Twelve TESS sectors cover 100 percent of orbital phase for circular HD 216520 b models with 2 Earth radii at 201 tested periods near 35.45 days and three impact parameters
We measured repeated-transit phase coverage for HD 216520 b in twelve public TESS light curves with 120-second samples. Circular models with 2 Earth radii have at least four eligible events across 100 percent of phase at 201 tested periods from 35.417 to 35.483 days and impact parameters of 0, 0.5 and 0.8. The first three sectors cover only 74.33 to 75.13 percent of phase with at least two eligible events. Eligibility requires at least 80 percent of nominal in-transit samples and 60 samples on each baseline side. No original model passes the preset repeated-event rule in either corrected or aperture flux. The rule requires a total score of 8 and a score of 5 after the event with the largest individual dip score is removed. A primary test adds 23040 physical signals in corrected flux. At the four tested radii from 1.25 to 3 Earth radii, 18432 of 18432 trials pass. At one Earth radius, 4232 of 4608 trials pass. An aperture-flux control recovers all 1536 inserted 2-Earth-radius signals. An offset period and phase check recovers all 3072 signals with 1.5 or 2 Earth radii. These are conditional tests in saved flux after mission processing. They use fixed stellar values and limb darkening. They do not give planet probabilities or radius confidence limits. No new planet or transit is confirmed. The package preserves exact source files, provenance, continuous phase intervals, trial records, figures, code and reproduction instructions.
HD 216520 b · TIC 264899051 · TESS · repeated transit · orbital phase coverage · injection recovery · public astronomical data
References
6- usesdoi:10.3847/1538-3881/abc2d0
This discovery study supplies the period and stellar values. It also reports the earlier three-sector transit null result and recovery test. This study extends the source set and tests repeated events with a different rule.
- usesdoi:10.17909/t9-nmc8-f686
This collection supplies the twelve TESS SPOC light curves. The package preserves exact source bytes, public URLs, retrieval dates and hashes.
- usesTwelve TESS sectors cover 81.2 to 82.1 percent of phases for circular HD 216520 c models at 154.43 days, 2 Earth radii and impact parameters 0, 0.5 and 0.8 sci:sha256:aa66ff383891577b022784f22081d9e809f0d2c40dd33b5fd7ea12ef89ce8c7b
This study supplies the verified source products, MAST provenance and MIT local-fit code. It tests planet c. The present work tests repeated events for planet b and adds continuous repeated-event coverage and new inserted-signal trials.
- usesThree TESS sectors cover 35.0 to 37.4 percent of transit phases for circular HD 48948 d models with 2 Earth radii and impact parameters 0 and 0.8 at four tested periods sci:sha256:9870efe9146d064ecdc8ae7713a03c32fe9bc0dbf9263ab9da1c6259046f36d5
The adapted MIT code inherits local fitting, occultation and interval methods from this source. Its notices remain. This study does not use its other target data.
- usesNo transit template reaches a score of 8 near HD 48948 b's period in TESS sectors 20, 60, and 73 sci:sha256:7d32ac50b3d7e35d7c80710824f2a3fe901763d34276ef395ac7b376c6e3d785
The reused code inherits weighted projection and stellar annulus methods from this upstream MIT source. Its notices remain. This study does not use its other target data.
- usesdoi:10.1086/683602
The batman transit model gives an independent numerical comparison for the adopted quadratic limb darkening and exposure integration.
Cited by
1 publicationPublic catalog entries on Sciscape.
- supportsTESS sectors 1-107 show no new transit of 659 RV planets in their RV-predicted windows; the same search finds 24 of 28 known transiting RV planets; the HD 44219 eclipses come from a neighbour star
Our uniform TESS search finds no transit of HD 216520 b in its RV-predicted windows (S = 6.19, below the threshold; P_det = 0.91).