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J/ApJS/232/26       Catalog of Kepler flare stars      (Van Doorsselaere+, 2017)

Stellar flares observed in long-cadence data from the Kepler mission. Van Doorsselaere T., Shariati H., Debosscher J. <Astrophys. J. Suppl. Ser., 232, 26-26 (2017)> =2017ApJS..232...26V (SIMBAD/NED BibCode)
ADC_Keywords: Stars, variable ; Effective temperatures ; Stars, diameters Keywords: stars: activity - stars: coronae - stars: flare Abstract: We aim to perform a statistical study of stellar flares observed by Kepler. We want to study the flare amplitude, duration, energy, and occurrence rates, and how they are related to the spectral type and rotation period. To that end, we have developed an automated flare detection and characterization algorithm. We have harvested the stellar parameters from the Kepler input catalog and the rotation periods from McQuillan et al. (2014, Cat. J/ApJS/211/24). We find several new candidate A stars showing flaring activity. Moreover, we find 653 giants with flares. From the statistical distribution of flare properties, we find that the flare amplitude distribution has a similar behavior between F+G types and K+M types. The flare duration and flare energy seem to be grouped between G+K+M types versus F types and giants. We also detect a tail of stars with high flare occurrence rates across all spectral types (but most prominent in the late spectral types), and this is compatible with the existence of "flare stars." Finally, we have found a strong correlation of the flare occurrence rate and the flare amplitude with the stellar rotation period: a quickly rotating star is more likely to flare often and has a higher chance of generating large flares. Description: With an automated detection method, we have identified stellar flares in the long cadence observations of Kepler during quarter 15. We list each flare time for the respective Kepler objects. Furthermore, we list the flare amplitude and decay time after fitting the flare light curve with an exponential decay. Flare start times in long cadence data of Kepler during quarter 15. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 68 16850 Catalog of Kepler flare stars for 6662 stars
See also: V/133 : Kepler Input Catalog (Kepler Mission Team, 2009) J/ApJS/211/24 : Rotation periods of Kepler MS stars (McQuillan+, 2014) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 I8 --- KIC Kepler Input Catalog identifier 10- 20 F11.6 d Date Kepler mission time of flare, BJD-2454833 22- 35 F14.6 --- a Amplitude in flux units 37- 46 F10.6 d-1 k Flare decay 48- 54 F7.1 K Teff Effective temperature 56- 62 F7.3 Rsun Radius Radius 64- 68 F5.3 [cm/s2] logg log surface gravity
Acknowledgements: Tom Van Doorsselaere, tom.vandoorsselaere(at)
(End) Tom Van Doorsselaere [CmPA, Leuven], Patricia Vannier [CDS] 08-Nov-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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