Reasons to Believe

Metal Enrichment in Early Galaxies

TNRTB Archive - Retained for reference information

Observations of early galaxies provide additional evidence for the chemical evolution of the universe predicted by RTB’s cosmic creation model. After the first three minutes of the universe’s existence, stellar burning produced all the elements heavier than hydrogen and helium. Supernova explosions (dying stars) provide the most efficient mechanism to enrich the gas between stars with these heavier elements. X-ray observations by the Chandra Observatory of early galaxies confirm that type-Ia supernovae produce the bulk of the metals detected in these galaxies. However, the other type I and type II supernovae cannot explain the remaining chemical composition. An additional enrichment from a third type of supernova is necessary to account for the chemical abundances. Observational evidence for these first stars, called massive population III stars, continues to grow, thereby affirming RTB’s creation model.

o   Philip J. Humphrey and David A. Buote, “A Chandra Survey of Early-Type Galaxies. I. Metal Enrichment in the Interstellar Medium,” Astrophysical Journal 639 (2006): 136-56.


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o   Hugh Ross, “A Beginner’s—and Expert’s—Guide to the Big Bang”

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Subjects: Galaxy Design

Dr. Hugh Ross

Reasons to Believe emerged from my passion to research, develop, and proclaim the most powerful new reasons to believe in Christ as Creator, Lord, and Savior and to use those new reasons to reach people for Christ. Read more about Dr. Hugh Ross.