BULLETIN, 2020, 75 (04) : 407 - 424
12345