The diversity of light curve variations of Blazhko stars

TL;DR

This paper investigates the diverse light curve variations of Blazhko stars, based on extensive multicolour observations, to understand modulation incidence, long-term changes, and physical parameter variations in RRab stars.

Contribution

It presents detailed analysis of light curve diversity in Blazhko stars using a large, accurate dataset, advancing understanding of their modulation properties.

Findings

Demonstrates diverse light curve variations among Blazhko stars

Provides insights into long-term changes in modulation properties

Analyzes correlations between light curve variations and physical parameters

Abstract

The ground-based Konkoly Blazhko Survey I and II aim to collect accurate, extended, multicolour light curves of galactic field RRab stars in order to determine the incidence rate of the modulation in the sample, to study the modulation in details, to study long-term changes in the modulation properties and to find changes in the mean global physical parameters of the stars with Blazhko phase. Here the diversity of light curve variations of Blazhko stars is demonstrated through a sub-sample of the modulated RRab stars found by the first part of this survey.