[ad_1]
( The Hubble Space Telescope )
The Hubble Space Telescope took a picture of some of the oldest and most distant galaxies in the universe.
As part of the mission entitled Beyond Ultra-Deep Border Fields and Legacy Observations or BUFFALO, Hubble has focused its lenses on a massive galaxy called Abell 370 located 5 billion light-years away. Earth. The photograph also revealed many other galaxies that go far beyond Abell 370.
What Hubble saw
To take the amazing picture, Hubble used clusters of galaxies as "natural telescopes" that amplified distant galaxies and supernovas. Since these galaxies are so far away and their lights were so dim, it was difficult to photograph them and watch them without a whip.
The cosmological trick called gravitational lens allowed Hubble to see through the universe. It works by distributing matter, in this case a group of galaxies, between the observer and a distant source, by folding and manipulating light from distant background galaxies that otherwise , could not be detected with the sensitive vision of the telescope.
The feature dubbed "the dragon" is the best demonstration of gravitational lenses. Just below the center of the cluster is an extended feature composed of several duplicate images of a spiral galaxy forming an arc.
This is not the first time Hubble has used gravitational lenses to look at distant objects in the universe. In 2012, the telescope also photographed a distant galaxy 10 billion light-years away from Earth using the cosmic zoom created by a group of nearest galaxies located 5 billion light-years away.
Look far
The main mission of BUFFALO is to look very far in the creation of the current universe. The program hopes to closely examine and identify the galaxies in their first formation in the first 800 million years after the Big Bang.
BUFFALO is designed to succeed Frontier Fields, a similar project launched in 2013 and completed in 2017. BUFFALO will expand views of the six regions and their environments previously photographed by its predecessor.
"Driven by Frontier Fields observations, BUFFALO will be able to detect the most distant galaxies about ten times more efficiently than its offspring program," said the team behind BUFFALO. "The BUFFALO study will also take advantage of other space telescopes that have already observed the regions around clusters."
Hopefully the data will help scientists to learn more about the evolution of the first galaxies in the universe.
The project is led by European astronomers from the Niels Bohr Institute in Denmark and the University of Durham in the United Kingdom.
In a new observational campaign, Hubble uses 6 massive clusters as "natural telescopes" to search for amplified images of galaxies and supernovae so distant and weak that they could not be photographed without a phenomenon called gravitational lens : https: // t. co / 9usREwGHgl pic.twitter.com/2sbJp9XwYO – Hubble (@NASAHubble) September 13, 2018
See now: 30 gadgets and technical gifts for Father's Day 2018
8 2018 TECHTIMES.com All rights reserved. Do not reproduce without permission.
[ad_2]
Source link
