![]() ![]() “The story underneath the structure growth is amazingly consistent with what we learn from the expansion history.” “The analyses have also provided measurements on how the diverse structures in the universe grow over time,” says Zheng Zheng, professor of physics and astronomy at the U. We also know its expansion history over the last few billion years from galaxy maps and distance measurements, including those from previous phases of the SDSS. We know what the universe looked like in its infancy thanks to thousands of scientists from around the world who have measured the relative amounts of elements created soon after the Big Bang, and who have studied the Cosmic Microwave Background. The results come from the extended Baryon Oscillation Spectroscopic Survey (eBOSS), an international collaboration of more than 100 astrophysicists that is one of the SDSS’s component surveys. “For five years, we have worked to fill in that gap, and we are using that information to provide some of the most substantial advances in cosmology in the last decade.” “We know both the ancient history of the universe and its recent expansion history fairly well, but there’s been a troublesome gap in the middle 11 billion years,” said cosmologist Kyle Dawson of the University of Utah, who led the team announcing today’s results. At the heart of the new results are detailed measurements of more than 2 million galaxies and quasars covering 11 billion years of cosmic time. The Sloan Digital Sky Survey (SDSS) released today a comprehensive analysisof the largest 3-D map of the universe ever created. ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |