a long time I hope this news: I have held this area since ancient heavy atoms were formed in the interior of the star, when it ceased to shine and the process consumed more energy than released and therefore the star stopped emitting light.
supernovae do not generate the larger atoms
are brighter than the stars, but can not forge the heavier elements. This is the conclusion of a new study from the analysis of the winds of particles ejected in these explosions.
is assumed that all heavy elements could be created as follows: protons from nickel atoms do not accept more protons because the mutual repulsion of positively charged particles is too strong to overcome. Then, the neutrons, which do not suffer this type of repulsion, enter the nucleus of atoms, which then transform into protons once inside, in a process known as neutron capture or-r process.
is assumed that all heavy elements could be created this way. Now Thomas Janka, Max Planck Institute for Astrophysics in Garching, Germany, and colleagues say that the composition found in the neutrino-driven wind implies that this process can not work for most of the elements.
Instead, Janka suggests that neutron-rich explosions that occur when stars collapse on themselves, they could generate heavier elements, including gold, lead and uranium.
is assumed that all heavy elements could be created as follows: protons from nickel atoms do not accept more protons because the mutual repulsion of positively charged particles is too strong to overcome. Then, the neutrons, which do not suffer this type of repulsion, enter the nucleus of atoms, which then transform into protons once inside, in a process known as neutron capture or-r process.
is assumed that all heavy elements could be created this way. Now Thomas Janka, Max Planck Institute for Astrophysics in Garching, Germany, and colleagues say that the composition found in the neutrino-driven wind implies that this process can not work for most of the elements.
Instead, Janka suggests that neutron-rich explosions that occur when stars collapse on themselves, they could generate heavier elements, including gold, lead and uranium.
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