AI 中文总结
本研究借助ASTROSAT/UVIT对四个行星状星云成像，采用新颖的扇区结构分析技术，明确了它们的FUV形态，为行星状星云的结构分类提供了观测依据。
AI 中文摘要
利用ASTROSAT搭载的紫外成像望远镜（UVIT）的远紫外（FUV）滤光片F148W（有效波长λ_eff=1481埃），对四个行星状星云（PNe）——Jonckheere 320、NGC 2610、A 6672和PRTM 1——进行了成像。FUV图像显示这些星云的明亮中心恒星周围存在微弱的延展发射结构。研究采用了一种新颖的基于扇区的结构分析技术来研究行星状星云的详细FUV形态，该方法为每个星云计算扇区强度并用于对其结构进行分类。结果表明，Jonckheere 320呈现多极形态，NGC 2610和PRTM 1显示球形结构，而A 6672在FUV中表现出不规则或椭圆特征。
英文摘要
Four planetary nebulae (PNe), Jonckheere 320, NGC 2610, A 6672, and PRTM 1, have been imaged in the far-ultraviolet (FUV) filter F148W ($λ_{\mathrm {eff}} = 1481\, \mathring{A} $) using the Ultraviolet Imaging Telescope (UVIT) onboard ASTROSAT. The FUV images reveal faint extended emission structures surrounding the bright central star. A novel sector-based structural analysis technique was employed to examine the detailed FUV morphologies of PNe. In this method, sector strengths were calculated for each nebula and used to classify their structures. Our results show that Jonckheere 320 exhibits a polypolar morphology, while NGC 2610 and PRTM 1 display spherical structures. In contrast, A 6672 shows irregular or elliptical features in the FUV.
Comments8 pages, 2 figures, 2 tables, accepted in Bulletin de la Société Royale des Sciences de Liège
