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arXiv · 2012.08972

Systematics-insensitive Periodogram for finding periods in TESS observations of long-period rotators

Christina Hedges·Ruth Angus·Geert Barentsen·Nicholas Saunders·Benjamin T. Montet·Michael Gully-Santiago
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Abstract

NASA's TESS mission \citep{tess} has produced high precision photometry of millions of stars to the community. The majority of TESS observations have a duration of $\approx$27 days, corresponding to a single observation during a TESS sector. A small subset of TESS targets are observed for multiple sectors, with approximately 1-2\% of targets falling in the Continuous Viewing Zone (CVZ) during the prime mission \citep{yield}, where targets are observed continuously for a year. These targets are highly valuable for extracting long period rotation rates, which can be linked to stellar ages. We present a pip installable Python tool for extracting long period rotation rates in the TESS CVZ, while simultaneously mitigating instrument systematics.

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Christina Hedges, Ruth Angus, Geert Barentsen, Nicholas Saunders, Benjamin T. Montet, Michael Gully-Santiago. 2020-12-14. Systematics-insensitive Periodogram for finding periods in TESS observations of long-period rotators. https://doi.org/10.3847/2515-5172%2Fabd106

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