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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/206389
TFAW survey II: six newly validated planets and 13 planet candidates from K2
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Searching for Earth-sized planets in data from Kepler's extended mission (K2) is a niche that still remains to be fully exploited. The TFAW survey is an ongoing project that aims to re-analyse all light curves in K2 C1-C8 and C12-C18 campaigns with a wavelet-based detrending and denoising method, and the period search algorithm TLS to search for new transit candidates not detected in previous works. We have analysed a first subset of 24 candidate planetary systems around relatively faint host stars (10.9 < Kp < 15.4) to allow for follow-up speckle imaging observations. Using vespa and TRICERATOPS, we statistically validate six candidates orbiting four unique host stars by obtaining false-positive probabilities smaller than 1 per cent with both methods. We also present 13 vetted planet candidates that might benefit from other, more precise follow-up observations. All of these planets are sub-Neptune-sized with two validated planets and three candidates with sub-Earth sizes, and have orbital periods between 0.81 and 23.98 d. Some interesting systems include two ultra-short-period planets, three multiplanetary systems, three sub-Neptunes that appear to be within the small planet Radius Gap, and two validated and one candidate sub-Earths (EPIC 210706310.01, K2-411 b, and K2-413 b) orbiting metal-poor stars.
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SER BADIA, Daniel del, FORS ALDRICH, Octavi, ALCÁZAR I JULIÀ, Marc del, DYACHENKO, Vladimir, HORCH, Elliott p., TOKOVININ, Andrei, ZIEGLER, Carl, VAN BELLE, Gerard t., CLARK, Catherine a., HARTMAN, Zachary d.. TFAW survey II: six newly validated planets and 13 planet candidates from K2. _Monthly Notices of the Royal Astronomical Society_. 2022. Vol. 518, núm. 1, pàgs. 669-690. [consulta: 22 de gener de 2026]. ISSN: 0035-8711. [Disponible a: https://hdl.handle.net/2445/206389]