K2 Photometry of RR Lyrae Stars
E. Plachy, L. Moln\'ar, A. B\'odi, M. Skarka, \'A. L. Juh\'asz, \'A., S\'odor, P. Klagyivik, R. Szab\'o
TL;DR
This paper introduces a specialized photometric pipeline for RR Lyrae stars observed by Kepler, compares its performance with existing methods, and discusses instrumental effects and mode detection challenges.
Contribution
Development of the Extended Aperture Photometry pipeline tailored for RR Lyrae stars and comparison with other existing pipelines.
Findings
EAP pipeline provides improved light curves for RR Lyrae stars.
Instrumental effects significantly impact the detection of low-amplitude modes.
Comparison shows EAP's advantages over other pipelines in certain aspects.
Abstract
Thousands of RR Lyrae stars have been observed by the \textit{Kepler} space telescope so far. We developed a photometric pipeline tailored to the light variations of these stars, called the Extended Aperture Photometry (EAP). We present the comparison of our photometric solutions for Campaigns 0 through 6 with the other pipelines available, e.g., SAP/PDCSAP, K2P2, EVEREST, and others. We focus on the problems caused by instrumental effects and the detectability of the low-amplitude additional modes.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astro and Planetary Science · Astronomy and Astrophysical Research