The radial gradient of heavy-element abundances in disk galaxies View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2001-11

AUTHORS

D. S. Wiebe, A. V. Tutukov, B. M. Shustov

ABSTRACT

Various origins for the formation of the heavy-element abundance gradients observed in nearly all disk galaxies are analyzed in the framework of evolutionary models. In an isolated galaxy, there is a radial gradient of the abundance of heavy elements only early in its evolution (the first several billion years), which subsequently practically disappears. The gradients of chemical compositions of young objects and the interstellar gas require that typical disk galaxies be open systems (i.e., that they eject some heavy elements into circumgalactic space and/or accrete intergalactic gas) and that the rates of both processes be dependent on galactocentric distance. More... »

PAGES

854-860

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/1.1416273

DOI

http://dx.doi.org/10.1134/1.1416273

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1009035052


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