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Astronomy Picture of the Day
On the Origin of Gold
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zorg.ch
#113366
by
[z]Barbara Harris
@
12.09.2011 00:00
- nach oben -
On the Origin of Gold
Explanation: Where did the
gold
in your jewelry originate?
No one is completely sure
. The relative average abundance in our
Solar System
appears higher than can be made in the
early universe
, in
stars
, and even in typical
supernova explosions
. Some
astronomers have recently suggested
that neutron-rich heavy
elements
such as
gold
might be most easily
made
in rare
neutron
-rich explosions such as the
collision
of
neutron stars
.
Pictured above
is an artist's illustration depicting two
neutron stars
spiraling in toward each other, just before they
collide
. Since neutron star collisions are also suggested as the origin of
short
duration
gamma-ray bursts
, it is possible that you already own a souvenir from one of the most
powerful explosions
in the universe.
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