Pearls of knowledge
  • Home
  • Pearls Know Blog
  • Knowledge
  • Pictures & Quotes
  • Contact

BOSS Great Wall

1/16/2018

0 Comments

 
Picture

Billion-light-year galactic wall may be largest object in cosmos
​Astronomers peering into the distant universe have discovered the BOSS Great Wall, a vast superstructure of 830 galaxies that is a billion light years across
DAILY NEWS 8 March 2016
By Joshua Sokol
Here’s the latest reminder that space is really, really big. At a cool billion light years across, a distant complex of galaxy superclusters may be the largest structure yet found in the cosmos.
Individual galaxies like our own Milky Way are bound together by gravity into clusters, and these clusters clump into superclusters. These can in turn link together into long lines of galaxies called walls. On the grandest scales, the universe resembles a cosmic web of matter surrounding empty voids – and these walls are the thickest threads.

In the nearby universe, we know of the Sloan Great Wall, and in 2014, the Milky Way was found to be part of a supercluster system called Laniakea. Both are enormous. But the newly spotted BOSS Great Wall, with a total mass perhaps 10,000 times as great as the Milky Way, is two-thirds bigger again than either of them.
Heidi Lietzen of the Canary Islands Institute of Astrophysics and her team found it by looking for clumped-together galaxies in a vast area between 4.5 and 6.4 billion light years away. In all that space, one dense, giant system stood out.
“It was so much bigger than anything else in this volume,” Lietzen says. The BOSS Great Wall contains 830 galaxies we can see and probably many more that are too far away and faint to be observed by survey telescopes.
Like other galaxy walls, this one’s size is a little subjective.
“I don’t entirely understand why they are connecting all of these features together to call them a single structure,” says Allison Coil of the University of California in San Diego. “There are clearly kinks and bends in this structure that don’t exist, for example, in the Sloan Great Wall.”
Brent Tully of the University of Hawaii, who discovered the Laniakea cluster, says that deciding what constitutes a single structure depends on your definition.
A denser region of galaxies is traditional, he says, and indeed the new wall contains five times as many galaxies as an average patch of sky. But tracking whether the galaxies are moving together – impossible, given how far away they are – might give a different answer.
Galaxy superclusters also have competition for the “biggest known object” crown. Some distant light sources likequasars or gamma ray bursts seem to be clustered together in certain regions of the sky. If they are truly connected, they belong to structures so large that current cosmological theories can’t explain them.
But many astronomers aren’t sure that these objects really belong together, as they lack a physical mechanism to link them. Instead, they prefer to look for huge linkages of galaxies that sit on the cosmic web. In that arena, the new-found BOSS Great Wall is king.
Journal reference: arxiv.org/abs/1602.08498, to appear in Astronomy & Astrophysics

0 Comments

    Categories

    All
    2D Hologram Universe?
    3D Molecular Printer
    Are We Living In A
    Artificial Brains
    Baby Steps
    Bacterial 'FM' Radio
    Bacteria Used For Electric Power
    Beautiful Mathematics
    BOSS Great Wall
    Carbon Nanotube Computer
    Cheap Energy Discoveries
    Children's Cells Living In Mother's Brains
    Cognitive Computing
    Consciousness
    Consciousness & Quantum Physics
    Cosmic Web Discovered
    Debate
    Dna By Design
    DNA Computing
    Earth's Invisible Shield
    Earth Sits Among Council Of Giants
    Editing DNA
    Failed Stars - Brown Dwarfs
    Fake Universe?
    Futuristic Computers
    God & Quantum Physics
    God & Turtles
    Graphene
    Gravitational Waves Prove Big Bang
    Insect With Interlocking Gears
    Intelligent Design
    In The News
    Invisibility
    Jewel Found At The Heart Of Quantum Physics
    Life In A Simulation
    Living Earth Simulator
    Magic Eye
    Melt Away Electronics
    Merry Christmas
    Milky Way Supercluster
    Molecular Machines
    Multi-Dimensional Universe In Brain Networks
    Nanotech And Jesus Christ
    Plasmonics: Squeezing Light Into Metals
    Proof God Exists
    Proof Of Heaven
    Proof We Live In A Computer Simulation
    Pure Light Converted Into Matter
    Quantum Computing Magic
    Quantum Teleportation
    RNA Shows Design
    RoomAlive
    Runaway Star Cluster
    Science Breakthroughs Of 2013
    Solar Roadways
    Son Of God
    Star Song
    Superior Design In A Fish
    The Future Of Education
    The Illusion Of Reality
    The Illusion Of Time
    There's No Place Like Home
    Traumatic Events Are Passed To Offspring
    Trees In The Garden
    Universe Is A Hologram
    Universe Measured
    Universe Simulation Created In Lab
    Virus Salvation & Your CPU
    We Are Queen Esther
    Your Brain Is Wired For God

    Author

    Melody Crombie

    Archives

    September 2021
    January 2018
    October 2017
    September 2017
    October 2015
    August 2015
    March 2015
    November 2014
    October 2014
    September 2014
    August 2014
    July 2014
    June 2014
    May 2014
    April 2014
    March 2014
    February 2014
    January 2014
    December 2013
    November 2013

    RSS Feed

Proudly powered by Weebly