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Hunting for exoplanets in stellar associations using TESS

Authors: Manthopoulou, Eleni Evangelia; Nardiello, Domenico; Montalto, Marco; Piotto, Giampaolo;

Hunting for exoplanets in stellar associations using TESS

Abstract

For the predominant part of exoplanets’ hosts, the age is not well constrained and consequently planet properties, formation, and occurrence rates have been widely unmapped as a function of time. The discovery of exoplanets in young associations and moving groups can shed light on these topics as they offer the opportunity to investigate planet formation and evolution at different stages of a planet's life in environments with well-defined age. In this poster, we present the analysis of∼11 000 light curves of stars belonging in 41 young associations and moving groups, with ages spanning from 1 Myr to 680 Myr. We have extracted the light curves of young association’s members from the TESS Full FrameImages, corrected the systematic errors that affected them, excluded stellar variability, and performed transit simulations to probe the detection efficiency of our technique to discover transiting exoplanet candidates. We report the detection of 10 candidate exoplanets belonging to stellar associations with ages between 10 and 35 Myr. The transiting candidates in our sample have been validated through a series of vetting tests (odd/even, secondary transit depth etc). Five of our candidates are ncluded in the all-sky PLATO input catalogue and have chances to be observed to better characterize their planet properties, depending on the final choice of the mission fields.

Country
France
Keywords

[SDU] Sciences of the Universe [physics], exoplanets, technique: photometric, stellar associations, Zenodo community plato2021, variable stars

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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