AGN Identification in MaNGA Coronal Line Galaxies
Abstract
Coronal emission lines, which are highly ionized species of gas with ionization potentials >100 eV, are promising tracers of AGN. However, they are poorly studied and much of their origin remains a mystery. In a study of coronal lines in MaNGA galaxies, we found that [Ne V] coronal line detections correspond to WISE AGN detections, while [Fe VII] coronal line detections do not, perhaps because [Fe VII] traces lower luminosity AGN missed by WISE. Here we propose Chandra observations of five [Fe VII] coronal line galaxies in MaNGA to determine whether the source of the coronal line emission is AGN, AGN outflows, or outflows and shocks associated with star formation or galaxy mergers.
- Publication:
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Chandra Proposal
- Pub Date:
- September 2022
- Bibcode:
- 2022cxo..prop.6361N
- Keywords:
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- Chandra Proposal ID #24700235