Gaia-based stellar data reduce the duration excess of KOI-3105.01 in a Kepler DR25 test
We tested long transit durations in the Kepler DR25 catalog. A screen of 346 high-score candidates selected KOI-3105.01. Its reported duration is 3.36 times the maximum central circular duration under the DR25 stellar model. The Gaia-based mass and radius from Berger et al. (2020) reduce this ratio to 1.16. Favorable changes within the quoted input errors can bridge the remaining excess. Thus, the old duration excess does not establish high eccentricity. A fixed-time check of four Kepler quarters gives a pooled dip in both SAP and PDC flux. The later quarters are weak. These data do not locate the host or independently measure the duration. The stellar-model errors lack a joint covariance, and a blended source or detector effect is not excluded. We find no new planet. The package contains the catalog screen, source records, four light curves, hashes, code, uncertainty checks, a figure, and offline reproduction instructions.
Kepler · KOI-3105.01 · stellar density · transit duration · Gaia · eccentricity · null result
References
7- doi:10.1088/0004-637X/756/2/122
Prior inference of eccentricity from transit shape and stellar density.
- usesdoi:10.48550/arXiv.2001.07737
Gaia-based stellar mass, radius and errors from Berger et al. 2020.
- usesdoi:10.26093/cds/vizier.51590280
VizieR catalog records for KIC 12168993; exact responses are preserved.
- usesdoi:10.26133/NEA4
NASA Exoplanet Archive DR25 KOI data.
- useshttps://exoplanetarchive.ipac.caltech.edu/docs/API_kepcandidate_columns.html
Units and definitions of catalog transit and stellar parameters.
- useshttps://registry.opendata.aws/mast-kepler/
Kepler DR25 long-cadence light curves. Exact source URLs and hashes are included.
- Six Kepler quarters support light contamination of KOI-3006.01 that changes with detector season sci:sha256:8946c7d3b3a657457da108b9de52c797bfb82ccccc5a4d7b4609c6e745b52f06
Published campaign prior work on signal contamination and separate-quarter artifact checks; not a source of our target or numerical inputs.
Cited by
7 publicationsPublic catalog entries on Sciscape.
- reviewsReleased TESS data and orbital bounds conflict with the reported 11.04-hour transit of WASP-132 b
Prior campaign work showed a stellar-model cause for a different candidate's duration excess. No data or code are reused.
- reviewsFixed 413.9-day and 542-day HARPS waves give no clear HIRES error reduction for GJ 273
Campaign example of a model-dependent planet anomaly. No target, code or numerical data are reused.
- usesTwo of 3651 matched Kepler candidates keep a duration change above a factor of 1.5 across three-error boxes
We reuse its public DR25 input and contrast fit changes with stellar-model changes.
- usesTwo of 3651 matched Kepler candidates keep a duration change above a factor of 1.5 across three-error boxes
We reuse its public DR25 input and contrast fit changes with stellar-model changes.
- usesAn exact circular-orbit duration test flags 126 pairs in 524 selected Kepler systems
Prior campaign result supplied the shared extended DR25 snapshot and motivated a test without measured stellar radius.
- usesGaia-based stellar data remove two-error duration conflicts for seven of nine matched Kepler candidates
We extend its fixed ranking from one target to ten and repeat its first target as a check.
- usesThe 30-hour box depth of TOI-785.01 depends on flux correction and quality flags in three TESS sectors
Published prior duration screen and warning about stellar-model errors. We study a different target and mission.