Polar Crown Prominences

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About Polar Crown Prominences (PCP):

These are similar to normal solar prominences, which are loops of plasma, or ionized gas, that is ejected from the solar surface by magnetic fields.
They occur near the sun’s magnetic poles at latitudes between 60 and 70 degrees North and South.
Due to the much stronger magnetic fields near the poles they collapse back towards the sun.
This collapse back to the sun has earned them the nickname “plasma waterfalls.”

What is a solar prominence?

It is a large, bright feature extending outward from the Sun’s surface.
These are anchored to the Sun’s surface in the photosphere, and extend outwards into the Sun’s hot outer atmosphere, called the corona.
It forms over timescales of about a day, and stable prominences may persist in the corona for several months, looping hundreds of thousands of miles into space.
The red-glowing looped material is plasma, a hot gas comprised of electrically charged hydrogen and helium.
This plasma flows along a tangled and twisted structure of magnetic fields generated by the sun’s internal dynamo.
An erupting prominence occurs when such a structure becomes unstable and bursts outward, releasing the plasma.

Q1) What is a Solar flare?

A solar flare is a sudden and intense burst of radiation and energy that is released from the sun’s surface. This burst of energy is typically accompanied by a coronal mass ejection (CME), which is a massive expulsion of plasma and magnetic fields from the sun’s corona.

Source: Astrophotographer Captures 60,000-Mile-Tall ‘Wall Of Plasma’ On The Sun