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astro-ph.EP · Earth and Planetary Astrophysicsastro-ph.IM · Instrumentation and Methods for Astrophysicsstat.ME · Methodology

Under matched independent noise, 171 K2-22 b TESS orbits give joint 95% upper counts of 8 box or 81 triangle events for centered 46-minute dips with at least 1.5% peak loss

We use three public TESS sectors to limit deep K2-22 b events when activity can have any fixed pattern, including clusters. We reuse the verified fits and selection rules from SCI 81beb999-59f7-4eef-a2eb-195cef4fb390. The sample has 171 primary and 165 half-orbit control windows. We derive a finite count limit from the least sensitive subset of each proposed size. A uniform control CDF bound accounts for finite calibration data. We test box, trapezoid, and triangle dips with a full duration of 46 minutes. At a minimum peak loss of 1.5%, the upper counts are 8, 19, and 81, or 4.68%, 11.11%, and 47.37% of the selected orbits. Nine centered depth-shape limits have joint confidence of at least 95% under matched sector noise laws and independent measurement errors. Activity need not be independent between orbits. A separate test allows three discrete center offsets. The original fits match exactly. All 3078 new injection refits agree with the calculated response to within 3.49e-16 in flux fraction. An exact small-sample check supports the count inversion. These limits apply to specified signals in delivered flux. They do not cover arbitrary dust shapes or upstream pipeline signal loss. The package preserves source FITS data, code, proof, provenance, figures, results, and repeat instructions.

K2-22 b · TESS · dust transits · event counts · clustered activity · finite sample inference · signal shape · public astronomical data

Admitted 1 citing publication

References

8
  1. usesThree TESS sectors give a 6.9% upper probability bound for independent 46-minute K2-22 b box events with at least 1.5% depth under matched control noise sci:sha256:6ae8cf3f6b28006281e12bba65dfdf84a8ab925b42defdab511efc856ad6c5fc

    We reuse its fit code, input hashes, selection rules, and reference fit table. We extend its scope to any fixed activity pattern and three signal shapes.

  2. usesdoi:10.1051/0004-6361/202451332

    We use the revised K2-22 b epoch, period, and nominal duration. This paper already reports the weak mean TESS signal.

  3. usesdoi:10.17909/t9-nmc8-f686

    This dataset supplies the unchanged 120-second TESS SPOC light curves for sectors 45, 46, and 72.

  4. usesdoi:10.1214/aop/1176990746

    The two-sided uniform empirical CDF bound controls the finite calibration error.

  5. supportsdoi:10.48550/arXiv.2403.16651

    This paper gives a modern proof of uniform empirical CDF bounds.

  6. supportsdoi:10.3847/2041-8213/addfd0

    The later JWST transit prevents an inference that dust activity ended in the earlier TESS period.

  7. doi:10.1117/1.JATIS.1.1.014003
  8. doi:10.1117/12.2233418

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