搜索结果: 1-1 共查到“天体测量学 active”相关记录1条 . 查询时间(0.14 秒)
Detection of jet precession in the active nucleus of M81
Galaxies: Individual: M81 – galaxies: active – galaxies: jets – galaxies: nuclei – radio continuum: galaxies–radiation mechanisms: nonthermal – astrometry
2011/9/27
(See the complete and formatted abstract in the paper). We report on VLBI monitoring of the low-luminosity AGN (LLAGN) in M81 at 1.7, 2.3, 5, and 8.4GHz. These observations are phase-referenced to the...