Wandering Stars Have Been Adrift Between Galaxies for Billions of Years universetoday
NASA’s Chandra X-ray Observatory obtained this image of the Coma galaxy cluster. Credit: NASA/CXC/Univ. of Chicago/I. Zhuravleva et al/SDSS
The theory that intercluster stars could be stripped from the galaxies where they were born is certainly not without merit. As galaxies move through the intercluster space while orbiting the center of a cluster, they pass through gaseous materials. This creates drag, which pushes gas and dust out of the galaxy and into the intercluster space, providing the raw material for new star formation.
A light fraction that is consistent over billions of years indicates that something must have allowed for the birth of many stars billions of years ago. In any case, this will have immense implications for the study of galaxy formation and evolution, especially where questions regarding Dark Matter are concerned.
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