No CrossRef data available.
Article contents
Physical Conditions and Abundances in Abell 30
Published online by Cambridge University Press: 26 May 2016
Extract
Abell 30 is one of a small number of PN known as born-again PN, which appear to be old nebulae whose central star has undergone a further ejection of highly processed material. It consists of a large, faint, spherical shell, in which several bright knots are embedded. The knots were first noted by Jacoby (1979), and analysis of their abundances by Hazard et al (1980) and Jacoby & Ford (1983) showed that they are extremely hydrogen-deficient.
- Type
- Part VI: The Ionized Gas in Planetary Nebulae
- Information
- Copyright
- Copyright © Astronomical Society of the Pacific 2003