Strange behavior in the galaxy cluster

Abell 520 have shown that the behavior of dark matter may not be so naive. Original observations found that the kernel was a banker in dark matter and hot gas, but did not contain luminous galaxies, which normally would be in the same position as the dark matter. The X-ray Observatory NASA's Chandra detected the hot gas. Astronomers used the telescope Canada-France-Hawaii and Subaru, on the summit of Mauna Kea,

Dark Matter

Dark matter is assumed to be the "adhesive" that holds significance to galaxies. The mysterious, invisible substance is made of the same type of material forming the star, planet and the person. The astronomer know little about dark matter, but has the biggest piece of the universe's mass. Have deduced the existence of dark matter by observing its gravitational influence on ghostly ordinary matter. One way to study dark matter and analyze what impacts between clusters of galaxies, the largest structure of the  universe. Cluster colliding galaxy, astronomers expect to accompany these dark matter. The intergalactic gas cloud, however, impact a cons others, delayed braking and after impact.

This theory was supported by the observations in visible light and X-rays of a colossal collision between two galaxy clusters, known as the Bullet Cluster, and other colliding clusters, including one known as "The Perry cluster" as described recently in the work of another team led by astronomer at UC Davis.

supermassive black hole sucking matter observation

As explained by another author of the research, an astronomer at the University of Michigan, Marta Volonteri, "We had reason to expect that black holes exist in many of the early galaxies, but so far they had escaped our search." In fact, it was anticipated that a population of black holes "baby" existed in the early universe, but this population had not been observed so far. 

 The main difficulty in studying black holes is that they are almost all surrounded by dense clouds of gas and dust, so that optical telescopes can’t detect them. However, the X-ray light high energy it can penetrate these clouds, and allow to study what they hide.

Recreation of a black hole

The Black hole are regions of space that concentrate a large amount of mass in its interior and a high density, which generates a gravitational field capable of attracting any particulate material. Even the photons (which are the particles that make up light) escape black holes. 

So far, astronomers have managed to look even further away in space and time (in astronomy, the greater the distance studied, the data correspond to an older universe) to analyze these regions through the telescopes powerful. However, the detection of giant black holes, hidden in the centers of galaxies, they had resisted. 

Now a team of specialists from the University of Michigan, United States, has managed to find the first direct evidence that these black holes were common in the "early universe" initial stage of the universe that followed the Big Bang.

Electromagnetic black hole

In the case of artificial black hole, not the severity needed to achieve the effect absorbent. And all thanks to artificial materials that are unusual electromagnetic properties resulting from its own structure and not its composition. King Chang and Tie Jun Cui, the State Key Laboratory of Millimeter Waves, from Nanjing University in China, designed and manufactured the artificial black hole, officially named unidirectional electromagnetic absorbed met materials using 60 strips,

The flow of black hole radiation prevents

An international team of scientists, with Spanish participation, has quantified the relationship between star formation rate and the power generated by black holes in centers of galaxies. The study, published this week in the journal Nature, comes a time when the flow of black hole radiation prevents the formation of more stars.The blue dots correspond to active galaxies, emitting X-rays detected from the Herschel Space Observatory of ESA. Image: ESA / NASA / CXCIn the center of large galaxies is usually a black hole and its presence influences the stars who live around them. Now an international team of research involving the Canary Islands Astrophysics Institute (IAC) and other Spanish-described in Nature the physical relationship between them and the rate of star formation around the so-called 'active galactic nuclei' (AGN, for its acronym in English). 

"The relationship between these two factors suspected for years, but in this work we have clearly identified for the first time," said Dr. Antonio SINC Cava.One of the most energetic phenomena in the universe is the growth of a black hole. In the center of the galaxy emits radiation that dominates the observable generated by stars at almost any wavelength. For measuring the star formation, scientists have analyzed the sky in wavelength sub-millimeter from the Herschel Space Observatory of the European Space Agency.

black hole

One space observatory captures the perseverance of a star into a black hole. A team of researchers has found a black hole at the moment which a possible thanks to the Swift space observatory for NASA. 

"Until now, this is a unique event. Although it has long been expected that such phenomena should occur, the glow it emits is a surprise.  A researcher at Pennsylvania State University and coauthor of the published the latest issue of the journal Nature.One space observatory captures the perseverance of a star into a black hole.

Scientists have determined that the black hole is at the center of a galaxy at a distance such that the light of this phenomenon took about 4 billion years to reach us. 

Black holes are common in the center of galaxies. The Milky Way is home to one of about 2 million times the mass of our Sun Its powerful gravitational fields create strong gradients that can destroy the stars who spend many millions of miles of it and produce a flash of ultraviolet light and X rays . 

"It's what we think happened to the star absorbed in this case. The result of this process may have noticed on several occasions, but so far never been seen beginning.