Constraining Young Hot Jupiter Occurrence Rate in Stellar Associations Using 2-min Cadence TESS Data

The characterization of young planet distribution is essential for our understanding of the early evolution of exoplanets. Here we conduct a systematic search for young planets from young open clusters and associations using the 2-min cadence TESS survey data. We obtain TESS light curves for a total...

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Bibliographic Details
Published in:Universe (Basel) 2023-04, Vol.9 (4), p.192
Main Authors: Fang, Yuanqing, Ma, Bo, Chen, Chen, Wen, Yongxin
Format: Article
Language:English
Subjects:
Astronomical research
Candidates
Eclipsing binaries
exoplanet
Extrasolar planets
Jupiter
Migration
Monte Carlo simulation
Planet formation
Planetary systems
Planets
Stars
transiting planet
young star
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Summary:The characterization of young planet distribution is essential for our understanding of the early evolution of exoplanets. Here we conduct a systematic search for young planets from young open clusters and associations using the 2-min cadence TESS survey data. We obtain TESS light curves for a total of 1075 young stars, which are selected with the aid of Gaia data. There are a total of 16 possible transiting signals. After a thorough vetting process, some have been confirmed as planets, and others are likely caused by eclipsing binaries. The final sample contains six confirmed planets, of which one is a hot Jupiter. After accounting for survey completeness using a Monte Carlo simulation, we can put a 95% confidence level upper limit on the hot Jupiter (P < 10 days, Rp = 0.7–2.9 RJup) occurrence rate orbiting stars in young associations at
ISSN:2218-1997
2218-1997
DOI:10.3390/universe9040192