107: Nucleosynthesis: Elements from Stars.

The formation of elements heavier than iron and nickel requires the input of energy.

What are some of these elements.

Where do most of the elements essential for life on Earth come from? The answer: inside the furnaces of stars and the explosions that mark the end of some stars' lives.

Almudena Contribution of all nucleosynthesis processes iron peak Explosive nucleosynthesis:.

Texas, Austin) All of the elements of the Periodic Table beyond.

Oxygen is the (about 65% by mass), calcium helps form and maintain healthy bones and teeth, and iron is a vital part of red blood cells that carry oxygen through the body. All of the oxygen in the Solar System comes from . About half of the calcium and about 40% of the iron also come from these explosions, with the balance of these elements being supplied by explosions of smaller mass, white dwarf stars.

Objective: NAUTILUS will investigate the nucleosynthesis of the chemical elements during the evolution of stars, which is the basis for understanding the chemical.


The process of creating elements by nuclear reactions

Light elements (namely deuterium, helium, and lithium) were produced in thefirst few minutes of the Big Bang, while elements heavier than helium arethought to have their origins in the interiors of stars which formed muchlater in the history of the Universe.

Nucleosynthesis – The Physics Hypertextbook

Most of the heavy elements, from oxygen up through iron, are thought to be produced in stars that contain at least ten times as much matter as our Sun.Our Sun is currently burning, or fusing, hydrogen to helium.

NASA's Cosmicopia - Basics - Composition - Nucleosynthesis

Thank you for this excellent article. I study Astrochemistry and usually start my presentations with the origin of the elements and quickly proceed to the molecules forming in the clouds etc.
Great Christmas present for me. The graphics are nicely explained.
Happy New Year and please keep up the good work

Nucleosynthesis - Universe Today

The Chandra data indicate that the supernova that produced Cas A has churned out prodigious amounts of . Cas A has dispersed about 10,000 Earth masses worth of sulfur alone, and about 20,000 Earth masses of silicon. The iron in Cas A has the mass of about 70,000 times that of the Earth, and astronomers detect a whopping one million Earth masses worth of oxygen being ejected into space from Cas A, equivalent to about three times the mass of the Sun. (Even though oxygen is the most abundant element in Cas A, its X-ray emission is spread across a wide range of energies and cannot be isolated in this image, unlike the other elements that are shown.)

Stellar nucleosynthesis - Wikipedia

Further supportcomes from the consistency of the other light element abundances forone particular baryon density and an measurement ofthe baryon density from the anisotropies in the radiation.

Science news and information about the Sun-Earth environment.

As space expanded, temperatures dropped below those required to sustain fusion, and as a result nucleosynthesis only lasted for about three minutes. A third of the atomic hydrogen was converted into helium and no elements heavier than lithium could synthesize.