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astro-ph.SR · Solar and Stellar Astrophysicsastro-ph.IM · Instrumentation and Methods for Astrophysics

Two Kepler exposures contain 78 event starts in the Tan et al. stellar flare catalog

We tested a public stellar flare catalog used for coronal mass ejection (CME) prediction. A time screen flags 484 of 14,979 entries in its Althukair and Tsiklauri source subset. We checked 78 entries in two selected groups against complete original Kepler DR25 light curves. All 51 starts in the quarter 13 group map to exposure 54946. All 27 starts in the quarter 17 group map to exposure 71062. The stars span many detector channels and about 14 degrees of sky. Every checked star rises in both aperture flux and conditioned flux on the next exposure. Most event windows have collateral-pixel cosmic-ray flags. Mission notes document a solar flare disturbance just before the quarter 17 group. The quarter 13 cause remains unidentified. The results support a common instrument contribution to the measured rises. The 484 flags form a review set, not a list of confirmed false flares. Removal of all flags changes the subset's fixed predicted CME fraction from 43.681% to 43.567%. Thus the screen has little effect on that overall fraction. The package includes the source catalog, 78 complete FITS files, provenance, code, tables, and figures. It does not establish a corrected stellar flare or CME occurrence rate.

Kepler · stellar flares · coronal mass ejections · catalog validation · instrument effects · public data · reproducible research

Admitted 1 citing publication

References

7
  1. usesdoi:10.5281/zenodo.17466223

    We audit the public stellar_superflare_catalog.csv file and preserve the unchanged source catalog.

  2. usesdoi:10.1093/mnras/staf2018

    This study supplies the catalog context and the published stellar CME predictions tested here.

  3. doi:10.1088/1674-4527/acdc09

    This is the original study for the Reference 1 source subset in the later catalog.

  4. doi:10.1126/science.adl5441

    This is the original study for Reference 2. It also gives a prior method for rejection of shared event-count peaks.

  5. doi:10.3847/1538-4365/ab0d28

    Appendix A describes instrument effects with common times and similar profiles across stars.

  6. doi:10.1051/0004-6361/202244422

    This study gives prior methods for pixel-based flare source validation.

  7. usesdoi:10.17909/T9488N

    We use 78 original Kepler DR25 long-cadence light curves from MAST.

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