6-427: The Clowes–Campusano LQG ( CCLQG ; also called LQG 3 and U1.28 ) is a large quasar group , consisting of 34 quasars and measuring about 2 billion light-years across. It is one of the largest known superstructures in the observable universe . It is located near the larger Huge-LQG . It was discovered by the astronomers Roger Clowes and Luis Campusano in 1991. Lying at a distance of 9.5 billion light years away,
12-433: A minimum diameter of 1.4 billion light-years , but over 4 billion light-years at its widest point. According to researcher and author, Roger Clowes, the existence of structures with the size of LQGs was believed theoretically impossible. Cosmological structures had been believed to have a size limit of approximately 1.2 billion light-years. Redshift, denoted as "z," is a fundamental concept in astrophysics used to measure
18-458: The CCLQG is a cosmic decoupling of 34 individual quasars (highly luminous active galactic nuclei powered by supermassive black holes) spanning a region roughly 2 billion light-years in length, and about 1 billion light years wide, making it one of the largest and most exotic cosmic structures known in the observable universe. It was named U1.28 because of its average redshift of 1.28, and is located in
24-636: The constellation of Leo . It was also notable because it is located in the ecliptic , the line where the Sun seems to travel in the entire year. It was 1.8 billion light-years away from the Huge-LQG , a group of 73 quasars discovered in 2012. Its proximity to the Huge-LQG has attracted the attention of scientists. First, because it was very close to the Huge-LQG, the region where the two LQG's are located are different, or "lumpy", when compared to other regions in
30-461: The largest astronomical structures in the observable universe . LQGs are thought to be precursors to the sheets, walls and filaments of galaxies found in the relatively nearby universe. On January 11, 2013, the discovery of the Huge-LQG was announced by the University of Central Lancashire , as the largest known structure in the universe by that time. It is composed of 74 quasars and has
36-464: The universe with the same size and redshift. Second, because of their close locations, it has been suggested that the two structures are really a single structure in itself, and only connected by hidden intergalactic filament; however, no such evidence has been found. Large quasar group A large quasar group ( LQG ) is a collection of quasars (a form of supermassive black hole active galactic nuclei ) that form what are thought to constitute
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