Astronomers have discovered a record-breaking distant from us a radio galaxy
Source:
An international team of astronomers has discovered the most distant radio galaxy from us. The distance to it has allowed to define the analysis of data on its redshift. It turned out that galaxy is away from us 12 billion light years. In other words, taken by telescopes radiation was emitted when the Universe was only 7% of the current. Previously, scientists believed that these objects did not exist in those ancient days. About his discovery, astronomers reported in the journal Monthly Notices of the Royal Astronomical Society.
By Themselves, the radio galaxies are relatively rare in the Universe. They have a much higher radiation compared to other galaxies. It's a huge galaxy, located in their Central supermassive black holes actively attracting dust and gas from the surrounding space. This activity leads to the release of high-energy rays capable of accelerating charged particles to almost light speed.
The Object of scientific research is called TGSS J1530+1049. It was discovered using the Giant meter radio telescope (GMRT) set in India. To determine the distance to the galaxy, a team of researchers from the Netherlands, Brazil, Italy and the UK have measured the red shift of its light waves with a telescope Gemini North on Hawaii island, as well as a Large binocular telescope in Arizona (USA). The farther away galaxies are, the faster they are moving away from us, so the light from them seems to be more red because of the Doppler shift. Thus, the faster it moves away from us a galaxy is, the greater will be its redshift.
Further observation of the object TGSS J1530+1049 using the VLA radio telescope has allowed scientists to determine its apparent size. And on this basis, taking into consideration the calculated distance, the astronomers determined the actual size of radio galaxies. It is about 11400 light years. On the basis of the conventional models, the astronomers also estimated the upper limit on the mass of the stars in this system. It was equal to about 30 billion suns.
The Previous most distant from us radio galaxy was discovered in 1999. At the time the measurement indicator of its redshift was z=5,19. Due to this, scientists found that she was at a distance of about 11 billion light years. The title of the most distant radio galaxies, she served for almost 20 years. Have discovered radio galaxies TGSS J1530+1049 redshift is z = 5,72 that tells about the distance of nearly 12 billion light-years.
The existence of this galaxy was very surprised scientists. Because this object and a supermassive black hole at the center belong to the era when you barely had the first stars came out. Therefore, the opening of such radio galaxies is considered extremely important for our understanding of the processes of formation and evolution of galaxies. The study of such objects can also shed light on the formation of black holes, which is considered responsible for the formation and growth of galaxies.
Can genes create the perfect diet for you?
Diet on genotype can be a way out for many, but it still has a lot of questions Don't know what to do to lose weight? DNA tests promise to help you with this. They will be able to develop the most individual diet, because for this they will use the m...
How many extraterrestrial civilizations can exist nearby?
If aliens exist, why don't we "hear" them? In the 12th episode of Cosmos, which aired on December 14, 1980, co-author and host Carl Sagan introduced viewers to the same equation of astronomer Frank Drake. Using it, he calculated the potential number ...
Why does the most poisonous plant in the world cause severe pain?
The pain caused to humans by the Gimpi-gympie plant can drive him crazy Many people consider Australia a very dangerous place full of poisonous creatures. And this is a perfectly correct idea, because this continent literally wants to kill everyone w...
Faith in the victory increases the amount of testosterone and attracted to the opposite sex
Everyone knows the popular expression that says that belief in success — is already 50% of success. But what if these words have something more than self-hypnosis? This is what decided to check out the experts from the Unive...
The meteor has brought to Earth a mineral which is not present on the planet. Is this possible?
People have been on Earth long enough to get a good idea of what is in our planet. Scientists have found, analyzed and classified the vast number of minerals, and we know which ones are rare and which are found in abundance. So wh...
Scientists have discovered a giant wandering planet with a powerful magnetic field
Approximately 20 light years from Earth is a very strange planetology object with a magnetic field of enormous power. It is more than 200 times bigger than Jupiter and is approximately 16-54 times higher than that of the Earth. Sc...
The inhabitants of the "happiest countries" are beginning to suffer because of technology
Small Asian country of Bhutan is considered a least developed, according to the United Nations. The inhabitants of the country do not try to develop the economy. They introduced a gross national happiness indicator. The people of ...
Scientists: Earth will still turn into the "greenhouse"
to Keep global warming within 1.5-2 degrees Celsius can be much more complex than previously thought, according to a paper published in the journal Proceedings of the National Academy of Sciences (PNAS). An international team of s...
Japanese probe "Hayabusa-2" photographed the surface of the asteroid Ryugu closeup
Japanese spacecraft "Hayabusa-2" showed the surface of the asteroid Ryugu closeup. About two weeks ago, the space probe at a distance of six kilometers, but the new images received by the camera from a distance of only 851 meters ...
The asteroid that killed the dinosaurs also helped the sharks to evolve
In the oceans of our planet are home to more than 500 species of sharks, from tiny to huge sharks-goblins and other monsters. And, the current balance of species of sharks that we see today originated after the mass extinction the...
Egyptian power: the Great pyramid of Giza concentrates electromagnetic energy
an international group of scientists applied the methods of theoretical physics to study electromagnetic response of the great pyramid on the airwaves. Scientists predicted that in the resonance conditions the pyramid can concentr...
The scientists said in any exoplanets it is best to search for life
Where and how to look for extraterrestrial life? Astronomers have discovered thousands of exoplanets and several thousand more candidates for this status. What's next? What to look for when searching for signs of extraterrestrial ...
An experimental drug helped to cope with baldness and development of gray hair
By and large, criteria such as gray hair and hair loss in most cases have no problems other than purely aesthetic. However, many people are trying by all means to avoid these changes, masking and delaying the inevitable. According...
#news high technology 254 | water on Mars and space drive on water
Every Monday in the new issue of «News high-tech» we summarize the previous week, talking about some of the most important events, the key discoveries and inventions. This time we'll talk about the first space of the eng...
X-ray technique showed a previously unseen substance near a black hole
International cooperation Japan and Sweden helped to clarify how gravity affects the shape of matter near a black hole in a binary system Cygnus X-1. Their findings, published in Nature Astronomy this month, will help scientists f...
Like cures like: food poisoning will be treated with the help of bacteria
Hard to find someone who at least once in my life felt the effects of food poisoning. However, some species can cause very severe intestinal infection, which is not limited by simple diarrhea. And sometimes in medicine practice th...
IBM Watson has issued an "unsafe and improper" recommendations for the treatment of cancer
the company's Internal documents show IBM that medical experts working with Watson, had found "numerous examples of unsafe and incorrect recommendations for treatment" using the software, according to Stat News. From the documents...
"Forgotten" immunoglobulin effectively protect from HIV
Deadly disease often require the development of new methods of treatment. However, as the saying goes, "new is well forgotten old". For example, recently a group of researchers from the Texas biomedical research Institute have dis...
Discovered the neurons responsible for consciousness
Over the past century, neurophysiology has made great progress, but the structure of most of the functions of the brain still remains a mystery. But, it is possible that one mystery related to the human nervous system become less....
The Andromeda galaxy eaten by the sister of our milky Way
the Andromeda Galaxy, our closest neighbor, it turns out, hides a very dark past. Astronomers from the University of Michigan found that about two billion years ago Andromeda swallowed the sister of our milky way. All so, our gala...
Artificial intelligence has learned to identify birds by their singing
the bird Population is rapidly declining due to deforestation, agriculture and climate change. Scientists are tracking the types, recording their screams, but even the best computer cannot reliably distinguish the signals of some ...
Why no one understands how quickly to develop artificial intelligence?
Now many of us are familiar with Moore's law, the famous principle, according to which the development of computing power follows an exponential curve, doubling in the ratio of price-quality (that is, speed per unit cost) every 18...
Gene editing with the CRISPR/Cas9 can be deadly
a Method of editing DNA CRISPR/Cas9 is considered one of the most important discoveries in modern genetics. However, the large potential of the technology hides a monstrous side effects. Figure it out, scientists were allowed exte...
(0)