Concept information
Terme préférentiel
irregular galaxy
Définition(s)
- An irregular galaxy is a galaxy, with a poorly-defined structure, that falls outside the categories of disk galaxy or elliptical galaxy. Only about 3% of observed galaxies fall into this category. Two main types are recognized in the Hubble classification scheme. Type Irr I galaxies are less massive (10⁸to 10¹⁰ solar masses) than large ellipticals or spirals and often have a high gas content and show evidence of extensive star formation. Type Irr II galaxies make up a catchall group that may, in some cases, include interacting and merging systems. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/I/irregular_galaxy.html)
Concept(s) générique(s)
Concept(s) spécifique(s)
Traductions
-
français
URI
http://data.loterre.fr/ark:/67375/MDL-JC33RX73-T
{{label}}
{{#each values }} {{! loop through ConceptPropertyValue objects }}
{{#if prefLabel }}
{{/if}}
{{/each}}
{{#if notation }}{{ notation }} {{/if}}{{ prefLabel }}
{{#ifDifferentLabelLang lang }} ({{ lang }}){{/ifDifferentLabelLang}}
{{#if vocabName }}
{{ vocabName }}
{{/if}}