Concept information
Terme préférentiel
Zanstra temperature
Définition
- The Zanstra method is a method to determine the temperature of central stars of planetary nebulae. It was developed by Herman Zanstra in 1927. It is assumed that the nebula is optically thick in the Lyman continuum, which means that all ionizing photons from the central star are absorbed inside the nebula. Based on this assumption, the intensity ratio of a stellar reference frequency to a nebular line such as Hβ can be used to determine the central star's effective temperature. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Zanstra_method)
Concept générique
Synonyme(s)
- Zanstra method
Traductions
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français
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méthode de Zanstra
URI
http://data.loterre.fr/ark:/67375/MDL-P68C42PJ-L
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