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Two very different gas clouds in our neighboring galaxy

2013
7
Aug
vecherinka5095
viewsViews: 382         commentsComments: 0

Clear Pictureix shows two distinctive glowing gas clouds: red NGC 2014 and its blue neighbor NGC 2020 . Although they are very different, but both were formed by powerful stellar winds from a very hot young stars that their light is irradiated gas, causing it to glow brightly. &Nbsp; If you're interested, you can watch  

This image was obtainedabout using the Very Large Telescope (VLT) at the Paranal Observatory ESO in Chile - the best location in the southern hemisphere for astronomical observations. But even without the aid of a telescope VLT, look towards the southern Doradus with stars in a clear dark night shows two diffuse light spots that look like clouds inEarth's atmosphere.

At least, this could be the first impression explorer Ferdinand Magellan in time his famous voyage to the southern hemisphere in 1519. Although Magellan himself was killed in the Philippines before returning from a trip, the surviving members of his crew announced the presence of thesex cloud on his return to Europe. So these two small galaxies were later named after Magellan.

Large Magellanic Cloud

Large Magellanic Cloud actively creates new stars. Not that of her star-forming regions can be seen with the naked eye, such as the famous Tarantula Nebula. Also, there are other smaller, but no less interesting, areas, and telescopes canshow them in great detail. This image from the VLT just explores the country is incompatible couple: NGC 2014 and NGC 2020 .

NGC 2014 and < / span> NGC 2020

NGC 2014 - cloud of pink color on the right, is a shining education consisting of hydrogen. It contains clusters of hot young stars. Their hard radiation removes electrons from the atoms surrounding the hydrogen ioniziruet him from what he shines characteristic red light.

In addition, the strong radiation, massive young stars also produce strong stellar winds that fan the surrounding gas, causing it to be removed. To the left of the main cluster is visible separate bright and very thryachaya star around which you can see the beginning of the process described formation of a cavity, which is kind of like a bubble called NGC 2020 . The distinctive blue color of this mysterious object is created radiationm hot stars: this time it ionizes oxygen instead of hydrogen.

The striking difference of the colors NGC 2014 and NGC 2020 as a result of different chemical composition of the surrounding gas, and temperature stars, glowing clouds that cause. The distances between the stars and their respective gas clouds also play a role.

Large Magellanic Cloud is about 163 000 light years from our Milky Way galaxy, which is very close on a cosmic scale. This proximity makes it extremely important astronomical objecttheir research because it can be studied in much greater detail than more distant systems. It is also one of the reasons for the construction of telescopes in the southern hemisphere, which led to the creation of ESO more than 50 years ago. Despite its enormous on a human scale, the LMC contains less than one tenth of the mass of the Milky Way andcovers a total of 14 000 light-years of space compared to 100 thousand light-years for the Milky Way. Astronomers refer it to the wrong type of dwarf galaxies: its irregularity, coupled with a marked central partition of the stars raises the idea that the interaction with the Milky Way and other neighboring galaxy, the Small MagellanicCloud could cause such a chaotic form.

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