English

Statistical Validation and Photometric Characterization of the Hot Jupiter Candidate TOI 7475.01

Earth and Planetary Astrophysics 2026-03-10 v2

Abstract

We present the statistical validation and full photometric characterization of the exoplanet candidate TOI 7475.01 (TIC 376866659), detected by the TESS mission. Using a custom pipeline combining natural flux preservation with robust BLS detection, we identified a transit signal with a period of 3.25383.2538 days and a depth of 4600\sim 4600 ppm. To rule out false positives, we performed centroid analysis, spatial contamination checks using Gaia DR3, and a statistical validation using TRICERATOPS. Our results show a Signal-to-Noise Ratio (SNR) of 294.13 and a False Positive Probability (FPP) of 0\approx 0. Based on the clean spatial environment, stable centroids, and high statistical probability, we validate TOI 7475.01 as a planetary companion. We subsequently performed a Bayesian transit fit using juliet with Dynesty nested sampling, and derived physical parameters via Monte Carlo error propagation. We find a planetary radius of Rp=1.180.40+0.39 RJupR_p = 1.18^{+0.39}_{-0.40}\ R_\mathrm{Jup} and an equilibrium temperature of Teq=145556+77T_\mathrm{eq} = 1455^{+77}_{-56} K, consistent with a hot Jupiter classification. The planet mass is estimated at Mp2.2 MJupM_p \approx 2.2\ M_\mathrm{Jup} (MAP) via the Chen&Kipping mass-radius relation; radial velocity follow-up is required for a precise measurement. The impact parameter remains unconstrained (b=0.46±0.34b = 0.46 \pm 0.34), a limitation of single-band TESS photometry that future CHEOPS observations could resolve.

Keywords

Cite

@article{arxiv.2602.14840,
  title  = {Statistical Validation and Photometric Characterization of the Hot Jupiter Candidate TOI 7475.01},
  author = {Biel Escolà-Rodrigo},
  journal= {arXiv preprint arXiv:2602.14840},
  year   = {2026}
}

Comments

7 pages, 8 figures, 4 tables. Data and code available at DOI: https://doi.org/10.5281/zenodo.18641713