YOUNG Star detrending for Transiting Exoplanet Recovery (YOUNGSTER) -- I. A search for young exoplanets in Sectors 1-5 of the TESS Full-Frame-Images
Matthew P. Battley, Don Pollacco, David J. Armstrong

TL;DR
This paper introduces a LOWESS-based pipeline tailored for detrending young stellar light-curves from TESS FFIs, enabling improved detection of young exoplanets despite stellar activity challenges.
Contribution
It presents a novel detrending pipeline specifically designed for young stars in TESS data, with automatic variability removal and transit masking, enhancing young exoplanet detection capabilities.
Findings
Recovered all known 2min TOIs around young stars from 30min data
Successfully recovered the young exoplanet DS Tuc Ab
Identified various young eclipsing binaries and rotation periods
Abstract
Young (<1Gyr) exoplanets represent a critically important area of exoplanet research, as they offer the opportunity to learn about the formation and early dynamic history of exoplanetary systems. However, finding young exoplanets is significantly complicated by the fast rotation and complex activity of their young host stars, which are often not well handled by state-of-the-art automatic pipelines. This work presents an alternative LOWESS-based pipeline focused specifically on detrending young stellar light-curves from the 30min-cadence Full Frame Images (FFIs) produced by the Transiting Exoplanet Survey Satellite (), and includes improvements such as automatic peak-cutting of stellar variability and interpolation over masked transits to improve periodogram visibility and returned transit shapes. This work presents the details of the developed pipeline, along with initial results…
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