 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • COPYRIGHT • NEWSLETTER   
|
microturbulence
Small-scale motions (up to 5 km/s) in a stellar atmosphere that broaden the star's spectral lines and may contribute to their effective width. In practice, astronomers may attribute any broadening of a spectral line, not accounted for by known causes, such as motions of the emitting atoms, to microturbulence, whether or not it is actually present. Compare with macroturbulence.
Related category
• STELLAR ASTROPHYSICSAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History