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Dark matter role in chosmoshpere


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Modelling of electrical phenomenom acting within a plasma more than adequately explains the behaviour of the chromosphere without the need to invoke "dark energy". Electrical engineers can recreate scaled models on Earth of what is observed on the Sun without the need for wildly speculative theoretical gap fillers.

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The thread's title is "dark matter" but the first sentence "dark energy". These two notions differ; which one is meant?


To my feeling, "could it be playing a role" is too vague. Do you propose a precise mechanism?


As an element of answer, dark matter is not concentrated at stars, because the total mass of stars - especially our Sun - is known and it does not explain gravitation effects of galaxies. As well, gravitational lensing is observed in some galaxies where ordinary matter is not.


So dark matter would be very diffuse, like still unobserved particles that accumulate at galactic scale only, or might perhaps be concentrated - though many size scales have been rejected by observation - but separated from normal stars and gas clouds.


That said, dark matter might interact with our Sun's chromosphere even if very diffuse. But how? To stay diffuse, dark matter has to interact very little with ordinary matter; a common representation is that they interact only by gravitation.


And could you tell more about the chromosphere observed at an other star?

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