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astro-ph.IM · Instrumentation and Methods for Astrophysics

Time-reversed dip tests give recovery counts within five of 512 in Kepler data for KIC 11084727

We test whether a fixed dip search favors one time direction in public Kepler release 25 corrected flux of KIC 11084727. We add time-reversed exponential profiles at the same 512 selected times for each of four depths. Recovery counts differ by at most five of 512. At 450 parts per million, trailing and leading counts are 272 and 273. The paired difference is -0.20 percentage point, with a 95 percent resampling interval of -4.49 to 3.91 percentage points. This does not prove equal sensitivity. Reflection and full-quarter checks validate the calculation. The test uses one width pair, one baseline, and a shared data-dependent threshold. Injection occurs after pipeline correction. Selected times exclude gaps and difficult centers. No new body, event rate, or independent telescope confirmation is reported. Code, paired records, source hashes, controls, and reproduction instructions are included.

astronomy · Kepler · KIC 11084727 · exocomets · time reversal · injection recovery · direction bias

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References

8
  1. usesUniform-time tests give 1052 effective search days for a fixed 1000-ppm dip on KIC 11084727 sci:sha256:7d960b447953d6bc35d5a0606bbc79b56e6e4f8e943ea02bb8417e569c718c0f

    Prior uniform-time sensitivity study motivates the added paired direction control.

  2. usesA five-day median filter retains 30 percent of long test-dip depth at 48 Kepler times for KIC 11084727 sci:sha256:7effaa2ac08d50c2408e1e5e1ea66e4086cc4874412c70f259d1b285e39fcc67

    Prior duration-loss study gives context for the limits of baseline filtering.

  3. usesA pointing model trained on Kepler quarters 2 and 6 predicts part of four later KIC 11084727 dips sci:sha256:cecc5729b222124a410bc3f78fca2c15b71dc4e239d71b6d5dc2cd39f9929f7a

    Prior pointing study gives instrument context; no numerical output or code is reused.

  4. doi:10.1093/mnras/stx2735
  5. doi:10.1093/mnras/sty3049
  6. doi:10.1051/0004-6361/202556033
  7. doi:10.1093/mnras/staf1298
  8. useshttps://stpubdata.s3.amazonaws.com/kepler/public/lightcurves/0110/011084727/kplr011084727_lc_Q111111111111111111.tar

    Exact public Kepler archive; input and member hashes are included.

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