Kinematics and chemical abundances of metal-poor stars in the Galactic outer halo

被引：0
|
作者：
Ishigaki, M. [1 ]
Chiba, M. [1 ]
Aoki, W. [2 ]
机构：
[1] Tohoku Univ, Astron Inst, Aoba Ku, Sendai, Miyagi 9808578, Japan
[2] Natl Astron Observ Japan, Tokyo 1818588, Japan
来源：
ASTRONOMISCHE NACHRICHTEN | 2008年 / 329卷 / 9-10期
关键词：
Galaxy: abundances; Galaxy: halo; stars: abundances;
D O I：
10.1002/asna.200811063
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A survey of chemical abundances for Galactic metal-poor stars, which are likely constituents of the outer part of the halo, is currently in progress. The sample analysed so far is comprised of 26 metal-poor ([Fe/H] < -1) stars, whose estimated orbits reach >5 kpc above and below the Galactic plane. Using these sample stars selected based on their kinematics, we carried out the high-resolution spectroscopy with Subaru/HDS and obtained their chemical abundances. The detailed abundance pattern of the outer halo stars has important clues for the progenitor systems populating the Galactic outer halo. The current status of our survey is reported. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：1073 / 1075
页数：3
相关论文
共 50 条
  • [31] Oxygen abundances in metal-poor stars
    Barbuy, B
    Meléndez, J
    CNO IN THE UNIVERSE, 2003, 304 : 88 - 94
  • [32] Chemical abundances of three metal-poor globular clusters in the inner halo
    Lee, J. -W.
    Carney, Bruce W.
    CHEMICAL ABUNDANCES AND MIXING IN STARS IN THE MILKY WAY AND ITS SATELLITES, 2006, : 142 - +
  • [33] Abundances for metal-poor stars with accurate parallaxes -: II.: α-elements in the halo
    Gratton, RG
    Carretta, E
    Desidera, S
    Lucatello, S
    Mazzei, P
    Barbieri, M
    ASTRONOMY & ASTROPHYSICS, 2003, 406 (01) : 131 - 140
  • [34] THE CHEMICAL ABUNDANCES OF STARS IN THE HALO (CASH) PROJECT. II. A SAMPLE OF 14 EXTREMELY METAL-POOR STARS
    Hollek, Julie K.
    Frebel, Anna
    Roederer, Ian U.
    Sneden, Christopher
    Shetrone, Matthew
    Beers, Timothy C.
    Kang, Sung-ju
    Thom, Christopher
    ASTROPHYSICAL JOURNAL, 2011, 742 (01):
  • [35] KINEMATICS OF METAL-POOR STARS IN THE GALAXY
    BEERS, TC
    SOMMERLARSEN, J
    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1995, 96 (01): : 175 - 221
  • [36] Pan Binary Scenario for the Origin of Extremely Metal-Poor Stars in the Galactic Halo
    Suda, T.
    Komiya, Y.
    Habe, A.
    Yamada, S.
    Katsuta, Y.
    Nishimura, T.
    Ishizuka, C.
    Fujimoto, M. Y.
    BINARIES - KEY TO COMPREHENSION OF THE UNIVERSE, 2010, 435 : 161 - +
  • [37] CHEMICAL ABUNDANCES OF METAL-POOR RR LYRAE STARS IN THE MAGELLANIC CLOUDS
    Haschke, Raoul
    Grebel, Eva K.
    Frebel, Anna
    Duffau, Sonia
    Hansen, Camilla J.
    Koch, Andreas
    ASTRONOMICAL JOURNAL, 2012, 144 (03):
  • [38] Comparing chemical abundances of the damped Lyα systems and metal-poor stars
    Prochaska, Jason X.
    HIGHLIGHTS OF ASTRONOMY, VOL 13, 2005, 13 : 536 - 541
  • [39] Implications of O and Mg abundances in metal-poor halo stars for stellar iron yields
    Argast, D
    Samland, M
    Thielemann, FK
    Gerhard, OE
    ASTRONOMY & ASTROPHYSICS, 2002, 388 (03) : 842 - 860
  • [40] JIN Abase-A Database for Chemical Abundances of Metal-poor Stars
    Abohalima, Abdu
    Frebel, Anna
    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2018, 238 (02):
12345