Star-planet interactions and selection effects from planet detection methods

TL;DR

This paper discusses how star-planet interactions influence stellar activity and how detection biases affect the study of these interactions, emphasizing the importance of accounting for selection effects in observational samples.

Contribution

It highlights the impact of selection effects on detecting star-planet interactions and the need to consider these biases in observational studies.

Findings

Star-planet interactions can enhance stellar activity.

Detection sensitivity is affected by stellar activity levels.

Selection effects bias samples of planet-hosting stars.

Abstract

Planets may have effects on their host stars by tidal or magnetic interaction. Such star-planet interactions are thought to enhance the activity level of the host star. However, stellar activity also affects the sensitivity of planet detection methods. Samples of planet-hosting stars which are investigated for such star-planet interactions are therefore subject to strong selection effects which need to be taken into account.