English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Variability of Classical T Tauri Systems (CTTS) occurs over a vast range oftimescales. CTTS in particular are subject to variability caused by accretionshocks which can occur stochastically, periodically, or quasi-periodically ontimescales over a few days. The detectability of young planets within thesesystems is likely hampered by activity; therefore, it is essential that weunderstand the origin of young star variability over a range of timescales tohelp disentangle stellar activity from signatures of planetary origin. Wepresent analysis of the stochastic small-amplitude photometric variability inthe K2 lightcurve of CI Tau occurring on timescales of $\lesssim$1 d. We findthe amplitude of this variability exhibits the same periodic signatures asdetected in the large-amplitude variability, indicating that the physicalmechanism modulating these brightness features is the same. The periodsdetected are also in agreement with the rotation period of the star ($\sim$6.6d), and orbital period of the planet ($\sim$9.0 d) known to drive pulsedaccretion onto the star.

Amplitude Modulation of Short-Timescale Hot Spot Variability