Identification and classification of TESS variable stars

TL;DR

This paper presents a comprehensive visual classification of over 120,000 stars observed by Kepler, K2, and TESS, using spectral types, effective temperatures, luminosities, and light curve analysis to categorize variability types.

Contribution

It provides a new, detailed catalog of variable star classifications based on extensive observational data and analysis methods, including spectral and photometric parameters.

Findings

Classification of multiple variability classes with examples.

Compilation of a catalog of stellar effective temperatures and luminosities.

Analysis of light curves and periodograms for common variability types.

Abstract

Visual classification of the variability classes of over 120,000 Kepler, K2 and TESS stars is presented. The sample is mainly based on stars with known spectral types. Since variability classification often requires the location of the star in the H--R diagram, a catalogue of effective temperatures was compiled. Luminosities were estimated from Gaia DR3 parallaxes. The different classes of variable found in this survey are discussed. Examples of light curves and periodograms for common variability classes are shown. A catalogue of projected rotational velocities is also included.