Hen 2-155 and Hen 2-161 photometry and spectroscopy

We present a study of Hen 2-155 and Hen 2-161, two planetary nebulae which bear striking morphological similarities to other planetary nebulae known to host close-binary central...本研究针对Hen 2-155与Hen 2-161展开分析，这两个行星状星云（planetary nebulae）与已知拥有密近双星中心天体的其他行星状星云存在显著的形态学相似性。