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• Zanstra_method abstract "The Zanstra method is a method to determine the temperature of central stars of planetary nebula.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 nebula line such as Hβ can be used to determine the central star's effective temperature.".
• Zanstra_method thumbnail NGC7293_(2004).jpg?width=300.
• Zanstra_method wikiPageID "28281942".
• Zanstra_method wikiPageRevisionID "580059603".
• Zanstra_method hasPhotoCollection Zanstra_method.
• Zanstra_method subject Category:Astrophysics.
• Zanstra_method subject Category:Nebulae.
• Zanstra_method subject Category:Planetary_nebulae.
• Zanstra_method type Abstraction100002137.
• Zanstra_method type Chemical114806838.
• Zanstra_method type Compound114818238.
• Zanstra_method type Formulation114873641.
• Zanstra_method type Material114580897.
• Zanstra_method type Matter100020827.
• Zanstra_method type Nebula114960606.
• Zanstra_method type Nebulae.
• Zanstra_method type Part113809207.
• Zanstra_method type PhysicalEntity100001930.
• Zanstra_method type Relation100031921.
• Zanstra_method type Substance100019613.
• Zanstra_method comment "The Zanstra method is a method to determine the temperature of central stars of planetary nebula.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 nebula line such as Hβ can be used to determine the central star's effective temperature.".
• Zanstra_method label "Zanstra method".
• Zanstra_method sameAs m.0cn_449.
• Zanstra_method sameAs Q8066270.
• Zanstra_method sameAs Q8066270.
• Zanstra_method sameAs Zanstra_method.
• Zanstra_method wasDerivedFrom Zanstra_method?oldid=580059603.
• Zanstra_method depiction NGC7293_(2004).jpg.
• Zanstra_method isPrimaryTopicOf Zanstra_method.