The Exoplanet giant, the iron in the rain
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The distant Planet is called WASP-76b is located approximately 390 light-years away from earth. Now, researchers have designed scenarios for the atmosphere of the huge, 2400 degrees, the hot-exoplanets – to-read, fascinating.
Fthe researchers have an ultra, a giant hot-watching on the planet, where you’re concerned about iron rain. On the Dayside of the most extreme exoplanets, at a temperature of more than 2400 degrees Fahrenheit, which is sufficient to vaporize the metal, such as the European southern Observatory (ESO), in Garching, Germany, said. Strong winds to transport the iron to steam, and then to the cooler night side of the planet, where it condenses into tiny droplets of Iron.
The researchers used their observations from the Very Large Telescope (VLT) – ESO in Chile. “You could say that this is the planet on the night of the rain, it’s just that it’s raining iron,” said David Ehrenreich, University of Geneva, switzerland. He has conducted a study of unusual exoplanet, which has now been published in the journal “Nature”.
The distant Planet is called WASP-76b, and is about 390 light-years from earth in the constellation of pisces. The strange phenomenon of the iron and the rain is going to come back to the fact that the Planet and its parent star, turning one page at a time, that is, the day of, on the side of it. On the one side, the cold of the night, on the contrary, he remains in eternal darkness.
Due to the extreme temperature difference may cause the strong winds
Thus, the WASP-76b, – as the moon in its orbit around the earth by the tidal forces caused by the so-called “synchronous Rotation”: The Rotation about its axis takes as long as a circum-navigation of the city.
In its day the hand of the ultra-hot celestial body of its mother star gets 1000 times more radiation than the earth is from the sun, scientists report. WASP-76b, and therefore, it is so hot that the molecules are divided into atoms, and metals such as iron, in the atmosphere and evaporate.
At the same time, the extreme temperature is causing the difference between the day and the night on the side of the prevailing winds, which carry the iron to the steam from the extremely hot day side to the cool of the evening, as temperatures will fall to around 1500 degrees Celsius. In addition to this, the WASP-76b, a new study shows that it is not only a special day-you have night-time temperatures, but also to a pronounced day-night chemist.
On the Morning of the iron remains in the out-of-steam
Because it is the Instrument of the coffee shop at the ESO VLT in the Atacama desert in Chile, the astronomers, in the case of the WASP has been identified 76b, for the first time, the chemical changes into an extremely hot gas-giant planet: they have found a strong signature of iron in the steam on the night out of the zone, that separates the day from the night side of the planet.
“Surprisingly, we are not able to see your steam iron, however, in the Morning,” said Ehrenreich. The reason for this is that “it rains on the night side of the extreme-exoplanet-iron”.
“The observations show that the atmosphere of the hot day-side of WASP-76b and a steam iron is abundant,” added Maria Rosa Zapatero Osorio, a physicist from the center for astrobiology in Madrid, and the Chairman of the “coffee lounge”-the science team. “For a small fraction of this iron is listed, due to the Rotation of the earth and the atmosphere, the winds on the night side. Then, the iron is too cold, environment, condenses and rains down.”