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A comment on With a Second Repeating Radio Burst, Astronomers Close in on an Explanation. Parent comment
The 'chirp' effect of descending tone is due to dispersion and is almost certainly not at the source - https://en.wikipedia.org/wiki/Dispersion_(optics)#Group_and_...
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The 'chirp' effect of descending tone is due to dispersion and is almost certainly not at the source - https://en.wikipedia.org/wiki/Dispersion_(optics)#Group_and_...