ARAUCARIA project: NGC 55 Cepheids JK magnitudes

We have obtained deep images in the near-infrared J and K filters of four fields in the Sculptor group spiral galaxy NGC 55 with the ESO VLT and ISAAC camera. For 40 long-period...我们使用欧洲南方天文台（European Southern Observatory）甚大望远镜（Very Large Telescope，VLT）及其搭载的ISAAC相机，对玉夫座星系群内螺旋星系NGC 55的四个天区获取了近红外J波段与K波段的深场图像。针对40个长周期...