Large Quasar Group

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Large Quasar Groups ( LQG )- Englishforlarge quasar groups, evenlarge Quasargruppenwritten - are clusters ofquasarsto form, which are considered the largest astronomical structures in the known universe. It is believed that LQGs represent the ancestors offilaments and voidsas found in the relatively nearby universe.

First discovery

On 11 January 2013, the discovery of was U1.27 by the University of Central Lancashire announced, the largest at the time known structure in the universe. It consists of 74 quasars and has a mean diameter of 1.5 billion light years (500 Mpc ) and a maximum extent of about 4 billion light years (1200 Mpc). According to the researcher and author, Roger Clowes , it was previously assumed that the existence of such large structures in the universe is not possible and that the maximum size is 1.2 billion light years.

See also

Individual evidence

  1. ↑ Astronomy: Researchers Discover the Largest Structure in Space - World , January 12, 2013; u. a. with "Large Quasar Group"
  2. ↑ Quasar group researchers discover largest object in the universe - mirror , on January 11, 2013.
  3. ↑ RGClowes; "Large Quasar Groups - A Short Review" - The New Era of Wide Field Astronomy , ASP Conference Series, Vol. 232 .; 2001; Astronomical Society of the Pacific; ISBN 1-58381-065-X ; bibcode : 2001ASPC..232..108C
  4. ^ Largest structure in universe discovered. Fox News , January 11, 2013, accessed January 1, 2020 .
  5. ↑ Mike Wall: Largest Structure In Universe, Large Quasar Group, Challenges Cosmological Principle. In: Huffpost . January 11, 2013, accessed January 1, 2020 .
  6. ^ RG Clowes, KA Harris, S. Raghunathan, LE Campusano, IK Sochting, MJ Graham: A structure in the early Universe at z ∼ 1.3 that exceeds the homogeneity scale of the RW concordance cosmology . In: Monthly Notices of the Royal Astronomical Society . tape 429 , no. 4 , January 11, 2013, p. 2910–2916 , doi : 10.1093 / mnras / sts497 , arxiv : 1211.6256 , bibcode : 2013MNRAS.429.2910C (English).