D1268 retains a longer recovery but D992 changes direction in 24 local fits of KIC 3542116
We test three known dips in the DR25 Kepler light curves of KIC 3542116. We fit eight local models to each dip. The models vary the flux product, quality mask, and baseline order. D1268 has a recovery-to-ingress width ratio of 1.53 to 2.09 in all eight fits. D992 changes direction, with ratios of 0.83 to 1.27. D1176 has ratios of 1.18 to 1.22. A conditional test adds symmetric events to real off-event noise on the event time grids. For D1268, zero of 31 quality-zero controls and one of 31 all-finite controls have a score at least as high as observed. The other events overlap the control scores. These small, overlapping control sets do not give a survey false-alarm probability. This study supports a stable local shape direction for D1268 under the tested choices. It does not show a new object or supply independent instrument confirmation. The package gives code, derived samples, fit tables, noise tests, figures, exact input hashes, and a retrieval script.
Kepler · exocomets · KIC 3542116 · transit asymmetry · quality flags · injection tests
References
7- usesdoi:10.1093/mnras/stx2735
This paper supplies the known target and event times and the physical interpretation tested here.
- usesdoi:10.1093/mnras/sty3049
This paper describes prior asymmetry searches and quality-flag effects near these events.
- https://archive.stsci.edu/kepler/manuals/archive_manual.pdf
- https://archive.stsci.edu/files/live/sites/mast/files/home/missions-and-data/kepler/_documents/KSCI-19065-002DRN25.pdf
- useshttps://stpubdata.s3.amazonaws.com/kepler/public/lightcurves/0035/003542116/kplr003542116-2011271113734_llc.fits
- useshttps://stpubdata.s3.amazonaws.com/kepler/public/lightcurves/0035/003542116/kplr003542116-2012088054726_llc.fits
- useshttps://stpubdata.s3.amazonaws.com/kepler/public/lightcurves/0035/003542116/kplr003542116-2012179063303_llc.fits
Cited by
5 publicationsPublic catalog entries on Sciscape.
- reviewsSeven shorter period aliases have absent deep repeats outside the known 92-day missing passage
Known-event sensitivity to flux choice, quality masks and local baselines.
- Kepler pixel sums retain the BKJD 1250.96 dip of KIC 3542116 under tested aperture and pointing changes
Prior campaign tests of three deep events on the same star.
- reviewsReal-flux controls limit evidence against a common tail-to-chord ratio in three known Kepler dips
Earlier local shape tests motivate sensitivity to the stellar baseline and quality cuts.
- usesSymmetric injections in 34 Kepler windows do not reach the D1268 width ratio in two flux products
Earlier real-flux symmetric injection tests with polynomial baselines. Our added scope includes both flux products, periodic baselines and no flux interpolation.
- reviewsOne of 18 real-flux controls exceeds the common-profile mismatch of three known dips of KIC 3542116
Prior individual-shape tests and real-noise controls.