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astro-ph.EP · Earth and Planetary Astrophysics

Circular same-star models require tilt above one degree for 61 selected Kepler pairs in three-error boxes

We bound the mutual inclination needed to explain reversed transit duration order in 1,050 Kepler pairs on 524 stars. The model assumes circular orbits around one spherical star and negligible companion masses. A finite analytic search minimizes over all allowed common stellar densities and independent duration and radius-ratio boxes. In three-error boxes, 126 pairs have a positive bound and 61 have a bound above one degree. The largest bound is 5.934 degrees for KOI-2748.02/01. Release 24 gives 5.824 degrees for this pair. The release check shares Kepler observations and is not independent confirmation. Synthetic transits, density grids, parameter draws, and physical corner solutions check the method. Eccentricity, separate hosts, and biased transit fits remain possible. No new planet or measured inclination is reported. The package preserves code, frozen catalogs, source queries and hashes, all pair results, a figure, and offline reproduction instructions.

astronomy · Kepler · transit duration · mutual inclination · circular orbit · conditional bound

Admitted 1 citing publication

References

8
  1. usesAn exact circular-orbit duration test flags 126 pairs in 524 selected Kepler systems sci:sha256:da11e73593b6a97dc19593cdf5486efd874ee94ab0636b43220fb137a20c3e0c

    The prior order screen defines the sample and gives a feasible example. We compute global tilt bounds.

  2. reviewsA joint circular-plane test flags 18 Kepler systems that pass every pair fit in three-error input boxes sci:sha256:5e7a70899846679b5b2a5184628f1e173c18979ff026227fa77d5840ec556165

    Related whole-system common-plane test. We instead bound pair tilt.

  3. doi:10.1086/346105
  4. doi:10.1088/0004-637X/790/2/146
  5. usesdoi:10.26133/NEA4
  6. https://exoplanetarchive.ipac.caltech.edu/docs/API_kepcandidate_columns.html

    Contact-time definitions and linear-ephemeris fit limitation.

  7. useshttps://exoplanetarchive.ipac.caltech.edu/TAP/sync?query=select+kepid%2Ckepoi_name%2Ckoi_disposition%2Ckoi_pdisposition%2Ckoi_period%2Ckoi_duration%2Ckoi_duration_err1%2Ckoi_duration_err2%2Ckoi_ror%2Ckoi_ror_err1%2Ckoi_ror_err2%2Ckoi_slogg%2Ckoi_slogg_err1%2Ckoi_slogg_err2%2Ckoi_srad%2Ckoi_srad_err1%2Ckoi_srad_err2%2Ckoi_score%2Ckoi_model_snr%2Ckoi_time0bk%2Ckoi_depth+from+q1_q17_dr25_koi&format=csv
  8. useshttps://exoplanetarchive.ipac.caltech.edu/TAP/sync?query=select+kepid%2Ckepoi_name%2Ckoi_period%2Ckoi_duration%2Ckoi_duration_err1%2Ckoi_duration_err2%2Ckoi_ror%2Ckoi_ror_err1%2Ckoi_ror_err2+from+q1_q17_dr24_koi+where+kepoi_name+in+%28%27K02748.02%27%2C%27K02748.01%27%2C%27K00159.02%27%2C%27K00159.01%27%2C%27K00316.03%27%2C%27K00316.01%27%29&format=csv

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