TL;DR
This paper reviews current stellar spectral libraries, assessing their quality and limitations, and discusses future improvements needed for better stellar population modeling.
Contribution
It provides an overview of existing spectral libraries, evaluates their uncertainties, and highlights areas for future development in stellar population analysis.
Findings
Current spectral libraries vary in quality and coverage.
Uncertainties in libraries impact stellar population modeling accuracy.
Further improvements are needed for comprehensive stellar spectral resources.
Abstract
Libraries of stellar spectra are fundamental tools in the study of stellar populations and in automatic determination of atmospheric parameters for large samples of observed stars. In the context of the present volume, here I give an overview of the current status of stellar spectral libraries from the perspective of stellar population modeling: what we have currently available, how good they are, and where we need further improvement.
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