Review of the Classification and Properties of 55 Variable Stars in Scutum

TL;DR

This paper reviews and updates the classification and properties of 55 variable stars in Scutum, confirming variability, discovering new period/type data for 17 stars, and identifying database inconsistencies.

Contribution

It provides a comprehensive re-evaluation of 55 variable stars, correcting classifications and highlighting discrepancies in existing astronomical databases.

Findings

Confirmed variability for all stars

Discovered new period/type data for 17 stars

Identified database inconsistencies for 3 stars

Abstract

This study aims to assess the properties and classification of 55 variable stars in Scutum, little studied since their discovery and reported in the Information Bulletin on Variable Stars (IBVS) 985 and update. Using data from previous studies and several astronomical databases, we performed our analysis mainly utilizing a period analysis software and comparing the photometric characteristics of the variables in a Colour-Absolute Magnitude Diagram. For all stars, the variability is confirmed. We discovered new significant results for the period and/or type of 17 variables and highlighted incorrect cross-reference names on astronomical databases for 3 stars. This assessment also identifies 12 cases for which the results from the ASAS-SN Catalog of Variable Stars are systematically not consistent with the original light curves.