Both images were made using narrowband filters and different color mappings .

两张照片都用窄波段滤光镜和不同颜色映射。

Research on uwb coexistence with narrowband systems - 21ic .

uwb系统与窄带系统共存研究。

The sharp image , made using broadband and narrowband filters , captures striking details of the nebula 's filamentary structures . It shows off a blue-green color from strong emission due to oxygen atoms in the glowing gas .

这张成像锐利的照片，用宽带和窄带滤光镜制作，捕捉到星云显著的细丝状结构的细节，它突出了在发光气体中强烈的氧原子发射的蓝绿色。