Astronomers
at the European Southern Observatory using the Atacama Large
Millimetre/submillimetre Array (ALMA) have discovered a massive ancient
cosmic collision over 90 percent of the distance across the observable
universe.
The collision observed is part of the early formation
stage of one of the largest type of structures in the known universe.
Recent findings suggest that the process took significantly less than
time than models suggested and it raises questions about how galaxies
evolved.
According to the National Radio Astronomy Observatory,
the individual galaxies in the cluster are held together by dark
matter. During the universe's first few million years, matter both
visible and dark began to collect into larger concentrations, eventually
creating the first galaxy clusters. SPT2349-56 is a so-called
protocluster, considered to be the building-block stage for galaxy
clusters.
"The
lifetime of dusty starbursts is thought to be relatively short, because
they consume their gas at an extraordinary rate," said Iván Oteo, a postdoctoral researcher at the University of Edinburgh.
"At any time, in any corner of the Universe, these galaxies are usually
in the minority. So, finding numerous dusty starbursts shining at the
same time like this is very puzzling, and something that we still need
to understand."
Read more about this fascinating story at: https://www.space.com/40412-ancient-galaxy-collision-megamerger.html
Or read the full studies at: http://www.eso.org/public/archives/releases/sciencepapers/eso1812/eso1812a.pdf
http://www.eso.org/public/archives/releases/sciencepapers/eso1812/eso1812b.pdf
Image: Artist's Impression of the 14 galaxies via S. Dagnello; NSF/NRAO/AUI
Popular Posts
-
When it comes to cosmic timescales, the human mind is often incapable of grasping their sheer enormity. So when a group of scientists an...
-
An artist’s rendering of how the first stars in the universe may have looked. N.R. Fuller, National Science Foundation Karl G...
-
Sabrina Gonzalez Pasterski (1993-) is 23 Cuban-American pursuing her PhD at Harvard University. Her field of study is physics, more specif...
Get the news of the universe sent to your email daily 📬
Tuesday, May 1, 2018
Astronomers Discover Ancient Galactic Collision
About NewsOfTheUniverse.com
The BIGGEST daily headlines in Astronomy, Technology, Biology and in All of Nature! We also feature talented astrophotographers and their works weekly.Initially beginning as a small-time hobby of a bored high-school student, NewsoftheUniverse.com has grown across multiple platforms and has grown into a distinct and unique entity. Run exclusively by students of all ages, NewsoftheUniverse.com is your one stop to finding your daily scoop on all things astronomy, technology and biology - all to be read in less than five minutes.
Subscribe to:
Post Comments (Atom)
No comments:
Write comments