Galactic Kinematics Based on Revised Hipparcos Cepheids

摘要：

On the basis of new zero-point of PL relation from 215 revised Hipparcos Cepheids data recently published by van Leeuwen, the galactocentric distance of the sun was derived via an axisymmetric kinematical model. With the estimation of Ro = 8.0 + 0.8 kpc, the rotation curve in solar neighborhood was plotted. The existence of the weak ellipticity of the Galactic potential was found.

关键词： variables Cepheids - Galaxy kinematics and dynamics

作者: Ming Shen Zi Zhu

作者单位: Department of Astronomy, Nanjing University, China

会议类型: 国际会议

会议名称: The 10th Asian-Pacific Regional International Astronomical Union Meeting(第十届亚洲及太平洋地区天文学大会 APRIM)

会议地点: 昆明

会议语种:英文

页码: 162-163

在线出版日期: 2008-08-03（万方平台首次上网日期，不代表论文的发表时间）