Why Is Iron Important For High Mass Stars at Nina Pierson blog

Why Is Iron Important For High Mass Stars. In stars with masses higher than about 8 solar masses, nuclear reactions involving carbon, oxygen, and still heavier elements can build up nuclei as heavy as iron. The core density is 4 x 10 17 kg/m 3. This is very degenerate and cannot be. As a massive star nears the end of its evolution, its interior resembles an onion. For stars that begin their evolution with masses of at least 10 \(m_{\text{sun}}\), this core is likely made mainly of iron. Iron cannot fuse, and when it tries the end result is a highly compacted core and intense temperatures. The late stages of evolution occur very quickly. The creation of new chemical elements is called nucleosynthesis. Ultimately, all stars must use up all of their available energy. (for stars with initial masses in the range 8 to 10 \(m_{\text{sun}}\), the core is likely made of oxygen, neon, and magnesium, because the star never gets hot enough to form elements as heavy as iron.

PPT Part 2 Stars PowerPoint Presentation, free download ID1966561
from www.slideserve.com

(for stars with initial masses in the range 8 to 10 \(m_{\text{sun}}\), the core is likely made of oxygen, neon, and magnesium, because the star never gets hot enough to form elements as heavy as iron. The creation of new chemical elements is called nucleosynthesis. As a massive star nears the end of its evolution, its interior resembles an onion. This is very degenerate and cannot be. For stars that begin their evolution with masses of at least 10 \(m_{\text{sun}}\), this core is likely made mainly of iron. Iron cannot fuse, and when it tries the end result is a highly compacted core and intense temperatures. The late stages of evolution occur very quickly. The core density is 4 x 10 17 kg/m 3. Ultimately, all stars must use up all of their available energy. In stars with masses higher than about 8 solar masses, nuclear reactions involving carbon, oxygen, and still heavier elements can build up nuclei as heavy as iron.

PPT Part 2 Stars PowerPoint Presentation, free download ID1966561

Why Is Iron Important For High Mass Stars As a massive star nears the end of its evolution, its interior resembles an onion. In stars with masses higher than about 8 solar masses, nuclear reactions involving carbon, oxygen, and still heavier elements can build up nuclei as heavy as iron. (for stars with initial masses in the range 8 to 10 \(m_{\text{sun}}\), the core is likely made of oxygen, neon, and magnesium, because the star never gets hot enough to form elements as heavy as iron. Ultimately, all stars must use up all of their available energy. As a massive star nears the end of its evolution, its interior resembles an onion. The late stages of evolution occur very quickly. This is very degenerate and cannot be. For stars that begin their evolution with masses of at least 10 \(m_{\text{sun}}\), this core is likely made mainly of iron. Iron cannot fuse, and when it tries the end result is a highly compacted core and intense temperatures. The core density is 4 x 10 17 kg/m 3. The creation of new chemical elements is called nucleosynthesis.

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