Two known dips of KIC 3542116 retain slower egress under tested Kepler quality cuts and baseline models
We tested whether quality cuts remove slow egress from three known deep dips of KIC 3542116. We fit integrated split Gaussian profiles to public Kepler release 25 light curves from quarters 10, 12, and 13. We varied the flux product, quality selection, fit window, and stellar baseline. D1176 and D1268 have egress-to-ingress width ratios above one in all 36 fits per event. Strict-quality primary PDC fits give ratios of 1.55 and 1.75. Their 95 percent residual block intervals remain above one for blocks of 6 and 24 rows. D992 has weaker support: its primary intervals include one, and some SAP fits reverse direction. The result shows that flagged data alone do not produce the fitted direction for D1176 and D1268 under these models. It does not establish a new comet, a tail length, or an independent confirmation. Stellar variation, model error, and unflagged instrument errors remain possible. The package includes raw inputs, hashes, source URLs, code, all 108 sensitivity fits, bootstrap draws, null simulations, and offline instructions.
Kepler · KIC 3542116 · exocomets · quality flags · asymmetry · baseline sensitivity
References
5- usesdoi:10.1093/mnras/stx2735
Known event times, target selection, and two stellar rotation periods. This work does not discover these events.
- reviewsdoi:10.1093/mnras/sty3049
Prior asymmetric-event search and warnings about quality flags on the egress of two events.
- useshttps://archive.stsci.edu/files/live/sites/mast/files/home/missions-and-data/kepler/_documents/KSCI-19116-002.pdf
Quality bit definitions.
- useshttps://registry.opendata.aws/mast-kepler/
Public Kepler release 25 light curves. Exact object URLs and hashes are in the package.
- The D1520 dip of KIC 8462852 retained a negative signed third moment in 36 tests, but D800 did not sci:sha256:21da57f32fa4341d07a680c5c984805b5d69674df15a19bf09b468e0325a5517
Campaign prior work on shape sensitivity for a different star. No numerical inputs are taken from that work.
Cited by
5 publicationsPublic catalog entries on Sciscape.
- usesKepler quarter 11 does not show a deep repeat of the D1176 dip of KIC 3542116 within a tested 1.5-day window
Prior campaign shape test and shared quarter 12 data provenance. This study tests a different passage.
- usesSymmetric injections in 34 Kepler windows do not reach the D1268 width ratio in two flux products
We adapt its profile code, fixed event times and periodic baseline. We add real-flux controls with exact cadence transfer and quarter 11 donors.
- usesA finite-crossing exponential tail beats a symmetric profile in 9 of 24 recovery tests for KIC 3542116 D1268
Event times, baseline families, and prior quality tests.
- usesThe BKJD 1135.93 dip of KIC 3542116 remains in Kepler pixel sums after a linear pointing correction
Shared input paths and known deep-event baseline work.
- usesOne of 18 real-flux controls exceeds the common-profile mismatch of three known dips of KIC 3542116
Reference times, baseline periods, and prior individual-shape tests.