samedi 17 décembre 2011

The discovery of 18 planet Ciara at once on giant stars.

Enables the discovery of a scientific team from the discovery of 18 planet Ciara at once revolve around giant stars that are larger than the size of the sun, the first discovery of such a large number of planets and stars revolve around the top of our sun.

Scientific Group of the California Institute for Scientific Research «Kalti_» California Institute of Technology (Caltech) discovered these planets by the sensor space «Kepler» Kepler mission and Earth-based observatories, has published a paper in the journal «Astrophysics» Astrophysical Journal in Dec. 2011 this.

Chairman of the Scientific Group «John Johnson»

John Johnson is an assistant professor in the department of astronomy at the California Institute of Technology and lead author of the paper the research commented on the discovery, saying: The Space Telescope «Kepler» able to distinguish about 1200 planets expected in our galaxy «Milky Way» but has not been analyzed thoroughly so far.

Use Astronomers Observatories other ground support for their research, such as the Observatory «cake» Keck in the islands of Hawaii, and observatories «McDonald's» McDonald and «Verborn» Fairborn in both Texas and Arizona, where they worked on a survey of about 300 star of stars giant any that are larger than the size of the sun, and used in the study technology called «oscillating stars» wobbly stars as the companion star is working to get vibration in the movement of the star in the sky as a result of the presence of the central point of attraction between the two stars, or between the star and the planets circle around him.

The difference in point of attraction the central works of a movement of winding of the star in the sky, as well as fluctuations in the glitter of the star due to the passage of companion star or planet in front of the star the main occurs a difference in the glitter of the star, a movement Altzbzbah through which experts can astronomers study the nature of the star and other celestial bodies that revolve around either a star or planet, Ceara, such as mass, size, composition and distance from the earth.

Shows the principal investigator in the study «J» that about 50 percent of the stars studied, which revolve around the planets are larger than the sun, and revolves around these stars are giants, like Jupiter in our solar system, these planetary systems help us to develop a scenario more clearly about how form planetary systems, and preliminary information about how planets form supports «nebular theory» which show that the sun and planets formed by particles of dust and gas accumulated with each other.

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