Astronomers have discovered a planetary system, ultra compact


18/10/2012

Lovers celebrate birthdays came to prefer life on objects KOI-500, which are located in the constellation of Lyra at 1 100 thousand light years. Year on such planets lasts less than one week of the earth.

However, they have also had to endure unbearable heat, because all the planets (and there are five) are located to the parent star is 12 times closer than our planet to the Sun. All of the planets, in fact, apply to the orbit of Mercury.

Darin Ragotstsin, author of a study of the University of Florida, popular among the readers of "Science. News "to study other astronomical complex phenomenon, says -" All the planets revolve around the inside of the star, which is smaller than the one that is covered by our orbit 150 times. At the same inside as raw materials, which would be enough for not one land. here with the same success can incorporate a dozen planets, and they would feel completely comfortable. "

The period for which the planets bypass star number 1, 7, 6, 4, 1, 3, 1, and 9.5 day. The proximity of the orbits of extrasolar planets periodically makes these objects a little astray, but, judging by the position, they do not run the risk of knock each other off course (in open space or in the direction of light).

The strange thing is that the four of them moved to the quadruple resonance, which earlier astronomers of any one system was observed. Orbital travel these objects are synchronized - about once in 191 days, they are in the same order.

Researchers believe that the discovered planets in such proximity to the star could not be formed. It’s too hot here. Rather, they are formed from a disc of gas and dust that once surrounded the star, and then shifted to the center of the system.

Darin says - "We believe that this migration has led to the synchronous movement of the planets in their orbits, which we are now seeing."

It should be noted, the researchers believe that the solar system and once there was a similar shift. Giants Jupiter and Saturn, formed in the suburbs, then close to the Sun, and pulled behind a mass of asteroids that bombarded Mars, Venus, Mercury, Moon and Earth 4,1-3,8 billion years ago. Unknown shifted to said inner planet.

Based on the latest research data, extreme (the parameters of the Sun) proximity to the star - for the surrounding space is not uncommon. Many extrasolar planets over the earth, much less turn in their orbits. Even so hot giants like Jupiter may be close enough to their stars.

The current planetary system, of all the scientists identified the most compact that repeatedly confirms that our system is very different from others of its "sparseness" in space. It’s not clear why.

Ragotstsin reports - "The differences may well result in different interactions of the disk of gas and dust from which the data objects are formed, and planets. However, we need to spend a whole list of studies to clarify these processes."

Scientists presented his findings at a meeting of the American Astronomical community that is dedicated to the sciences of space objects.

We emphasize that this discovery, astronomers have made thanks to the powerful, the spacecraft Kepler. This tool was launched into orbit in the spring of the year two thousand ninth. He has already registered some 2,300 potential targets. At the same time he is watching 160 thousand stars. Astronomers then check if there are any changes in their luminosity that can be called, pass objects across the disk of stars.


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