Quote:
Originally Posted by Ken G
Yeah, that doesn't sound like it has anything at all to do with quantum gravity, the energies are nowhere close to Planck scales. It instead sounds like a challenge to basic relativity, the only one I've heard of in a long time-- but my money is still on error in observational interpretation.
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KenG. Although flare gamma ray emission is not identical to classical GRB's, there's a history there. Most GRB's begin as "hard"...>300 kev...bursts, and then attenuate to "softer"..<300 kev fluences. But it is not always the case. (see section 9d in the link).
There are at least some bursts that begin with soft (the authors will call it NHE...non hard energy) fluence, and then switch to hard (HE, their designation)..fluence. They also find that single sources are capable of both types of fluences within a single burst, or that repeat bursts may be only of a single mode (HE or NHE) without contamination of the other. So, if a physical mechanism exists for inverted mode emission in classical GRB's, can it be ruled out entirely in a Markarian flare emission, too? Can a pair of isolated soft (NHE) followed by hard (HE) bursts occur within a four minute time frame?...seems like thin statistics to claim a failing of relativity here, based on this sole event. pete.
see:
http://www.journals.uchicago.edu/ApJ...35715.html#fg9