Analysis reveals low asymmetry and unique concentration indices in dwarf spiral galaxies, suggesting correlations with stellar mass.
We analyzed the asymmetry and concentration parameters in a sample of late-type spiral galaxies using V and R broadband images. Asymmetry values were computed for different rotation angles and radii, revealing low asymmetry overall, with smaller values in the inner regions. No preferred angle significantly affected the asymmetry measurements. The concentration indices lie between those of large spirals and irregular galaxies. We compared our sample distribution in the 𝐶−𝐴 plane with other late-type systems (dwarfs and normal spirals). Additionally, we explored the correlations between asymmetry and star formation rate and between concentration and stellar mass, contrasting our results with those of prior studies.
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Vega-Acevedo et al. (2025) studied this question.
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