论文标题
双极行星星云的首选方向角度
A Preferred Orientation Angle for Bipolar Planetary Nebulae
论文作者
论文摘要
我们通过测量香港/澳大利亚天文天文台/Strasbourg天文台H-Alpha行星星云（Hash）研究平台和数据库（Parker等人（Parker等人）（Parker等。对于椭圆形PNE，发现方向角的分布基本均匀。但是，对于双极PNE，在整个星系中有统计学上有显着的证据表明优选方向角度（如以前有较小的样品报道）。
We present preliminary results from measuring Galactic orientation angles of 800 elliptical and bipolar Planetary Nebulae (PNe) in the Hong Kong/Australian Astronomical Observatory/Strasbourg Observatory H-alpha Planetary Nebula (HASH) research platform and database (Parker et al. [1], [2]). For elliptical PNe the distribution of orientation angles is found to be essentially uniform. However, for bipolar PNe there is statistically significant evidence for preferred orientation angles (as tentatively reported before with smaller samples) across the whole Galaxy.
