The Effect of Corotation on the Radial Gradient of Metallicity of Spiral Galaxies
S. Scarano Jr., J.R.D. Lepine
TL;DR
This study investigates how the corotation radius influences the metallicity gradient in spiral galaxies, revealing a strong correlation between metallicity inflections and corotation radius across multiple galaxies.
Contribution
It provides the first comprehensive analysis linking corotation radius to metallicity gradient features in a sample of 20 spiral galaxies.
Findings
Strong correlation between metallicity inflections and corotation radius
Metallicity minima often align with the corotation radius
Results support the role of corotation in shaping metallicity distribution
Abstract
The corotation radius in a spiral galaxy is the radius where the spiral pattern speed has the same velocity of the rotation curve. By compiling results from the literature for 20 spiral galaxies we verified a strong correlation between the radius of the minima or inflections of the metallicity distribution and the corotation radius.
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