Sentences with phrase «known galaxy populations»
Not exact matches
The emerging population of dim galaxies likely outnumbers, and is strikingly different from, the typical bright galaxies we know and love, challenging our conventional theories of galaxy formation and evolution.
http://discovermagazine.com/
Scientists still don't know how such galaxies might have formed or how their small populations of stars
Different parent populations, such as the Milky Way disk or halo, dwarf satellite galaxies or globular clusters, are known to have radically different chemical compositions.
Knowing the abundance of oxygen in the galaxy called COSMOS - 1908 is an important stepping stone toward allowing astronomers to better understand the population of faint, distant galaxies observed when the Universe was only a few billion years old, Shapley said.