I search the reference papers about flare, but nobody said something about below clearly. Could anyone give some help?
If a single X-ray decay without eclipse or other irrelevant factors is not able to fitted well by an exponential decay, can we say it is not a flare?
Can exponential decay be a criteria? Could somebody specify a flare with a weird shape or non-exponential decay? How large is the decay index (e**(-tau)) tau acceptable?
What kind of ratio(rising time/decay time) is acceptable?
If we cut a timing series of a flare into several parts, can we tell whether they are from the same flare by their X-ray spectra ?
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