论文标题
年轻恒星种群的空间规律性在晚期类型星系NGC 895，NGC 5474和NGC 6946的螺旋臂中
Spatial regularity of the young stellar population in spiral arms of late type galaxies NGC 895, NGC 5474, and NGC 6946
论文作者
论文摘要
我们研究了沿三个晚期螺旋星系的螺旋臂的年轻恒星种群分布的空间规律性：NGC 895，NGC 5474和NGC 6946。这项研究基于使用{\ it galex} torperal Inflociolet，iflrry Ubvri，IRAC，IRRAC和8MMARPORTION，IRRRRER RACHA，以及8MMIRPHA，以及8MMALPHA和8MMALPHA，以及8MMATIC的分析 数据。使用傅立叶分析方法，我们发现了在NGC 895，NGC 5474和NGC 6946的所有臂中，在年轻恒星种群的分布中，在年轻恒星种群的分布或（和）恒星形成区域的定期链中发现了空间规律性或准常规性的特征。这些特征量表接近NGC 628，NGC 6217和M100的早期量表。
We investigate the spatial regularity in the distribution of the young stellar population along spiral arms of three late type spiral galaxies: NGC 895, NGC 5474, and NGC 6946. This study is based on an analysis of photometric properties of spiral arms using {\it GALEX} ultraviolet, optical UBVRI, Halpha, and 8mum {IRAC} infrared surface photometry data. Using the Fourier analysis approach, we found features of spatial regularity or quasi-regularity in the distribution of the young stellar population or (and) regular chains of star formation regions in all arms of NGC 895, NGC 5474, and NGC 6946 with characteristic scales of spacing from 350 to 500 pc in different arms, and (or) scales which are multiples of them. These characteristic scales are close to the those found earlier in NGC 628, NGC 6217, and M100.
