The PSU/TCfA Search for Planets around Evolved Stars. Stellar parameters and activity indicators of targets
Andrzej Niedzielski, Grzegorz Nowak, Pawel Zielinski
TL;DR
This paper details the methods used in the PSU/TCfA survey to determine physical parameters and activity indicators of evolved stars, aiming to detect planetary systems and study their evolution.
Contribution
It introduces a comprehensive approach for measuring stellar parameters and activity indicators in evolved stars for planet detection.
Findings
Determined stellar parameters for GK-giants.
Analyzed activity indicators like line bisector and Halpha variability.
Established baseline data for future planet searches.
Abstract
The main objective of the Penn State/Torun Centre for Astronomy Search for Planets around Evolved Stars is the detection of planetary systems around massive, evolved stars. We are also interested in the evolution of these systems on stellar evolution timescales. In this paper we present our approach to determine the basic physical parameters of our targets GK-giants. We also discuss the stellar activity indicators used in our survey: line bisector and curvature, and Halpha variability.
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