MessageToEagle.com

First 3D Map Presents
The Large-Scale Structure Of The Universe Nine Billion Years Ago

10 August, 2013

Share this story:
Follow us:

MessageToEagle.com - First version of a 3D map of the Universe from the FastSound project has been released by an international team of scientists from Kyoto University, the University of Tokyo and the University of Oxford.

The FastSound project - surveying galaxies in the Universe over nine billion light years away - began its observations in March 2012 and will continue them into the spring of 2014.

Using the Subaru Telescope's new Fiber Multi-Object Spectrograph (FMOS), the team's 3D map includes 1,100 galaxies and shows the large-scale structure of the Universe nine billion years ago.



Click on image to enlarge

The FastSound project's 3D map of the large-scale structure of a region in the Universe about 4.7 billion years after the Big Bang. This area covers 2.5 times 3 degrees of the sky, with a radial distance spanning 12-14.5 billion light years in comoving distance or 8-9.6 billion light years in light travel distance. The colors of the galaxies indicate their star formation rate, i.e., the total mass of stars produced in a galaxy every year. The gradation in background color represents the number density of galaxies; the underlying mass distribution (which is dominated by invisible so-called "dark matter" that accounts for about 30% of the total energy in the Universe) would look like this if we could see it. The lower part of the figure shows the relative locations of the FastSound and the Sloan Digital Sky Survey (SDSS) regions, indicating that the FastSound project is mapping a more distant Universe than SDSS's 3D map of the nearby Universe. Credit: NAOJ, SDSS, CFHT


Subaru Telescope's FMOS facilitates the project's goal of surveying a large portion of the sky. FMOS is a powerful wide-field spectroscopy system that enables near-infrared spectroscopy of over 100 objects at a time; the spectrograph's location at prime focus allows an exceptionally wide field of view when combined with the light colleting power of the 8.2 m primary mirror of the telescope.

The current 3D map of 1,100 galaxies shows the large-scale structure of the Universe nine billion years ago, spanning 600 million light years along the angular direction and two billion light years in the radial direction.

The team will eventually survey a region totaling about 30 square degrees in the sky and then measure precise distances to about 5000 galaxies that are more than ten billion light years away.

Although the clustering of galaxies is not as strong as that of the present-day Universe, gravitational interaction will eventually result in clustering that grows to the current level.

The final 3D map of the distant Universe will serve a primary scientific goal of the project: to precisely measure the motion of galaxies and then measure the rate of growth of the large-scale structure as a test of Einstein's general theory of relativity.



Although scientists know that the expansion of the Universe is accelerating, they do not know why; it is one of the biggest questions in contemporary physics and astronomy.

An unknown form of energy, so-called "dark energy", appears to uniformly fill the Universe, accounting for about 70% of its mass-energy content and apparently causing its acceleration.

A comparison of the 3D map of the young Universe with the predictions of general relativity could eventually reveal the mechanism for the mysterious acceleration of the Universe.

MessageToEagle.com

See also:
Researchers Have Identified The First "Bone" Of The Milky Way

Follow MessageToEagle.com for the latest news on Facebook and Twitter !

Don't Miss Our Stories! Get Our Daily Email Newsletter

Enter your email address:


Once you have confirmed your email address, you will be subscribed to the newsletter.

Recommend this article:

Teleportation Experiments Continue - Record-Breaking Distance of 143 Kilometers Achieved!

Violent Behavior Of Our Sun - Massive 500,000 Mile Long Filament Observed

First Massive Galaxies Lit Up The Early Universe

Intense Blue Lightning On Saturn Visible From Space In Broad Daylight!

Subscribe To Our Space, Astronomy, Astrophysics, Earth and Xenology News!

Grab the latest RSS feeds right to your reader, desktop or mobile phone.


comments powered by Disqus

Subscribe to RSS headline updates from:
Powered by FeedBurner

Go to - MAIN PAGE

Copyright © MessageToEagle.com All rights reserved.
Go to - MAIN PAGE


Get our top stories
Follow MessageToEagle.com

 Subscribe in a reader

Join Us On Facebook!


Other Popular Articles

Universe:


Juno Spacecraft's Critical Mission - To Uncover The Secrets Hidden Beneath Jupiter's Mysterious Clouds

What’s Going On Out There? - NASA's RBSP Spacecraft Will Meet ‘Killer Electrons’ And Other Dangerous Phenomena

New Photos Of Saturn And Its Moon Titan - See A Striking Change Of Colors!

Beautiful and Mysterious Superbubble In The Large Magellanic Cloud Observed By Chandra

WISE Discovers Millions Of Black Holes And 1,000 Extreme Galaxies Called Hot DOGS

Dawn Spacecraft Is Heading Towards Dwarf Planet Ceres To Investigate The Formation Of Our Solar System

Lunar Paradox Problem: Moon Origin In Focus Again!

There Is Sugar In That Star! Life Building Blocks Discovered Around A Sun-Like Star

First Planetary System Orbiting Two Suns Found By Kepler

Astronomers Test Einstein In A New Regime Using Pair of Burnt-Out Stars

The Universe Will Vanish In 100 Billion Years - Says Nobel Prize Winner Brian P. Schmidt

Our Creator Is A Cosmic Computer Programmer - Says JPL Scientist

Mysterious, Huge 'Pigtail' Molecular Cloud Discovered In The Galactic Center

Astronomers See The Infant Universe's Oldest Galaxies Yet!

Star With The Secret Of Eternal Youth

Physicists Challenge Validity Of Big Bang Theory

Space-Time Crystal Computer That Can Outlive Even The Universe Itself!

Dawn Spacecraft Is Heading Towards Dwarf Planet Ceres To Investigate The Formation Of Our Solar System

New Photos Of Saturn And Its Moon Titan - See A Striking Change Of Colors!

What’s Going On Out There? - NASA's RBSP Spacecraft Will Meet ‘Killer Electrons’ And Other Dangerous Phenomena

Mysterious X-Rays From Jupiter Near The Poles

W3Counter