The chemical composition of the Orion star forming region: stars, gas and dust

TL;DR

This paper reviews the chemical composition of the Orion star forming region by analyzing stars, gas, and dust, comparing stellar and nebular data, and relating findings to solar abundances.

Contribution

It provides a comprehensive reanalysis of Orion's chemical makeup using advanced models and compares stellar, nebular, and solar compositions for the first time.

Findings

Revised elemental abundances of B-type stars in Orion OB1

Comparison of stellar and nebular emission line spectra

Insights into the chemical evolution of the Orion region

Abstract

We present a summary of main results from the studies performed in the series of papers "The chemical composition of the Orion star forming region". We reinvestigate the chemical composition of B-type stars in the Orion OB1 association by means of state-of-the-art stellar atmosphere codes, atomic models and techniques, and compare the resulting abundances with those obtained from the emission line spectra of the Orion nebula (M42), and recent determinations of the Solar chemical composition.