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Guru

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"No Good Guesses" for Gamma Notch

10/21/2020 7:37 PM

Per:

The Sun Is Stranger Than Astrophysicists Imagined

...

"But there are no good guesses about how the sun’s magnetic field might create the dip in the gamma-ray spectrum at 10 trillion trillion hertz. It’s such an unusual feature that some experts doubt that it’s real. But if the absence of gamma rays around that frequency is a miscalculation or a problem with Fermi’s instruments, no one has figured out the cause. “It does not seem to be any instrumental effect,” said Elena Orlando, an astrophysicist at Stanford and a member of the Fermi team."...

Why are there no good guesses ? Since there are no good guesses, how about some wild, crazy ones ! Per some random web photon energy calculator a gamma at 1019 hertz would have an energy of 41356845 Mev. Then per some random web E=mc2 calculator 41356845Mev has an equivalent mass of 44398.2 atomic mass units. This is ~40,000 protons (hydrogen nuclei) or ~800 iron nuclei. The cosmic ray base proton(~1amu) itself is therefore dwarfed by the kinetic energy it carries. Now we could just assume chaotic, heat generating interaction but that is unlikely to generate a notch. In this realm of energies, especially in the presence of mammoth magnetic fields, surprising things might indeed happen. The notch in the gamma spectrum is, itself, a surprising thing.

In the visible spectrum, there is the well known electron energy level quantized absorption notch creation. What do we have for notch creation at these energies ? I assert that nuclear processes (involving energy to mass conversion) is the prime candidate in this realm of energies. Even those would involve processes creating 40k protons or 800 iron nuclei to digest a single cosmic ray of this specific energy. With severe physical alignments created by intense magnetic fields such wholesale absorption of energy might just be plausible. I am curious to know whether their "notch" is actually a set of semi-periodic notches. Does anyone have any gross corrections to my swag ? Can anyone detail any further analysis like conservation of charge ?... Can anyone think of any other alternatives for high energy gamma notch creation ?

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thewildotter

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#1

Re: "No Good Guesses" for Gamma Notch (get out your gamma grid dip meter)

10/21/2020 8:00 PM

It's the ID gap of dark matter....Dark matter is being detected in the gamma ray spectrum....

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#2
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Re: "No Good Guesses" for Gamma Notch (get out your gamma grid dip meter)

10/22/2020 12:49 AM

Let's assume for a minute that it is dark matter, what would that tell us about the nature of dark matter....

Maybe it's just a resonance wave form with an extremely high frequency....

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Re: "No Good Guesses" for Gamma Notch (get out your gamma grid dip meter)

10/22/2020 11:19 PM

"High-resolution self-consistent numerical simulation of electromagnetic wave phenomena in an axisymmetric capacitively coupled plasma reactor is reported. A prominent centre-peaked plasma density profile is observed for driving frequencies of 60 MHz and is consistent with observations in the literature and accompanying experimental studies. A power spectrum of the simulated wave electric field reveals the presence of well-resolved high frequency harmonic content up to the 20th harmonic of the excitation frequency; an observation that has also been reported in experiments. Importantly, the simulation results reveal that the occurrence of higher harmonics is strongly correlated with the occurrence of a centre-peaked plasma density profile."

https://iopscience.iop.org/article/10.1088/0022-3727/46/47/472001/meta

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#4
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Re: "No Good Guesses" for Gamma Notch (get out your gamma grid dip meter)

10/22/2020 11:45 PM

We know practically nothing about dark matter now. Even its existence is unproven IMO. I hope this phenomena leads to some knowledge about it. I find it rather amusing that scientists continue to be surprised that they don't know everything.

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#6
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Re: "No Good Guesses" for Gamma Notch (get out your gamma grid dip meter)

10/23/2020 7:39 AM

I really don't think they (lumping all scientists into one group) take it personally. When someone yells BOO! and one is surprised, it wasn't because they didn't know it was possible to yell boo.

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#5

Re: "No Good Guesses" for Gamma Notch

10/23/2020 6:01 AM

Why discuss 1019 hertz? 10 trillion trillion = 1026. Am I missing something?

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#7
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Re: "No Good Guesses" for Gamma Notch

10/23/2020 8:59 AM

1 billion =109, 1 billion billion = 1018, so 1019 = 10 billion billion.

1 trillion = 1012, so 10 trillion trillion = 1025

(But maybe it depends on which side of the Atlantic...)

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#8
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Re: "No Good Guesses" for Gamma Notch

10/23/2020 10:10 AM

Yes, my mistake. I meant 1025. But it's still not 1019 as in the article.

Billion over here years ago was 1012, but nowadays it's 109, same as you guys, and 1 trillion = 1012.

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#9

Re: "No Good Guesses" for Gamma Notch

10/23/2020 10:42 AM

The authors of the original paper posited the following five hypotheses for the 30-50 Gev (0.72540 - 1.2090 x 1025 Hz) notch:

1. Two different magnetic field structures, one effective below 30 Gev and the other effective above 50 Gev

2. Gamma-ray absorption between 30-50 Gev

3. Solar neutrons 30-50 Gev. The Fermi-LAT has algorithms to remove background changes in cosmic ray (charged particles). Solar neutrons could be mistaken for cosmic ray background and calibration lowers the curve for 30-50 Gev.

4. A statistical fluke

5. Intrinsic (not cosmic ray generated) solar gamma ray emission.

https://arxiv.org/pdf/1804.06846.pdf

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