Black holes can prevent star formation in dwarf galaxies
Source:
it looks like the cloud of gas and dust that are illuminated by the light of the stars
Since not all of us are fortunate enough to study astronomy, many may not know how the galaxies formed new stars. And this, incidentally, is extremely fascinating process. As you know, in any galaxy there is a gas that is compressed by cooling, gradually turning into a star. But not just the gas falls into the galaxy due to the force of gravity that draws him inside the galactic disk, but is pushed out of the galaxy due to supernova explosions. In simple terms, galaxies like inhale and exhale the gas, whereby the formation of new stars. In a recent study published in the journal the researchers came to the conclusion that to prevent star formation in dwarf galaxies can . But why?
the Winds of black holes affect star formation
In the center of most galaxies are supermassive . The size of the galaxy in this case is irrelevant. Astronomers know that supermassive black holes can slow down or even stop the star formation. Although this relationship is observed mainly in larger galaxies, dwarf galaxies, it is poorly understood. But thanks to the results of a study published 11 October, researchers found that black holes in dwarf galaxies able to stop star formation in galaxies, like their more massive counterparts. A starburst is a strong wind, consisting of the energy of the gas and particles emitted by a black hole. Recall that these supermassive objects absorb everything around him. Thus, the wind is quite able to blow away the gas needed to form new stars. According to team scientists, this is the first time when the winds of black holes in dwarf galaxies have been studied so thoroughly. This is a quite intriguing discovery, because the astronomers did not expect that dwarf galaxies can be observed for similar processes.
Black holes turned out to be push out the gas from dwarf galaxies
contain a large amount of gas, making new stars are born. However, the winds from black holes can stop the star formation cold or warm gas to cool down and destroyed, or just pushed the gas out of galaxies by removing the elements necessary for the birth of stars. The study's lead author Christine M. Manzano-king of the University of California in a press release of the study explained that the winds emitted by the supernova explosions regulate the amount of gas in the dwarf galaxies as the dominant process. But the winds emitted by black holes, predominate over the processes of star formation in large galaxies. The researchers recorded the six winds in dwarf galaxies that come from actively feeding black holes. The winds were surprisingly fast and strong and negatively affected the ability of galaxies to form new stars. The winds are so strong that it pushes the gas outside the galaxy, like a supernova. More interesting facts and the mysteries of astronomy you will find on .
Subscribe to our to be always up to date with the latest news from the world of popular science
How to form large galaxies?
If you think that the results of the study are related to the star formation, you should not hurry with conclusions. The fact that the formation of galaxies is one of the major mysteries in astronomy. Today, we not so much know exactly how these space travelers are formed and grow. It is known that galaxies collide with each other, and sometimes space spaces found between them. These collisions lead to the emergence of larger galaxies.
Gorgeous dwarf galaxy in the constellation of the dragon in the lens of the Hubble telescope
Thus, dwarf galaxies that still exist today are the building blocks of larger galaxies, giving astronomers a glimpse into the past and understand what processes they occurred. To study the formation and evolution of galaxies, scientists create computer models. Recently was established the whole inside of the computer. However, the theoretical models do not consider the impact of black holes in dwarf galaxies. The results of recent studies indicate that models of galaxy formation needs to include black holes as important, if not dominant, factors that regulate the birth of new stars.
Recommended
The Americans on the moon: what everyone should know?
the Upcoming cosmonautics day is my favorite holiday. It marks the triumph of the human mind: in just four thousand years Homo Sapiens went from hunter-gatherers to space explorers. 12 April 1961 Soviet cosmonaut Yuri Gagarin became the first man in ...
Why are some galaxies spiral shaped?
you Know what surprised me the most? The fact that we perceive the surrounding world as it is. Animals, plants, the laws of physics and the cosmos are perceived by many people as something so mundane and boring that they invent fairies, ghosts, monst...
Astronomers were able to see the death of another star system
In the cosmic ocean drifts a lot of mysteries about the existence of which we are unaware. One of these was uncovered five years ago, when astronomers have discovered a lonely star at a distance of 570 light years from Earth, the brightness of which ...
Related News
Ancient Assyrian writings documented the strongest solar storms 2700 years ago
evidence of powerful magnetic storms has been found in ancient cuneiform tablets of the ancient Assyrians Ancient Assyria — one of the most ancient countries of our planet, which can be considered as the first world Empire i...
How to change our life if scientists will prove that we are alone in the Universe?
the Possibility that the Earth — the only inhabited place in the Universe, really exists and is often seen in the context of the hypothesis of a “unique Earth” Man has always sought to find in the Universe someone who could ...
View from the surface located near a red dwarf planet in the view of the artist As is known, in the Solar system has 8 planets, the largest of which — easily could be a star if you increase its mass by a few percent. Despite...
Perhaps it is on one of the numerous aktolun the first time we will be able to find alien life the Discovery of new exoplanets today is no longer big news. Since the discovery of the first planet outside the Solar system it's been...
Obtained new images of the mysterious comet Borisov
Comet Borisov in the lens of the Hubble telescope Recently, our Solar system was visited by a comet, originally from another part of the galaxy. In late August, the Amateur astronomer Gennady Borisov noticed the object moving acro...
Is it possible to grow plants in lunar and Martian soil?
to Grow on Mars — really. the Mankind have long been dreaming of colonization of other planets. But let's imagine that a hypothetical mission to Mars took place. The first settlers successfully landed on the surface of the r...
Pluto — the largest object in the Kuiper belt. As many of you know, Pluto until recently was considered a full-fledged planet of the Solar System. However, the opening at the beginning of the XXI century several TRANS-Neptun...
On Mars found traces of an ancient oasis
it looks like the surface of the planet Mars it may be hard to believe, but our planet and Mars is actually not so different. A recent study published in the suggests that the Red planet in the past looked more like an oasis than ...
Whether on a planet near a black hole to be life?
still from the film “interstellar”. The moment when the heroes arrived on the planet Miller According to the General theory of relativity , supermassive black hole distorts the surrounding space-time. If you watched the movie “int...
In the milky Way galaxy too much gas
Perhaps our galaxy is stealing gas from their neighbors 24 April 1990, Shuttle discovery orbited our planet the Hubble space telescope, named after astronomer Edwin Hubble. Thanks to the work of Hubble, we know how to look like qu...
NASA showed the suit in which the Americans return to the moon
a New spacesuit for landing on the moon in 2024. Since the first flight of astronauts to the moon, it was exactly 50 years, so mankind it is time to return to the surface of the natural satellite of our planet to conduct research ...
the possibility of the existence on Titan exotic life excites the minds of scientists almost immediately after the discovery of this moon of Saturn Titan — the most distant object in the Solar system, which one day could vis...
Can "planet of 9" to be a black hole?
the Mysterious planet 9 could be the unusual black hole One of the most intriguing mysteries of astronomy is understanding that it distorts the orbits of celestial objects on the edge of the Solar system. Agree, the strange orbits...
NASA engineer proposes to use a particle accelerator as a rocket engine
particle Accelerator as an engine? Why not! today interplanetary flights (not to mention travels outside our Solar system) abut one problem — low power rocket engines. Of course, continuously work to improve this component m...
Strange rules of the astronauts who will make you cancel your space journey
the Life of an astronaut in orbit every day reminds quest for survival Many of us in childhood dreamed of becoming an astronaut and see the Earth in a window of a space station or ship. Fact: the astronauts — those lucky few...
If we ever move to other planets?
the Swiss astronomer Michel Mayor believes that man will never be able to colonize new worlds Modern science fiction films often warn us about the possibility of future climate change that can lead the mankind to look for new, mor...
A former employee of NASA said that traces of life on Mars discovered back in 1970
Perhaps on Mars all this time there was life. We just looked the wrong way the leading space Agency in the world full swing preparing its Mars program to study the red Planet. Soon will start the mission Mars 2020, which aims to s...
The satellite, which can turn Neptune into a planet with rings
the size of Earth and Neptune Neptune — the furthest planet-the giant . In the atmosphere of this distant world are raging the most powerful hurricanes, which could only be registered among other known planets and their sat...
According to astrophysicists, we find the aliens for 30 years
this is a map of 4,000 exoplanets, published by NASA October 8, Tuesday, cosmologist, who was awarded the Nobel prize in physics, said he is convinced that extraterrestrial life exists and that we are likely to find evidence of th...
Found a way of turning moon dust into oxygen
Lunar soil contains a huge amount of oxygen. the Moon — for the humans: lack of atmosphere, a stable temperature on the surface of our satellite and air makes this a white-grey ball over our heads completely uninhabitable pl...
Comments (0)
This article has no comment, be the first!