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The Laniakea supercluster of galaxies

Astronomers have mapped the cosmic watershed in which our Milky Way Galaxy is a droplet. The massive structure, which the research team dubs the Laniakea Supercluster, extends more than 500 million light-years and contains 100,000 large galaxies.

The work, published in the September 4th Nature, is the first to trace our local supercluster on such a large scale. It also provides a physical way to define what a supercluster actually is.

 




Références :
The Laniakea Supercluster of Galaxies
R. Brent Tully, Institute for Astronomy, University of Hawaii, Honolulu, Hawaii 96822, USA
Hélène Courtois, Université Claude Bernard Lyon 1, Institut de Physique Nucléaire, 69000 Lyon, France
Yehuda Hoffman, Racah Institute of Physics, Hebrew University, Jerusalem 91904, Israel
Daniel Pomarède, Institut de Recherche sur les Lois Fondamentales de l’Univers, CEA/Saclay, 91191 Gif-sur-Yvette , France
Vous êtes ici : super-continent de galaxies Laniakea - See more at: http://blogs.univ-lyon1.fr/sciencespourtous?p=1668&preview_id=1668&preview=true&preview_nonce=9875e08f55&post_format=standard#sthash.NRXJW37a.dpuf
Published on the September 10, 2014