DOES THE STELLAR DISTRIBUTION FLARE? A COMPARISON OF STELLAR SCALE HEIGHTS WITH LAB H i DATA
DOES THE STELLAR DISTRIBUTION FLARE? A COMPARISON OF STELLAR SCALE HEIGHTS WITH LAB H i DATA
复制标题
DOI：
10.1088/0004-637x/794/1/90
复制
发表时间：
2014-08
期刊：
影响因子：
--
通讯作者：
P. Kalberla;J. Kerp;L. Dedes;U. Haud
中科院分区：
文献类型：
--
作者：
P. Kalberla;J. Kerp;L. Dedes;U. Haud
银河系中的恒星群是否参与了 H i 气体观测到的尺度高度的耀斑，这一问题仍存在争议。银河系的标准质量模型假设每个不同的恒星分布具有恒定的尺度高度。然而，越来越多的证据表明，至少有一些恒星分布在较大的银心距离处达到高海拔，这与恒定的尺度高度不相容。我们讨论了最近恒星耀斑的观测证据，并将其与莱顿/阿根廷/波恩调查的 Hi 数据进行比较。在系统性和统计不确定性的范围内，我们发现两者之间有很好的一致性。
The question of whether the stellar populations in the Milky Way take part in the flaring of scale heights as observed for the H i gas is a matter of debate. Standard mass models for the Milky Way assume a constant scale height for each of the different stellar distributions. However, there is mounting evidence that at least some of the stellar distributions reach, at large galactocentric distances, high altitudes, which are incompatible with a constant scale height. We discuss recent observational evidence for stellar flaring and compare it with H i data from the Leiden/Argentine/Bonn survey. Within the systemic and statistical uncertainties we find a good agreement between both.