Circular transit fits to 11 TESS light curves give shorter durations than four published values
We test long transit durations for five confirmed hot Jupiters with 11 public TESS light curves. The data give 49 retained transit windows. Fits with free quadratic limb darkening give 3.11 hours for WASP-132 b and 3.75 hours for TOI-1295 b. They give 4.61 hours for TOI-2580 b and 3.84 hours for TOI-6016 b. The two source papers give 11.04, 6.17, 8.38 and 5.70 hours. These values also occur in the NASA Exoplanet Archive, with rounding. Resampling whole events retains the large differences. Tests with raw aperture flux, fixed limb darkening and wider windows give similar results. Separate observing seasons give similar short durations. An inserted longer transit is recovered on the observed residuals. TOI-6130 b gives a smaller difference, 2.12 hours versus 2.42 hours, from one sector. The result is a reproducible audit of selected duration entries. The fits use fixed source periods and circular local geometry. The intervals are conditional on this model and the selected data. Earlier work already gave a short duration for WASP-132 b. This study adds a 2026 season and a common flux test of all five entries. It does not determine the cause of the printed values.
TESS · transit duration · hot Jupiters · catalog audit · WASP-132 · TOI-1295 · TOI-2580 · TOI-6016 · TOI-6130 · reproducible astronomy
References
11- challengesdoi:10.1051/0004-6361/202348177
The selected TESS data give a much shorter T14 than the value of 11.04 hours in Table 3.
- challengesdoi:10.1051/0004-6361/202451404
The selected TESS fits are shorter than the three large duration values in Table 9. The smaller TOI-6130 b difference is reported separately.
- usesdoi:10.5281/zenodo.13840492
Source parameter tables give TESS limb darkening and initial transit shapes.
- usesdoi:10.17909/t9-nmc8-f686
Eleven public 120-second TESS SPOC light curves. The package lists exact products and sectors.
- usesdoi:10.26133/NEA12
Frozen default PS rows and their duration references.
- usesdoi:10.26133/NEA13
Frozen composite rows used for exploratory target selection.
- usesdoi:10.1086/683602
batman transit flux model.
- supportsdoi:10.1093/mnras/stw3005
The original WASP-132 b discovery paper already gives a short transit duration.
- Folded TESS PDC light curves retain broad dips in four of five selected duration anomalies sci:sha256:cf43edf807bbed7e03cbdd1dc4c4e9f5e141cd3daa392e051f2bfb6053d44628
Related direct TESS flux tests for five different open candidates. No data or code are reused.
- Central transits at apastron match all 31 flagged TOI durations without surface contact at the catalog central values sci:sha256:ea5311add32b2f94c31cf24ad7867e1c9275f1828559ba2a12ae65516f50d3a2
A circular duration flag alone does not rule out a physical eccentric orbit.
- All 23 factor of two density differences use mixed sources in 600 small planets on 21 October 2026 sci:sha256:b7790fdbeb990341f24f7119aafd337bfff654dfe113c52b5eccafb3a078f139
Related source audit shows why mixed catalog inputs need checks.
Cited by
3 publicationsPublic catalog entries on Sciscape.
- usesA 3.114-hour WASP-132 b mask narrows the c interval in 2022 HARPS pairs with fixed orbit shapes and independent Gaussian errors
We reuse the 3.114-hour b duration and the 3.093 to 3.148-hour conditional event range. We do not fit new transit data.
- Nine stellar fields for TOI-6130 in the 22 October 2026 archive match the source values for TOI-6016
This duration audit guided source selection. Our contribution tests stellar source associations. We do not reuse its light curve fits.
- usesThe 2025 WASP-132 b duration exceeds a bound for spherical bodies on exterior Kepler orbits and matches reported velocity exclusion counts
We reuse its 3.114-hour WASP-132 b duration and 3.093 to 3.148-hour conditional event bootstrap endpoints. We do not make a new flux fit. The orbit bound supports its reported duration conflict.