I like this study because, in the words of one of the authors, it reveals how little we know about the closest star to our planet. The current dogma is that gamma rays can only come from outside the Solar system, and are usually the result of supernova explosion somewhere in our (or outside of)...
In one of his interviews, Peat postulated the ides of so-called "continuous creation" occurring everywhere in the Universe and the "cosmic" rays representing this newly created matter accounting rather easily for the Universal Background Radiation hailed as indisputable proof of the Big Bang...