The discovery of Raman scattering in H II regions
We report here on the discovery of faint extended wings of Hα observed out to an apparent velocity of ~7600 km s−1 in the Orion Nebula (M42) and in five H ii regions in the Large and the Small Magellanic Clouds. We show that these wings are caused by Raman scattering of both the O i and Si ii resonance lines and stellar continuum UV photons with H i followed by radiative decay to the H i n = 2 level. The broad wings also seen in Hβ and in Hγ result from Raman scattering of the UV continuum in...[Show more]
|Collections||ANU Research Publications|
|Source:||Astrophysical Journal Letters|
|01_Dopita_The_discovery_of_Raman_2016.pdf||515.97 kB||Adobe PDF|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.