Distribution of material in the solar system

"dontunderstand" wrote...
in message news:vDMRa.85292$ye4.64870@sccrnsc01...

Looking for answers, or help/pointer toward more information.

If all heavy atoms formed in supernova, and were dispersed at the time of
that supernova explosion, how do we end up with the sun and it's minor
proportion of heavy atoms, and earth with it's major proportion of heavy
atoms.

How does the cloud of dust the solar system builds from provide for the
concentration of material found in our solar system.

Try a short version, ISIDU...

From the supernova explosion of a second generation star, several
cloudy (nebulous) areas are caught up in the movement of material
around the center of a galaxy.

At first very slowly, then with accelerting speed, the material in each
cloud tends to come together toward the general center of the nebula.

Just as a skater who spins faster as he moves his arms toward his
body, the material takes on an accelerating spin. As it condenses,
the spin rate gets faster and faster. The spin finally gets so fast that
material is thrown out violently from the equator to form an "accretion
disk."

The heavier materials, as well as most of the angular momentum, will
wind up in this disk, and then may begin to coalesce into planets and
moons.

While nearly all of the angular momentum from the central core is lost
to the material in the accretion disk, most of the mass remains at the
center. So you have a large, slowly spinning, still condensing mass of
mostly hydrogen at the center.

When this ignites, it becomes a "fusor," otherwise called a "star." It
begins blowing a "stellar wind" of elementary particles that begins to
clear the surrounding area of gas and debris. Only those masses that
have coalesced to considerable size can remain to orbit the central
new star.

And VIOLA... you have a stellar system such as the one in which
we live.

happy days and...
starry starry nights!

--
A smidgeon of fear and a sprinkle of strife
And a whole lotta love till your cold...
Most everyone here wants to live a long life,
Ah! but nobody wants to get old.

Paine Ellsworth

"dontunderstand" wrote in message
news:vDMRa.85292$ye4.64870@sccrnsc01...
Looking for answers, or help/pointer toward more information.

If all heavy atoms formed in supernova, and were dispersed at the time of
that supernova explosion, how do we end up with the sun and it's minor
proportion of heavy atoms, and earth with it's major proportion of heavy
atoms.

How does the cloud of dust the solar system builds from provide for the
concentration of material found in our solar system.

The Sun's radiation pressure and solar wind after ignition
would blow lighter elements out of the inner solar system.
Small planets in the inner solar system would not be able
to hold onto lighter elements in their atmospheres as their
temperatures rose due to insolation.