New exocomets of $\beta$ Pic
Ya. Pavlenko (MAO NASU, UH), I. Kulyk (MAO NASU), O. Shubina (MAO, NASU, AO TSNU), M. Vasylenko (MAO NASU), D. Dobrycheva (MAO NASU), P. Korsun, (MAO NASU)

TL;DR
This study analyzes TESS light curves of Beta Pictoris to identify and characterize shallow, aperiodic exocomet transits, revealing new events and confirming the non-periodic nature of these dips.
Contribution
It introduces the detection of five new aperiodic exocomet-like transits in Beta Pictoris and confirms the non-periodic, shallow nature of these events using TESS data.
Findings
Recovered previously known exocomet events.
Discovered five new aperiodic dips with asymmetric profiles.
Dips are shallow, less than 0.03% flux drop, lasting under a day.
Abstract
Aims. The aim of our work is to analyze the light curves of Pic recently observed by TESS in sectors 32, 33, and 34, searching for the signatures of exocomet transits. Methods. We process the Pic light curves from the MAST database, applying the frequency analysis to remove harmonic signals due to the star's pulsations and use a simple 1-D model to fit the profiles of the found events. Results. We recover events previously found by other authors in sectors 5 and 6 and find five new distinct aperiodic dipping events with asymmetric shapes resembling the expected profiles due to the passage of a comet-like body across the star disk. These dips are rather shallow, with the flux drop at a level of 0.03\% and a duration of less than 1 day. No periodic transits were found in the sectors investigated. Conclusions. The depth and duration of the identified dips are similar to the…
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