VizieR Online Data Catalog: Superflares on solar-like stars (Vasilyev+, 2022)

We presented a new method to identify the flare location in the target pixel files using the PSF-fitting procedure. Previous flare detection methods were mostly based on the analysis of the light curves only. Our light curve analysis detected 2274 cases that could potentially be interpreted as a flare on the target star. However, the PSF-fitting of the pixel data revealed that for more than 1900 of these cases the target star was not enclosed in the ellipses for both cadences tflare and tflare+Δt. Thus, the flux excess detected in the light curve might arise from some other source of contamination, and cannot be uniquely attributed to the target star. Even after the PSF-fitting of the pixel data, not all detected flares can be associated with the target star. Of the 342 detected flares, only 283 actually happened on the 178 target stars, while the remaining cases either happened on a fainter background star or cannot be uniquely attributed. Out of these 283 events, 45 flares happened on 22 stars for which rotational periods have been measured by McQuillan et al. (2014ApJS..211...24M, Cat. J/ApJS/211/24), and 238 flares occurred on 156 solar-like stars with unknown rotation periods.

(1 data file).