Where Does Gold Come From?

Where Does Gold Come From?


In mexico, gold the the Mesoamerican
culture was extremely valuable. Particularly the Aztecs believed that
gold was actually sweat of the Sun and they can actually pick
up the pieces of the sweat of the Sun it had of course a strong spiritual
value because the God of Sun was a very important component of the culture what’s interesting is of course that the
gold was not created in the Sun it has this beautiful properties that you
know it’s shiny is yellow and it’s natural to assign it
to an origin in the Sun but today one of the biggest mysteries is
you know where gold come from and in fact not only gold but a large fraction of
their very precious elements such as titanium silver we still haven’t figured out where they
come that what type of explosive phenomenon can
make these heavy elements which require probably the most extreme conditions in
the universe, the highest densities and the highest temperatures to make
these elements and in fact the stars that I’m more interested in are those sort of rock stars which basically are extremely
luminous but they just have very short lifetimes and when they die they produce this
very very heavy neutron star or black holes. And in fact if I take
a cup of neutron star matter it weighs as
much as mount everest the story of the formation of heavy
elements is intimately linked to neutrons stars. So one, a very massive star more massive than 20 times the mass of
our Sun collapses. In the core basically the
remanant that becomes the neutron star. Its extremely hot and very high densities. So one model is that basically
these elements can be produced in supernova explosions. The model of neutron star production has basically encountered lots of problems
in terms of whether or not it can actually make the necessary conditions I’ve been working on an alternative model
that has significant gained popularity in the past five years which is actually
a little more extreme. So the ingredients are two neutron stars and in fact fifty
percent of stars actually live in pairs and they’re orbiting around each other now because these objects are so dense
they actually the space and time and when they touch each other that
generates billion of degree heat very high density and they eject mass
and we believe in that ejection they produce about
Jupiter mass of pure gold that is ejected into the external medium and we believe
that in fact that may be the main channel to produce gold and other heavy elements.

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