Five New Globular Clusters Discovered in the Galactic Bulge
Five New Globular Clusters Discovered in the Galactic Bulge
复制标题
在银河核球中发现了五个新的球状星团
DOI：
10.3847/2041-8213/aacc68
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
D. Camargo
中科院分区：
文献类型：
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作者：
D. Camargo
这封信报告了在银河系凸起(Camargo 1102,1103,1104,1105和1106)中使用广域红外巡天探测器(WISE)图像发现的五个新的球状星团(GC)。用2MASS和GIA二次数据释放(DR2)光度法确定了它们的性质。新发现的是距离银河系中心不到4kpc的古老的、金属贫乏的GC。卡玛戈1102似乎位于银河系背面的银河系酒吧上方，垂直距离低于1kpc。其他四个星系团位于更靠近银河系中面的位置。古老的年龄和低的金属度表明，新发现的GC可能为早期内银河系的形成及其后续演化以及现今的隆起结构和运动学提供重要线索。
This Letter reports the discovery of five new globular clusters (GCs) in the Galactic bulge (Camargo 1102, 1103, 1104, 1105, and 1106) using Wide-field Infrared Survey Explorer (WISE) images. Their natures are established by using 2MASS and Gaia second data release (DR2) photometry. The new findings are old and metal-poor GCs located less than 4 kpc from the Galactic center. Camargo 1102 seems to be located over the Galactic bar on the far side of the Milky Way and at a vertical distance lower than 1 kpc. The other four clusters lie even closer to the Milky Way mid-plane. The old ages and low metallicities suggest that the newly discovered GCs may have the potential of providing important clues on the early inner Galaxy formation and its subsequent evolution, as well as the current bulge structure and kinematics.
关于Hempel距离实现问题
DOI：
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发表时间：
2018
期刊：
影响因子：
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作者：
Ayako Ido;Yeonhee Jang and Tsuyoshi Kobayashi;井戸絢子
通讯作者：
井戸絢子