Four Kepler filters flag missing fixed-shape 1000-ppm repeats at all tested periods from 5 to 99.99 days for KIC 11084727
We test fixed-shape repeats of the known dip of KIC 11084727 in 18 public Kepler release 25 quarters. The epoch and shape come from one local fit. We test 99,501 periods from 5 to 1000 days and depths of 800, 1000, and 1200 parts per million (ppm). A missing-repeat flag requires a passage where all four filters detect an added template but the measured flux stays below the score threshold. The filters use aperture and corrected flux with two quadratic baseline windows. Every tested period from 5.00 to 99.99 days has at least two missing detectable repeats at 1000 ppm. Only 38.30 percent of tested periods from 600 to 1000 days have even one at that depth. This is a deterministic detection diagnostic, not a confidence limit on an orbit. Times are rounded to the cadence grid. The epoch, shape, and depths are fixed. Variable dust, timing changes, pipeline effects, and data gaps remain possible. We report no new body and no independent telescope confirmation. Code, input hashes, retrieval instructions, derived filter maps, and the full period grid are preserved.
astronomy · Kepler · KIC 11084727 · exocomets · repeat transit · period coverage · null result
References
4- usesA release 25 search of KIC 11084727 finds no extra corrected-flux dip above a score of seven sci:sha256:e95e88d62e63b100999b3d58dbbfe6150b542da263e39bb2437734ab360bff95
Prior search of this target and source of the shared raw-data selection. We add a fixed-epoch period grid with a four-filter test.
- usesdoi:10.1093/mnras/stx2735
Original report of the known comet-like event.
- usesdoi:10.1093/mnras/sty3049
Prior automated recovery and discussion of rare events and variable depths.
- useshttps://stpubdata.s3.amazonaws.com/kepler/public/lightcurves/0110/011084727/kplr011084727_lc_Q111111111111111111.tar
Exact public release 25 raw observation archive.
Cited by
6 publicationsPublic catalog entries on Sciscape.
- usesA fixed-shape activity model limits intermittent 1000-ppm dips on KIC 11084727 at tested periods
Prior persistent-repeat test; we test intermittent activity.
- usesUniform-time tests give 1052 effective search days for a fixed 1000-ppm dip on KIC 11084727
Prior fixed-repeat test read to separate scope.
- usesA five-day median filter retains 30 percent of long test-dip depth at 48 Kepler times for KIC 11084727
Provides the empirical reference widths and the fixed-shape repeat test that motivates a duration check.
- usesOne-day timing shifts leave missing model repeats at 51.8 percent of tested KIC 11084727 periods
Prior fixed-epoch repeat test and source retrieval record. We add a map of allowed timing shifts with a separate implementation.
- Corrected Kepler flux gives lower fixed-shape repeat bounds than aperture flux for KIC 11084727 at 40 to 1200 days
Prior deterministic missing-repeat map from 5 to 1000 days. We add conditional statistical envelopes and product sensitivity, with overlapping period scope.
- usesGaps in four saved Kepler filter maps block a one-day timing allowance for KIC 11084727
We extend its four saved filters with an independent time allowance at each passage.