Advances in Spectral Classification

TL;DR

This paper reviews recent advances in spectral classification, highlighting developments in stellar and galactic evolution, new classification systems, automated methods, and large-scale catalogues for efficient data analysis.

Contribution

It provides a comprehensive overview of recent progress, including new classification systems, automated techniques, and large catalogues, enhancing spectral analysis capabilities.

Findings

Extension of MK system to cool stars

Development of automated classification methods

Compilation of recent large-scale spectral catalogues

Abstract

In this article we give an overview of the developments in the field of spectral classification and its continued importance in the fields of stellar and galactic evolution. The extension of MK system to cool stars as well as refined classification of the hot stars using the new data obtained from modern ground based facilities and space missions has been described. A brief summary of automated methods of spectral classifications developed for the quick and objective classification of the ongoing and future surveys is presented. A new spectral class encoding system developed for exploitation of databases is described. Recent large scale spectral classification catalogues are listed.