期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 441, 期 2, 页码 1105-1114出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stu631
关键词
Galaxy: bulge; Galaxy: centre; Galaxy: fundamental parameters; globular clusters: general
We use recently updated globular cluster distances to estimate the distance to the Galactic Centre, finding 7.4 +/- 0.2|(stat) +/- 0.2|(sys) kpc from symmetry considerations, including a trough at the Galactic Centre and peaks denoting the position of the bar. We recalibrate the red clump magnitude from Hipparcos stars, finding a skew distribution and a significant difference between peak and mean magnitudes. We find an estimate from stars in the periphery of the bulge using 2MASS, R-0 = 7.5 +/- 0.3 kpc, in agreement with the figure from the halo centroid. We resolve discrepancies in the literature between estimates from the red clump. Our results are consistent with those found by different methodologies after taking systematic errors into account.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据