Friday, September 23, 2016

Hubble confirms the phenomenon mikrosoczewkowania across the planet okołopodwójną – cosmic Pulse

artist's impression of exoplanet orbiting two  stars

Thanks to the comments, which is maintained by the Space Telescope “Hubble” failed to confirm the existence of a distant planet, located around two stars. The mass of the planet leads to the emergence of the phenomenon mikrosoczewkowania gravity in which the gravitational field of the object is curved, passing near the light beams. The phenomenon was observed in 2007, so this is the first planet krążąca around the two stars confirmed the phenomenon mikrosoczewkowania gravity.

the Majority of exoplanets are still talking about in orbits around single stars. Until now it was only discovered several planets orbiting two stars. Most of them have been evaluated using the Space Telescope Kepler, which looks for planets tranzytujących on the background of the disk of its star.

the Newly discovered planet, however, is very unusual. the “This exoplanet was observed in the phenomenon of gravitational mikrosoczewkowania in 2007. Detailed analysis allowed for the opening of the third object soczewkującego, in addition to the stars and planets that had been known for nearly a decade," ” says David Bennett of NASA Goddard Space Flight Center, the lead author of development.

the Phenomenon of OGLE-2007-BLG-349 were registered during the implementation of the project OGLE (Optical Gravitational Lensing Experiment). In this project, researchers are watching the impact of small perturbations of space-time caused by the stars and planets pozasłoneczne. The very emergence of such violations was predicted by albert Einstein in his General Theory of Relativity. These small disturbances known as mikrosoczewkowanie.

however, the observations of OGLE was not able to confirm details of the event OGLE-2007-BLG-349, and in particular, the nature of the third object soczewkującego. Many other models were also able to explain obserwowaną curve brightness. Additional data collected by Space Telescope “Hubble” was it necessary that scientists have been able to define a system as a planet revolving around the double star system.

“In the framework of the project OGLE was observed more than 17 000 mikrosoczewkowania phenomena, but this is the first time such a phenomenon caused by planetary system with two Central stars,”, – says Andrey Udalski of Warsaw University, co-author of development.

Is pioneering the discovery points to a host of intriguing possibilities. At a time when the Kepler telescope can explore the planet, after a close orbits – in fact all planets orbiting binary systems, discovered the telescope, located at the lower boundary of stable orbits is a phenomenon mikrosoczewkowania allows you to explore the planet much more distant from the Central system double.

“This discovery does that we need to rethink our strategy of observations for the accretion disk in the systems of double stars,”, says Yiannis Tsapras, co-author of development with the Astronomisches Recheninstitut in Heidelberg, Germany.

Now that scientists have proven that mikrosoczewkowanie can be a method of discovering planets in planetary systems, orbiting binary systems, Hubble can play an important role in the search for this type of planets by this method.

Source: ESO

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