Laniakea Supercluster

Laniakea Supercluster is a massive galaxy supercluster that was identified in 2014 by a team of astronomers led by Brent Tully from the University of Hawaii in collaboration with Helene Courtois from the University of Lyon and Yehuda Hoffman from the Hebrew University of Jerusalem. The discovery of the Laniakea Supercluster was made possible by the analysis of galaxy distributions and cosmic flows using data from the Sloan Digital Sky Survey and the 2MASS Redshift Survey. This research was also supported by the National Science Foundation and the European Southern Observatory. The Laniakea Supercluster is named after the Hawaiian language words "lani" meaning sky and "akea" meaning spacious or immeasurable, reflecting its enormous size and the fact that it was discovered by a team of astronomers from the University of Hawaii.

Introduction

The Laniakea Supercluster is a significant component of the observable universe, containing thousands of galaxy clusters and superclusters that are held together by gravity. The study of the Laniakea Supercluster has been facilitated by the use of supercomputers such as the Blue Waters supercomputer at the National Center for Supercomputing Applications and the Pleiades supercomputer at the NASA Ames Research Center. Researchers from institutions such as the California Institute of Technology, the Harvard-Smithsonian Center for Astrophysics, and the University of California, Berkeley have also contributed to the understanding of the Laniakea Supercluster. The Laniakea Supercluster is also related to other large-scale structures of the universe, such as the Shapley Supercluster and the Sloan Great Wall, which are being studied by astronomers from the European Space Agency and the National Aeronautics and Space Administration.

Discovery and Structure

The discovery of the Laniakea Supercluster was announced in a paper published in the Nature (journal) in 2014, which presented the results of a galaxy redshift survey conducted using the Mauna Kea Observatory and the Las Campanas Observatory. The survey used a technique called cosmic flow analysis to map the distribution of galaxies and galaxy clusters within the Laniakea Supercluster. The research team included astronomers from the University of Oxford, the University of Cambridge, and the Australian National University, who used data from the 2dF Galaxy Redshift Survey and the 6dF Galaxy Survey to study the structure of the Laniakea Supercluster. The Laniakea Supercluster is composed of several smaller superclusters, including the Virgo Supercluster and the Norma Supercluster, which are being studied by researchers from the Max Planck Institute for Astrophysics and the Kavli Institute for Cosmological Physics.

Characteristics

The Laniakea Supercluster is estimated to contain thousands of galaxy clusters and superclusters, with a total mass of approximately 10^17 solar masses. The Laniakea Supercluster is also characterized by its enormous size, spanning over 500 million light-years across. Researchers from the University of Chicago and the Stanford University are using simulations and observations to study the properties of the Laniakea Supercluster, including its density and temperature. The Laniakea Supercluster is also being studied in the context of cosmology and the large-scale structure of the universe, with researchers from the Perimeter Institute for Theoretical Physics and the Institute for Advanced Study working to understand its role in the evolution of the universe. The Laniakea Supercluster is related to other large-scale structures, such as the Boötes void and the Eridanus Supervoid, which are being studied by astronomers from the University of California, Los Angeles and the University of Texas at Austin.

Location and Neighborhood

The Laniakea Supercluster is located in the northern hemisphere of the sky, near the constellations of Virgo (constellation) and Coma Berenices. The Laniakea Supercluster is part of a larger network of galaxy filaments and voids that crisscross the universe. Researchers from the University of Toronto and the McGill University are using telescopes such as the Atacama Large Millimeter/submillimeter Array and the Green Bank Telescope to study the properties of the Laniakea Supercluster and its surroundings. The Laniakea Supercluster is also being studied in relation to other nearby superclusters, such as the Pisces-Cetus Supercluster Complex and the Sculptor Supercluster, which are being researched by astronomers from the University of Melbourne and the University of Sydney.

Formation and Evolution

The formation and evolution of the Laniakea Supercluster are still not well understood and are the subject of ongoing research by astronomers from the University of California, Santa Cruz and the University of Edinburgh. Simulations suggest that the Laniakea Supercluster formed through the merger of smaller galaxy clusters and superclusters over billions of years. Researchers from the University of Geneva and the ETH Zurich are using computational models to study the evolution of the Laniakea Supercluster and its role in the formation of the large-scale structure of the universe. The Laniakea Supercluster is also being studied in the context of dark matter and dark energy, with researchers from the CERN and the Fermilab working to understand the role of these mysterious components in the evolution of the universe. The study of the Laniakea Supercluster is a complex and multidisciplinary field, involving researchers from institutions such as the NASA Jet Propulsion Laboratory and the European Space Agency.

Category:Astronomy