U1.11
A large quasar group discovered in 2011.
U1.11 is a large quasar group in the constellations of Leo and Virgo. Discovered in 2011 during the Sloan Digital Sky Survey, it contains 38 quasars and has an estimated maximum diameter of 780 Mpc (2.2 billion light-years). Until the discovery of the Huge-LQG in November 2012, it was the largest known structure in the universe.
Quick Facts
- Constellations
- Leo and Virgo
- Maximum diameter
- 780 Mpc (2.2 billion light-years)
- Number of quasars
- 38
- Distance
- approximately 8.8 billion light-years
Facts from the source article.
Did You Know?
- U1.11 is located approximately 2° away from the Clowes-Campusano LQG.
- It is adjacent to the CCLQG and relatively close to U1.54, another LQG.
- The structure may suggest the evolution of a large galaxy filament.
Cosmological principle
The cosmological principle holds that matter and energy in the universe are roughly homogeneous and isotropic on large scales, with small random overdensities. Yadav et al projected maximum structural sizes around 260 h/Mpc, while others gave 70–130 h/Mpc; more recent calculations suggest values within 370 Mpc. U1.11 is twice as large as the presiding scale, and other structures exceed the scale by a factor of 8, such as the Hercules–Corona Borealis Great Wall. Together with its proximity to the Huge-LQG, CCLQG, and U1.54, this presents a contradiction to the modern cosmological model.
More in Galaxy Filaments
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