The star RR Lyr and the Cepheid variables in the era of the space photometry revolution

TL;DR

This paper investigates the long-term pulsation behaviors of RR Lyrae stars and discusses challenges in detecting additional modes in Cepheids using space-based photometry, highlighting advances in understanding variable star phenomena.

Contribution

It provides new insights into the long-term pulsation and Blazhko periods of RR Lyr and addresses detection difficulties in Cepheids with CoRoT data.

Findings

Long-term pulsation behaviors of RR Lyr characterized.

Detection challenges of additional modes in Cepheids discussed.

Implications for variable star studies in the era of space photometry.

Abstract

The long-term behaviours of the pulsation and Blazhko periods of RR Lyr are investigated by means of Kepler and ground-based observations. The difficulties in detecting additional modes in the Cepheids monitored with CoRoT are discussed.