Verification of Hypervelocity Bulge Red Clump Stars

被引：0
|
作者：
Wojtkowska, Gabriela [1 ]
Poleski, Radoslaw [1 ]
机构：
[1] Univ Warsaw, Astron Observ, Ujazdowskie 4, PL-00478 Warsaw, Poland
来源：
ASTRONOMICAL JOURNAL | 2024年 / 167卷 / 05期
关键词：
GRAVITATIONAL LENSING EXPERIMENT; GALACTIC BULGE; PROPER MOTIONS; ASTROPY; PHOTOMETRY; PACKAGE; PROJECT; FIELDS; PHASE; VVV;
D O I：
10.3847/1538-3881/ad3107
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We verify candidate hypervelocity red clump stars located in the Galactic bulge that were selected based on the VVV and the Gaia DR2 data by Luna et al. To do so, we analyze data from the OGLE-IV survey: difference images and astrometric time series. We have data for 30 stars out of 34 hypervelocity candidates. We confirmed the high proper motion of only one of these stars and find out that it is a nearby one, hence, not a hypervelocity star. To sum up, we do not confirm the candidate stars as hypervelocity ones. Hence, we disprove the production rate of hypervelocity red clump stars by the central supermassive black hole provided by Luna et al.
引用
收藏
页数：8
相关论文
共 50 条
  • [41] On the Age Calibration of Open Clusters Using Red Clump Stars
    Chriss, Abigail R.
    Worthey, Guy
    ASTRONOMICAL JOURNAL, 2025, 169 (02):
  • [42] Distances of Galactic Supernova Remnants Using Red Clump Stars
    Shan, S. S.
    Zhu, H.
    Tian, W. W.
    Zhang, M. F.
    Zhang, H. Y.
    Wu, D.
    Yang, A. Y.
    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2018, 238 (02):
  • [43] Kinematics of Tycho-2 red giant clump stars
    Bobylev, V. V.
    Stepanishchev, A. S.
    Bajkova, A. T.
    Gontcharov, G. A.
    ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2009, 35 (12): : 836 - 849
  • [44] Metal abundance of red clump stars in Baade's window
    Kubiak, M
    McWilliam, A
    Udalski, A
    Görski, K
    ACTA ASTRONOMICA, 2002, 52 (02): : 159 - 175
  • [45] Elemental abundances of RGB and red clump stars in the Kepler field
    Liu, Y. J.
    Wang, L.
    Takeda, Y.
    Kumar, Y. Bharat
    Zhao, G.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 482 (03) : 4155 - 4173
  • [46] Red Clump stars in Kepler open cluster NGC 6819
    Abedigamba, O. P.
    Balona, L. A.
    Medupe, T. R.
    SPACE PHOTOMETRY REVOLUTION - COROT SYMPOSIUM 3, KEPLER KASC-7 JOINT MEETING, 2015, 101
  • [47] The core of the Canis Major galaxy as traced by red clump stars
    Bellazzini, M
    Ibata, R
    Martin, N
    Lewis, GF
    Conn, B
    Irwin, MJ
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 366 (03) : 865 - 883
  • [48] Kinematics of Tycho-2 red giant clump stars
    V. V. Bobylev
    A. S. Stepanishchev
    A. T. Bajkova
    G. A. Gontcharov
    Astronomy Letters, 2009, 35 : 836 - 849
  • [49] Weighing the local dark matter with RAVE red clump stars
    Bienayme, O.
    Famaey, B.
    Siebert, A.
    Freeman, K. C.
    Gibson, B. K.
    Gilmore, G.
    Grebel, E. K.
    Bland-Hawthorn, J.
    Kordopatis, G.
    Munari, U.
    Navarro, J. F.
    Parker, Q.
    Reid, W.
    Seabroke, G. M.
    Siviero, A.
    Steinmetz, M.
    Watson, F.
    Wyse, R. F. G.
    Zwitter, T.
    ASTRONOMY & ASTROPHYSICS, 2014, 571
  • [50] Measuring distances to Galactic SNRs using the red clump stars
    Shan, S. S.
    Wu, D.
    Zhu, H.
    Zhang, M. F.
    Tian, W. W.
    SUPERNOVA 1987A: 30 YEARS LLATER - COSMIC RAYS AND NUCLEI FROM SUPERNOVAE AND THEIR AFTERMATHS, 2017, 12 (S331): : 216 - 219
12345