Iron Depletion in ionized Nebulae of the Large Magellanic Cloud

TL;DR

This study investigates iron depletion in ionized nebulae of the Large Magellanic Cloud, comparing it with Galactic nebulae to understand dust grain formation and metallicity effects.

Contribution

It provides the first comparative analysis of iron depletion in LMC nebulae relative to Galactic counterparts, highlighting metallicity influences.

Findings

Iron depletion levels in LMC nebulae are similar to Galactic nebulae.

Lower metallicity objects tend to have lower iron depletion.

More data is needed to confirm the metallicity-depletion trend.

Abstract

We present here preliminary results of an analysis of the iron abundance in the ionized gas of three planetary nebulae and one H II region of the Large Magellanic Cloud (LMC). These results are compared with the ones we obtain for a sample of Galactic and extragalactic nebulae. We find that the amounts of iron depletion into dust grains in LMC nebulae are similar to those found in Galactic nebulae. Objects with lower metallicities show lower depletions, but a larger sample of objects is needed to explore the reasons behind this trend.