English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present a comprehensive study of the active dM4e star GJ 1243. We useprevious observations and ground-based echelle spectroscopy to determine thatGJ 1243 is a member of the Argus association of field stars, suggesting it is$\sim 30-50$ Myr old. We analyze eleven months of 1-minute cadence data fromKepler, presenting Kepler flare frequency distributions, as well as determiningcorrelations between flare energy, amplitude, duration, and decay time. We findthat the exponent $\alpha$ of the power-law flare energy distribution varies intime, primarily due to completeness of sample and the low frequency ofhigh-energy flares. We also find a deviation from a single power law at highenergy. We use ground-based spectroscopic observations simultaneous with theKepler data to provide simultaneous photometric and spectroscopic analysis ofthree low-energy flares, the lowest-energy dMe flares with detailed spectralanalysis to date on any star. The spectroscopic data from these flares extendconstraints for radiative hydrodynamic (RHD) flare models to a lower energyregime than has previously been studied. We use this simultaneous spectroscopyand Kepler photometry to develop approximate conversions from the\textit{Kepler} bandpass to the traditional $U$ and $B$ bands. This conversionwill be a critical factor in comparing any Kepler flare analyses to the canonof previous ground-based flare studies.

Kepler Flares IV: A Comprehensive Analysis of the Activity of the dM4e Star GJ 1243