Problem : the corona of the sun is being heated
Assumption: dark matter is raining down on the sun and as it is squeezed by gravity it heats up heating the corona. Liquid dark matter phase transitioning to gaseous dark matter also releases heat.
Problem : the area between the sun and the corona is much cooler
Assumption: as the gravity increases the dark matter condenses cooling this area(cooling being relative)
Problem : what causes coronal holes and sunspot’s
Assumption: as the condensed dark matter passes beneath the surface of the sun the temperature rises and the gravity decreases the dark matter reverts to its gaseous state. The closest release for this expansion is at the poles of the sun. As the dark matter nears the surface of the sun again most of it condenses and collapses which promotes circulation upward and outward. This results in the cooler areas on the surface of the sun.