9 thoughts on “ Birth And Death Of A Star ”

1. Birth of Stars. Created by Sal Khan. Google Classroom Facebook Twitter. Email. Life and death of stars. Birth of stars. This is the currently selected item. Accreting mass due to gravity simulation. Challenge: Modeling Accretion Disks. Becoming a red giant. White and black dwarfs.

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2. J. Piekarewicz (FSU-Physics) The Birth, Life, and Death of Stars Fall 5 / 14 The Birth of Carbon: The Triple-Alpha Reaction The A=5 and A=8 Bottle-Neck p +!5Li!p +(t 1=2ˇs) 8+!Be!+(t.

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3. Most stars are born inside great clouds of gas and dust called nebulas. The process begins when a nebula starts to shrink, then divides into smaller, swirling clumps. Each clump becomes ball-shaped, and as it continues to shrink the material in it gets hotter and hotter. When the temperature in the core reaches about 18 million °F (10 million °C), massive explosions called nuclear fusion begin and a .

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4. After that, the hydrogen fuel is depleted and the star begins to die. Life span: The most massive stars have the shortest lives. Stars that are 25 to 50 times that of the Sun live for only a few million years. Stars like our Sun live for about 10 billion years. Stars less massive than the Sun have even longer life spans. Star Birth Web Links.

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5. The Birth of Stars: The Death of Stars: Sun-like Stars (Up to times the mass of the Sun) Huge Stars (From to 3 times the mass of the Sun) Giant Stars (Over 3 times the mass of the Sun) THE DEATH OF STARS Stars expand as they grow old. As their core runs out of hydrogen and then helium, the core contacts and the outer layers expand, cool.

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6. When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant. While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called a supernova. The death of massive stars can trigger the birth of other stars. Neutron stars are the fastest-spinnng objects in the universe.

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7. The star collapses by its own gravity and the iron core heats up. The core becomes so tightly packed that protons and electrons merge to form neutrons. In less than a second, the iron core, which is about the size of Earth, shrinks to a neutron core with a radius of about 6 miles (10 kilometers).

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8. Birth and Death of a Star Updated February 11, | Infoplease Staff Astronomers think that a star begins to form as a dense cloud of gas in the arms of spiral galaxies. Individual hydrogen atoms fall with increasing speed and energy toward the center of the cloud under the force of the star's gravity.

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9. Most stars take millions of years to die. When a star like the Sun has burned all of its hydrogen fuel, it expands to become a red giant. This may be millions of kilometres across - big enough to swallow the planets Mercury and Venus. After puffing off its outer layers, the star collapses to .

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