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Keywords

galaxies: dwarf
HII regions
ISM: abundances

How to Cite

Chemical abundances of dwarf spiral galaxies. (2011). Revista Mexicana De Astrofísica Y Astronomía Serie De Conferencias, 40(1), 60-61. https://astronomia.unam.mx/journals/rmxac/article/view/2011rmxac..40...60h
hola

Abstract

The oxygen abundances of 18 dwarf spiral galaxies are presented. In most of them, the abundance are determined with semi empirical methods. We find that the values are sub-solar for most of the galaxies, similar to those observed in other late-type galaxies, as BCG or dwarf irregular. The abundance gradient can be determined in four of these galaxies, one of them a barred one. The gradients of the three non-barred galaxies in the sample are larger than -0.15 dex/kpc, while the gradient of the barred galaxy is shallower, only -0.1 dex/kpc.