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of s-process nucleosynthesis in massive stars of solar-like ..



This is all because of nucleosynthesis.
Technology
Spectroscopic studies in the atmosphere of a red giant star in the early 1950s/1960s revealed an element called technetium, which provided the first evidence of nuclear activity within stars.
Nucleosynthesis
Prezi by Alicia Wong and Vivien Zhao

What does the phrase "We are made of stardust" mean?
The answer is nucleosynthesis.
HOW IT WORKS

In 1920,
Arthur Eddington
suggested that stars obtained their energy from nuclear fusion.

Fred Hoyle finally introduced the concept of nucleosynthesis in stars in a 1946 paper on

Fred Hoyle, the atheist British astronomer who formulated the theory of stellar nucleosynthesis and originally coined the term, "Big Bang" on March 28, 1949 had this to say at the end of his career three decades later (Note: There are about 2,000 enzymes in the simplest cell, a bacterium, and 'only' about atoms in the entire universe.):

Nucleosynthesis big bang - Essay quiz show

Carbon's Hoyle state calculated at long last - Physics World

It is from
these elements that eventually created everything we know
here on Earth.
Who discovered it?
Stellar Nucleosynthesis (Continued)
Nucleosynthesis
Video Clip
Star dissection!
Different mass stars make different elements, the heaviest being created only in the largest of stars, or supernova.

Small stars:
Contains hydrogen and helium.


This idea was at first rejected, but later built
upon to become nucleosynthesis.


In 1938,
Hans Bethe
contributed greatly
to the concept of nucleosynthesis when he
showed that fusion is the basis for the
energy flow in stars.

CAPERNAUM, ISRAEL | Peter's House, Capernaum …

How the Universe Came into Existence..

International collaboration team directed by Dr. G. Lorusso and Dr. S. Nishimura (P.I., NAOJ visiting professor of 2013) at the RIKEN-Nishina Center for Accelerator-Based Science (chief scientist, Dr. H. Sakurai) produced 110 extremely neutron-rich, heavy radioactive isotopes by using the world highest-performance accelerator at RIKEN-RIBF and succeeded for the first time in measuring their beta-decay half-lives. Although these isotopes called r-process elements are presumed to originate in stellar explosions such as supernovae or binary neutron-star mergers, their astrophysical site has not yet been identified uniquely. Mr. S. Shibagaki (PhD graduate student) and Prof. T. Kajino in the Division of Theoretical Astronomy at NAOJ and the University of Tokyo applied these high precision data to the theoretical calculation of the r-process nucleosynthesis and obtained the results consistent with those expected from the core-collapse supernovae. It was also found that their supernova r-process calculation explains "universality" of the elemental-abundance pattern (as a function of atomic number) between the solar-system and the metal-poor halo stars which had been discovered by spectroscopic observations using the Subaru Telescope and Hubble Space Telescope, etc. These results are published in Phys. Rev. Lett. of American Institute of Physics.

Bethe discovered
fission (the splitting of a heavy nucleus)
as well, providing more information about
nucleosynthesis.


Fred Hoyle
finally introduced the concept of nucleosynthesis in stars in a 1946 paper on
the creation of elements and the synthesis
of hydrogen elements, building on earlier
work by Hans Bethe.
There are two types of nucleosynthesis:
Big Bang nucleosynthesis
and
stellar nucleosynthesis
.

BBN:
According to the Big Bang theory, the early universe was very hot and dense.

Found: The First Atoms In The Universe!!! – Starts With A Bang
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