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Most Massive Galaxy Cluster of Early Universe Discovered

Most Massive Galaxy Cluster of Early Universe Discovered

May 28, 2011 - An infrared/optical representative-color picture of a substantial galaxy cluster positioned 7 billion light-years from Earth. This cluster weighs as a lot as 800 trillion suns. Galaxies with "old" stellar populations, like modern-day-day ellipticals, are circled in yellow galaxies with "youthful" stellar populations, like modern day-day spirals, are circled in blue. Photographs taken with the Infrared Array Camera on the Spitzer Space Telescope and the Mosaic-II digicam on the Blanco 4-meter telescope at the Cerro Tololo Inter-American Observatory.

The most substantial conglomeration of galaxies actually noticed in the early universe has been located, astronomers say.

This behemoth galaxy cluster includes about 800 trillion suns packed inside of hundreds of galaxies. And it is not even completed developing.

The newfound cluster, called SPT-CL J0546-5345, is about 7 billion light-years from Earth, which means that its light has taken that lengthy to get to us. Thus, astronomers are viewing this clump as it was 7 billion years ago.

By now, it most likely will have quadrupled in size, researchers stated. The universe is about 13.7 billion years aged. [Picture of the new galaxy cluster]

"This galaxy cluster wins the heavyweight title," astronomer Mark Brodwin of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass., explained in a assertion. "It really is amongst the most massive clusters actually found at this distance."

Even though there are some heavier clusters in the close to universe, if we could see this cluster as it is today, it would probable rank amid the most enormous clusters of all, the researchers said.

Brodwin and colleagues documented the discovery in a current edition of the Astrophysical Journal.

The discovery could assist researchers piece jointly the early history of our universe, as effectively as how peculiar stuff known as darkish energy played a role.

( via space.com )


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