从甚长基线干涉测量无线电数据看蝎虎座BL天体与类星体之间的可能联系。
Possible links between BL Lacertae objects and quasars from very long baseline interferometry radio data.
作者信息
Gabuzda D C
机构信息
Department of Physics and Astronomy, University of Calgary, Calgary, AB, Canada.
出版信息
Proc Natl Acad Sci U S A. 1995 Dec 5;92(25):11393-8. doi: 10.1073/pnas.92.25.11393.
Systematic differences in the very long baseline interferometry (VLBI) radio polarization structure and average VLBI component speeds of BL Lacertae objects and quasars support the view that the observational distinction between these classes, based in large part on the strength of their optical line emission, is meaningful; in other words, this distinction reflects significant differences in the physical conditions in these sources. Possible models providing a link between the optical and VLBI properties of BL Lacertae objects and quasars are discussed. Most VLBI polarization observations to date have been global observations made at 6 cm; recent results suggest that the VLBI polarization structure of some sources may change dramatically on scales smaller than those probed by these 6-cm observations.
蝎虎座BL天体和类星体在甚长基线干涉测量（VLBI）射电偏振结构以及平均VLBI分量速度方面的系统差异支持了这样一种观点，即很大程度上基于其光学谱线发射强度的这两类天体之间的观测差异是有意义的；换句话说，这种差异反映了这些天体物理条件的显著不同。文中讨论了能够在蝎虎座BL天体和类星体的光学和VLBI特性之间建立联系的可能模型。迄今为止，大多数VLBI偏振观测都是在6厘米波段进行的全天空观测；最近的结果表明，一些源的VLBI偏振结构在小于这些6厘米观测所探测尺度的范围内可能会发生显著变化。
Zotero 插件