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?
Signup and view all the answers
What does Huge LQG refer to?
Signup and view all the answers
What is the size of the Giant Arc?
Signup and view all the answers
Where is U1.11 located?
Signup and view all the answers
What is the Clowes-Campusano LQG composed of?
Signup and view all the answers
What is the South Pole Wall?
Signup and view all the answers
What survey identified the BOSS Great Wall?
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.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
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!