The hydrogen-depleted planetary nebulae Abell 30 and Abell 78

• 1 March 1983
• journal article
• Published by American Astronomical Society in The Astrophysical Journal
• Vol. 266, 298-308
• https://doi.org/10.1086/160779

Abstract

Keywords

• DATA ANALYSIS
• PLANETARY NEBULA
• RELATIVE ABUNDANCE
• QUANTUM MECHANICS
• CHEMICAL COMPOSITION
• ELECTRON DENSITY