A study of 300 stars showed that our solar system - special

Over the last four years of a tool attached to the telescope in the Chilean Andes - Gemini Planet Imager - 531 stare at the star in search of new planets. And now the team that worked with him, published in the Astronomical Journal initial results of the study, during which captured six of the planets and three brown dwarfs orbiting 300 stars. And to some very strange and interesting conclusions reached by scientists.

A study of 300 stars showed that our solar system - special

"Over the past twenty years, astronomers have discovered all of these solar systems, which are really different from ours," said Bruce McIntosh, professor of physics at Stanford University. "The question that we want to understand in the end, is this: Are there communities, Earth-like planets? And one way to answer it - to see how other solar systems are formed.

Unlike other methods of searching for planets, which are based on the search for signs of planets - such as the effect of its gravity on the parent star, not the planet itself - Gemini Planet Imager makes direct shots, grabbing a dim planet in the bright light of the star that is a million times brighter.

"The giant planets in our own solar system are 5-30 times more than the Earth, and the first time we explored the area around the sound like other stars," says lead author Eric Nielsen, a researcher at the Kavli Institute.

Why does our solar system - special?

Most other search methods explore the inner solar system. But the Gemini Planet Imager is particularly focused on exoplanets, which are large, young, and are far from the star around which revolve.

In our solar system giant planets are found in the outer part. But although Gemini Planet Imager is one of the most sensitive seekers planets are still objects to escape from it, and the planet that the team can see at the moment, must be twice that of Jupiter.

In the first part of the study, the researchers found less exoplanets than expected. However found exoplanets revealed something interesting: each of the six planets revolved around the big bright star, despite the fact that such planets are easier to find around faint stars. This suggests that the giant planets with a wide orbit around stars more likely to occur with large mass - at least 1, 5 times more massive than the sun. Meanwhile, the star like our own, are not often kept older brothers of Jupiter, as a small planet, which are found close to their stars during missions such as "Kepler".

"Given the fact that we and others have seen so far, our solar system is not like other solar systems," says McIntosh. "We do not have a lot of planets, packed so close to the Sun, as the other stars, and now we have preliminary evidence that we may be rare, and on the other side of the range."

Although the Jupiter-sized extrasolar planets are beyond the reach of their instruments not find even a hint of something like Jupiter among the 300 stars, it leaves open the possibility that our Jupiter - is special.

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