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Astronomers will have to be decoded to a strange signal coming from a stranger, the 3-body star-system

A 2016 NASA image shows a variety of the brown dwarf, oribiting further and further away from the star.
(NASA)

Once or twice a day, and a strange object in the Milky way, blinking at us. Right now, astronomers think they know why.

The object is called NGTS-7, as well as to most telescopes, it appears as a single star. Researchers at the University of Warwick in England have started to watch it, because it seemed to be emitting from the torches, but upon further investigation, they found out that the starlight will dim briefly every 16.2 hours. When the astronomers zoomed in on, they realized that there are two similar stars in the system, and that’s only one of them is a dim is short in that way — to suggest that something is the dark circle at or just above the star’s surface. Now, in a paper posted to the preprint journal arXiv, and the astronomers will provide you with an explanation of A brown dwarf, is orbiting the star, in an orbit so tight that it only takes 16.2 hrs to complete.

It is very impressive that the astronomers were in a position to monitor the complex signal of the system, the handle of which is the mixed light from the brown dwarf, and the young star, originally came out, said Hugh Osborn, an astronomer at the Laboratoire d’Astrophysique de Marseille in France, who was not involved in the study. [11 Fascinating Facts About Our Milky Way Galaxy]

To make it available to researchers, which is a similar technique that can be used for the detection of extrasolar planets: to Measure how the light is submerged, if the brown dwarf is in between the star and the planet. This dip represents the output signal of the “transit” means a short one, and a partial eclipse of the star by little and little to be seen, even through a powerful telescope.

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“The detection of this system is likely to be the easy bit,” Osborne told Live Science. “Because the star is so small, and that the brown dwarf is relatively large, the transit signal is actually about 10 times larger than that of a typical exoplanet that orbits in the surveys of the night sky].”

However, as soon as you detect the transit signal, you get a sense of the whole process. This is a pity, because it’s a brown dwarf, a transit of signals to be strange. For one thing, they have a tendency to shine a light on the internal heat and the heat from the nearby star.

“In the typical brown dwarf has a temperature that is somewhere between luke-warm water, to which a black is to be displayed in front of our eyes, and have a camp fire, which would glow faintly red,” Osborn said. In the case of [the system], the brown dwarf will be heated by the central star, which implies that the dayside of the object, it would be glowing red-hot. The night side would be darker it is, however, some of this heat could be pulled around by the wind and the heat.”

Accounting for all these factors in order to determine what you are really looking for a challenge for astronomers, Osborn said.

Each and every discovery of a brown dwarf is a thrilling experience, Osborn said. The objects that are several tens of times the size of Jupiter, or with the great planets, scientists usually discover, but it is not strong enough to light up a nuclear fusionlike a star is born. Because of their large size, they should be easy to spot, passing in front of its star, Osborne said. But they are very rare, Less than 20 have ever been discovered, it is made to be in front of the star, like this one, and it is only about 1000 detected elsewhere in the milky way galaxy. In addition, astronomers have discovered thousands of exoplanets. For this reason, astronomers have to talk about is that there will be a sort of “brown dwarf desert, which, at least in the area of the space, we can clearly see.

“The fact that we have so many of them … must be because they are extremely rare, and it’s not because we’ve just missed them,” Osborn said.

This is particularly strange, even for a brown dwarf, due to its close proximity to the star, Osborne said.

It seems to be poked in her tight orbit because of the gravitational pull of the companion star in the system.

Now it is perfectly synced up with the star, the two objects revolve and rotate so that one side of the planet always faces one side of the star, as if they were connected to each other by a piece of string.

It is interesting to note, Osborne said, “that is, the orbit of the brown dwarf seems to have ‘spun up’ in the course of the stars.”

Satellites don’t typically have this effect on their host star, Osborne added.

Investigators say the two objects are synchronized in this manner, because the shadows on the star’s surface, the most likely spots seem to be rotating in the same 16.2-the-clock cycle, a number of observations. (This is more of trickiness that makes this analysis so difficult.)

After a period of time, the researchers said, the magnetic forces acting on the star, it will slow down to the brown dwarf, on the job, causing the job to be shrinking, and its transits occur more frequently. In the end, in the not-too-distant future (at least in stellar terms) to the brown dwarf, and that the job should be to fully collapse and it will fall into the star. The resulting fireworks show and a photo of a hot bowling ball is filled with a giant water balloon in super-hot plasma have to be spectacular in order to be seen by the astronomers of his life, and when it’s done.

In the meantime, Osborne said, he would like to see a the researchers to check that the two stars in the system could be locked together in their home, more jobs are created.

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Originally published on Live Science.

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