TESS and MAO R and I band photometry of the giant planet candidate TOI-7202.01

Nurmamatov, Sheroz, Burxonov, Otabek, Salohiddin, Ergashev

FarDU ilmiy xabarlari · 2026-yil

Annotatsiya

We investigate the giant-planet candidate TOI-7202.01 (TIC 116262653) using numerical TESS Quick-Look Pipeline light curves, the associated four-page data-validation report, and Maidanak Astronomical Observatory (MAO) photometry reduced with AstroImageJ. Six TESS sectors provide 16 transit windows with adequate local baseline coverage. An exposure-integrated trapezoid fit yields an orbital period of 7.760089 ± 0.000016 d, a depth of 14.63 ± 0.94 parts per thousand (ppt), and a total duration of 1.897 ± 0.124 h. We analyse 231 ground-based measurements: 164 in R from 2025 June 13 and 67 in I from 2026 June 5. A timestamp audit identifies incorrect barycentric information in the 2026 I-band export; all ground-based times are therefore recalculated consistently in BJDTDB. With the TESS duration and ingress fraction used as a template, and their uncertainty propagated by block resampling, the R- and I-band depths are 14.36 ± 1.64 and 18.90 ± 4.66 ppt, respectively. Their timing offsets from the TESS-only ephemeris are −7.19 ± 4.06 and +3.53 ± 8.01 min. A reported 1.296-ppt, 3.0σ secondary feature is not recovered by our local-baseline analysis: the largest local significance over the report-directed phase and duration grid is 1.83σ. The results support a repeatable transit-like event within the target photometric aperture, while incomplete ground-based baseline coverage and unresolved blend scenarios prevent planetary validation. TOI-7202.01 remains a candidate suitable for further photometric and spectroscopic vetting.

Maqola ma’lumotlari
MualliflarNurmamatov, Sheroz, Burxonov, Otabek, Salohiddin, Ergashev
JurnalFarDU ilmiy xabarlari
NashriyotFarg‘ona davlat universiteti
ISSN2010-8419, 2181-1571
Nashr sanasi2026-10-22
Jild7
Son6
Betlar1-15
TilIngliz
Indeksga qo‘shilgan2026-10-23

Maqolaning asl sahifasi

Kalit so‘zlar

planetary systems – techniques, photometric – methods, data analysis – stars, TIC 116262653, planetary systems – techniques, photometric – methods, data analysis – stars, TIC 116262653

Iqtibos keltirish

APANurmamatov, Sheroz, Burxonov, Otabek, & Salohiddin, Ergashev (2026). TESS and MAO R and I band photometry of the giant planet candidate TOI-7202.01. FarDU ilmiy xabarlari, 7(6), 1-15. https://journal.fdu.uz/main/article/7913
GOST (OAK)Nurmamatov, Sheroz, Burxonov, Otabek, Salohiddin, Ergashev TESS and MAO R and I band photometry of the giant planet candidate TOI-7202.01 // FarDU ilmiy xabarlari. – 2026. – T. 7, № 6. – P. 1-15.
MLANurmamatov, Sheroz, Burxonov, Otabek, and Salohiddin, Ergashev. “TESS and MAO R and I band photometry of the giant planet candidate TOI-7202.01.” FarDU ilmiy xabarlari, 7(6), 1-15, 2026. https://journal.fdu.uz/main/article/7913
ChicagoNurmamatov, Sheroz, Burxonov, Otabek, and Salohiddin, Ergashev. “TESS and MAO R and I band photometry of the giant planet candidate TOI-7202.01.” FarDU ilmiy xabarlari, 7(6), 1-15 (2026). https://journal.fdu.uz/main/article/7913
HarvardNurmamatov, Sheroz, Burxonov, Otabek, and Salohiddin, Ergashev (2026) ‘TESS and MAO R and I band photometry of the giant planet candidate TOI-7202.01’, FarDU ilmiy xabarlari, 7(6), 1-15. https://journal.fdu.uz/main/article/7913
BibTeX
@article{nurmamatovsheroz2026,
  title = {TESS and MAO R and I band photometry of the giant planet candidate TOI-7202.01},
  author = {Nurmamatov, Sheroz and Burxonov, Otabek and Salohiddin, Ergashev},
  journal = {FarDU ilmiy xabarlari},
  year = {2026},
  volume = {7},
  number = {6},
  pages = {1-15},
  url = {https://journal.fdu.uz/main/article/7913}
}

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