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
  • [31] The Influence of the Bar on the Dynamics of Globular Clusters in the Central Region of the Milky Way. Frequency Analysis of Orbits According to Gaia EDR3 Data
    Bajkova, A. T.
    Smirnov, A. A.
    Bobylev, V. V.
    ASTROPHYSICAL BULLETIN, 2023, 78 (04) : 499 - 513
  • [32] Gaia DR2 orbital properties for field stars with globular cluster-like CN band strengths
    Savino, A.
    Posti, L.
    ASTRONOMY & ASTROPHYSICS, 2019, 624
  • [33] The escape of globular clusters from the satellite dwarf galaxies of the Milky Way
    Shirazi, Ali Rostami
    Haghi, Hosein
    Khalaj, Pouria
    Asl, Ahmad Farhani
    Zonoozi, Akram Hasani
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2022, 513 (03) : 3526 - 3540
  • [34] Using Gaia DR2 to detect extratidal structures around the Galactic globular cluster NGC362
    Carballo-Bello, Julio A.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 486 (02) : 1667 - 1671
  • [35] Galactic Rotation Based on OB Stars from the Gaia DR2 Catalogue
    Bobylev, V. V.
    Bajkova, A. T.
    ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2019, 45 (06): : 331 - 340
  • [36] The Milky Way has no in-situ halo other than the heated thick disc Composition of the stellar halo and age-dating the last significant merger with Gaia DR2 and APOGEE
    Di Matteo, P.
    Haywood, M.
    Lehnert, M. D.
    Katz, D.
    Khoperskov, S.
    Snaith, O. N.
    Gomez, A.
    Robichon, N.
    ASTRONOMY & ASTROPHYSICS, 2019, 632
  • [37] Kinematics of Hot Subdwarfs from the Gaia DR2 Catalogue
    V. V. Bobylev
    A. T. Bajkova
    Astronomy Letters, 2019, 45 : 580 - 592
  • [38] Inferring the parallax of Westerlund 1 from Gaia DR2
    Aghakhanloo, Mojgan
    Murphy, Jeremiah W.
    Smith, Nathan
    Parejko, John
    Diaz-Rodriguez, Mariangelly
    Drout, Maria R.
    Groh, Jose H.
    Guzman, Joseph
    Stassun, Keivan G.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 492 (02) : 2497 - 2509
  • [39] Milky Way Dark Matter Distribution or MOND Test from Vertical Stellar Kinematics with Gaia DR3
    Lopez-Corredoira, Martin
    ASTROPHYSICAL JOURNAL, 2025, 978 (01)
  • [40] The fastest travel together: chemical tagging of the fastest stars in Gaia DR2 to the stellar halo
    Hawkins, Keith
    Wyse, Rosemary F. G.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 481 (01) : 1028 - 1040
12345