Largest Structures in the Universe
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Questions and Answers

What is the largest-known structure in the observable universe?

Hercules-Corona Borealis Great Wall

When was the Hercules-Corona Borealis Great Wall discovered?

November 2013

What is the Giant GRB Ring?

A ring of 9 gamma-ray bursts

Who led the discovery of the Giant GRB Ring?

<p>L.G. Balazs</p> Signup and view all the answers

What does Huge LQG refer to?

<p>Huge Large Quasar Group</p> Signup and view all the answers

What is the size of the Giant Arc?

<p>3.3 billion light years</p> Signup and view all the answers

Where is U1.11 located?

<p>In the constellations of Leo and Virgo</p> Signup and view all the answers

What is the Clowes-Campusano LQG composed of?

<p>34 quasars</p> Signup and view all the answers

What is the South Pole Wall?

<p>A massive cosmic structure formed by a giant wall of galaxies</p> Signup and view all the answers

What survey identified the BOSS Great Wall?

<p>Baryon Oscillation Spectroscopic Survey (BOSS)</p> Signup and view all the answers

Study Notes

Hercules-Corona Borealis Great Wall

  • Largest-known structure in the observable universe, approximately 10 billion light-years long.
  • Discovered in November 2013 by a team of astronomers using data from Swift Gamma-Ray Burst Mission.
  • Contains a higher concentration of gamma-ray bursts (GRBs) than the expected average.
  • Exceeds the size of the prior Huge-LQG by about two times.

Giant GRB Ring

  • Comprises a ring of 9 gamma-ray bursts (GRBs).
  • Associated with one of the largest known cosmic structures.
  • Discovered in July 2015 with data from gamma-ray and X-ray telescopes, notably the Swift Spacecraft.

Huge LQG

  • Known as the Huge Large Quasar Group, consists of 73 quasars.
  • Measures about 4 billion light-years across; initially identified as the largest known structure in the universe.

The Giant Arc

  • Discovered in June 2021, spans over 3.3 billion light-years.
  • Challenges the cosmological principle of homogeneity and isotropy in the universe.
  • Composed of galaxies, galactic clusters, gas, and dust; located 9.2 billion light-years away.

U1.11

  • A large quasar group situated in the constellations of Leo and Virgo.
  • Estimated maximum diameter is 780 Mpc and contains 38 quasars.
  • Discovered in 2011 during the Sloan Digital Sky Survey.

Clowes-Campusano LQG

  • Consists of 34 quasars and measures about 2 billion light-years across.
  • Notable large superstructure in the observable universe, found near Huge-LQG.
  • Discovered in 1991 by astronomers Roger Clowes and Luis Campusano.

Sloan Great Wall

  • A cosmic structure that is a giant wall of galaxies, forming a galaxy filament.

South Pole Wall

  • Massive structure that extends at least 1.37 billion light-years, dense in several areas.
  • Discovered in July 2020 by an international team, led by Daniel Pomarède.
  • Notable for its location; heavily veiled by galactic dust, making it previously unnoticed.

BOSS Great Wall

  • Identified using the Baryon Oscillation Spectroscopic Survey (BOSS) in early 2016.
  • Discovered by a collaborative research team from various institutions.
  • One of the largest superstructures in the observable universe.

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Explore the fascinating world of cosmic structures with this flashcard set. Learn about the Hercules-Corona Borealis Great Wall, the largest known structure in the universe, and other monumental formations. Enhance your understanding of astronomy and the vastness of space!

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