On Jul 24, 10:17*am, "Painius" wrote:

So Jupiter and Saturn possess about 90% of all the
angular momentum in the Solar System. *And the vast
majority of the rest of the angular momentum is had
by all the other major planets and minor planets that
go around the Sun. *This has presented science with a
very interesting puzzle...

Why does the Sun, which possesses the vast majority
of the mass in the Solar System, possess such a very
small ration of the angular momentum?

Yo Paine
If you recomember, in the earlier discussion on
this subject, it was suggested that perhaps the fully-formed Sun did
not "lose" angular momentum but didn't have it in the first place.
This would be because the rapidly spinning proto-Sun accreted *not*
via its equator as is commonly supposed, but via its poles. The inflow
from the accretion disc would naturally favor the poles, as has been
discussed here many times in relation to BHs of high spin rate. And as
observed frequently throughout the cosmos, there are bipolar jets
associated with accreting protostars. These jets are an unmistakable
signature of *bipolar accretion* as outlined above.
In such a scenario, the infall from the accretion
disc separates into twin flows, riding 'up and over' the final hump
before plunging in through the poles. Thereupon, the flows collide
head-on, 'squashing out' into a disc, the collision energy going into
superheating of the sun-to-be. The collision energy, instead of going
into angular momentum as commonly supposed, is helping stoke the fires
of the nascent Sun, toward the day of Ignition. Upon Ignition, the
disc swells, balancing against gravity, to the self-luminous orb of
slow rotation. Our Sun is born.
Bipolar accretion is a basic tenet of the CBB
model, a fundamental pillar in fact. The naturally high spin rate of
accreting objects makes them *gravitic dipoles* and dictates the
natural accretion pathway is via the poles. The higher the spin rate,
the more acutely the infalls *must* align to the polar axis. This is
the Lense-Thirring or 'frame dragging' effect carried to the extreme,
as with accreting BHs. With accreting protostars the effect would be
not as extreme, but the infalls would still be predominantly via the
poles. The end result of this star-forming process would be a star of
slow rotation, answering the question of "why such low angular
momentum?"