An Atlas of Galaxies in the Near Infrared: A Study of Structure and Stellar Content

星系的多波长巡天对于研究结构和恒星含量具有重要意义。这项即将进行的研究将是利用俄亥俄州立大学开发的宽视场红外和光学成像系统对螺旋星系进行一项新的、广泛的调查。红外观测是这次调查的关键，因为红外光比可见光更能显示恒星质量分布，而且尘埃内部吸收的影响最小。光度法和红外长缝光谱法将用于研究恒星含量与位置的关系，包括识别活跃恒星形成区域。尘埃的散射和吸收对观测到的星系亮度和颜色的影响将被研究。

Multiwavelength surveys of galaxies are of great importance for investigations of structure and stellar content. The research to be carried out will be a new, extensive survey of spiral galaxies using wide-field infrared and optical imaging systems developed at The Ohio State University. Infrared observations are key to this survey because infrared light is a better tracer of the stellar mass distribution than optical light and the effects of internal absorption by dust are minimized. Photometry and infrared long-slit spectroscopy will be used to study the dependence of stellar content on position, including the identification of regions of active star formation. The effects of scattering and absorption by dust on the observed luminosity and color of a galaxy will be investigated.