NGC 5694: another foster son of the Galactic halo

NGC 5694: another foster son of the Galactic halo
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NGC 5694:银河光环的另一个养子

DOI:
10.1093/mnras/stt1558
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发表时间:
2013
影响因子:
4.8
通讯作者:
V. D’Orazi
V. D’Orazi
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
A. Mucciarelli;M. Bellazzini;M. Catelán;E. Dalessandro;P. Amigo;M. Correnti;C. Cort'es;V. D’Orazi

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利用UVESFLAMES@VLT对外晕贫金属([Fe/H]I=1.98和[Fe/H]II=-1.83)球状星团NGC 5694中的6颗红巨星分支星进行了高分辨率光谱分析,Lee等人(2006)基于单个星团巨星的异常化学成分提出了该星团可能的新成员。我们获得了大量元素的精确丰度,我们发现:(a)除了Na和Al之外,六颗目标星在不确定性范围内具有相同的化学成分;(B)平均星团-
We present the results of the analysis of high-resolution spectra obtained with UVESFLAMES@VLT for six red giant branch stars in the outer-halo metal-poor ([Fe/H]I=1.98 and [Fe/H]II=-1.83) Galactic globular cluster NGC 5694, which has been suggested as a possible incomer by Lee et al. (2006) based on the anomalous chemical composition of a single cluster giant. We obtain accurate abundances for a large number of elements and we find that: (a)the six target stars have the same chemical composition within the uncertainties, except for Na and Al; (b) the average cluster — — — —
DOI: 10.1086/588032
发表时间: 2007-05
期刊: The Astrophysical Journal
影响因子: --
作者:
E. Bell;D. Zucker;V. Belokurov;Sanjib Sharma;K. Johnston;J. Bullock;D. Hogg;K. Jahnke;J. D.
通讯作者: E. Bell;D. Zucker;V. Belokurov;Sanjib Sharma;K. Johnston;J. Bullock;D. Hogg;K. Jahnke;J. D.