(Photo: downloaded from the official South Pole Wall website)
The Milky Way galaxy is centered on our star, the Sun, where planets, dust and other space objects are linked together by gravitational forces. The spiral galaxy includes up to 100 billion stars.
Missions like the European Space Agency’s Global Astrometric Interferometer for Astrophysics (Gaia) have been operating for more than six years to create an accurate three-dimensional map of the entire Milky Way. Today’s technology allows experts to observe bodies in space up to tens of billions of light years from Earth.
Observing the galaxy has been possible with missions like Gaia, NASA’s Hubble Space Telescope, Wisconsin H-Alpha Mapper (WHAM) in Chile, and many others. Astronomers strongly anticipate the launch of the James Webb space telescope into space where it “will look for the unnoticed formation of the first galaxies, as well as look inside the dust where stars and planetary systems are formed today”, according to NASA.
On July 10, cosmographers published a report in The Astrophysical Journal of a new hidden collection of galaxies found in the Milky Way called the wall of the South Pole. They discovered massive stellar assembly while cosmographers were developing new techniques to detect and map astral bodies not seen directly.
The South Pole wall measures approximately 1.4 billion light years across the entire collection of stars and planets that have remained hidden until now. We observe that the giant wall coincides with the south celestial pole of the Earth which the team compared “to the Great Wall of Sloan at half the distance” and is in front of the supercluster of Shapley.
Hidden in the Milky Way
The discovery was made by Daniel Pomarède of the Paris-Saclay University alongside R. Brent Tully and a team from the University of Hawaii. Pomarède shared: “One can wonder how such a large and not so distant structure remained unnoticed.
“This is due to its location in an area of the sky that has not been fully studied and where direct observations are hampered by prominent spots of dust and galactic clouds,” Pomarède continued. “We found it thanks to its gravitational influence, imprinted on the velocities of a sample of galaxies. ”
An obstacle to their observations on the location of the South Pole wall behind the Chamaeleon cloud complex. The star-forming region includes the dark Chamaeleon I, II and II clouds or absorption nebulae which are dense enough to keep the starlight from the new collection of galaxies hidden in the Milky Way.
Also read: Proof that stars born elsewhere suddenly merged with the Milky Way
100 million billion stars
To map what cosmographers couldn’t see, they collected data from previous surveys, measured their movement away from Earth and all surrounding gravitational forces, then created a 2D and 3D map. Their result was a colossal structure of whole galaxies grouped together totaling about 100 million billion stars.
It remains a mystery what the wall of the South Pole would look like if the dark clouds were removed in front of it or what all this special material actually contains. The best guess the team made is hundreds of thousands of galaxies full of stars and planets to discover.
Also read: NASA’s Hubble Space Telescope detects the galaxy moving away from Earth at 3 million miles per hour
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