Pa-beta, Ha and attenuation in NGC5194 & NGC6946

We combine Hubble Space Telescope Paschen {beta} (Pa{beta}) imaging with ground-based, previously published H{alpha} maps to estimate the attenuation affecting H{alpha},...我们将哈勃空间望远镜（Hubble Space Telescope）获取的帕邢β（Paschen β，Paβ）成像数据，与已发表的地基Hα（H-alpha）分布图相结合，以此估算影响Hα波段的消光效应。