Back to Volume
Paper: Raman Scattered He II 6545 in the Planetary Nebula NGC 6790
Volume: 451, 9th Pacific Rim Conference on Stellar Astrophysics
Page: 179
Authors: Lee, H.
Abstract: In the high resolution spectra of the planetary nebula NGC 6790 we detected Raman scattered He II 6545, which is formed through inelastic scattering of He II 1025 by atomic hydrogen. From a Monte Carlo profile analysis, an excellent fit is obtained under the assumption that HI component surrounds the central hot star with more than 50 percent expanding with a velocity 15-19 km per second. We also discuss the possibility that the He II emission region may possess a ring-type rotation motion with a speed about 18 km per second.
Back to Volume