Article contents
The “21” μm and “30” μm Emission Features in Planetary Nebulae with Wolf-Rayet Central Stars
Published online by Cambridge University Press: 26 May 2016
Abstract
We present mid infrared spectra of two planetary nebulae with H poor central stars that exhibit the “21” and “30” μm emission features. These features are found in carbon rich dust surroundings. The presence of these features shows that these sources have suffered an extended period of carbon rich mass loss before becoming H poor. We discuss the occurrence of both O-rich and C-rich dust in the sample of planetary nebulae observed with the Infrared Space Observatory.
- Type
- Part V: Dust and Molecules in Planetary Nebulae
- Information
- Copyright
- Copyright © Astronomical Society of the Pacific 2003
References
- 1
- Cited by