Astronomers have, for the rain made of liquid metal, in a hot gas giant, according to the Exoplanet: it’s raining iron, scinexx


Hell, in the shower: an area of approximately 640 light-years away, exoplanet rain in the evening, the cast iron of the heaven, and as the notes suggest. The gas giant WASP-76b, and therefore, it is your day, you are so hot that even the metal will evaporate. Due to the strong wind, the iron, the steam on the one side, the cold of the night, where it becomes a liquid and falls as rain. However, on the night of his rule, on this exoplanet is still a hell of a 1,500-degree angle.

Many of the so far discovered exoplanets are called ” hot Jupitern. These gas giants orbiting their stars so closely that they are heated up to the 4,300 degree – it’s not nearly as hot as some stars. Thus, the unusual chemistry of these exoplanets is that Some of them have been produced rubies and sapphires, the other has one blue and acid atmosphere, or the “snow” of the UV-protective molecules.

Hot nights and even hotter Dayside

Now, astronomers have found the David Ehrenreich, University of Geneva, switzerland, one of the most “extremist”. It is approximately 640 light-years away from the gas giant, WASP-76b, hot from a distance. It is in the orbit of its hot parent star, much closer, for one round, and he had only 1.8 days. Well, it’s warm on the planet In their day and, on the side, and to rule and reign in the hell-fire to 2400 degrees. In this heat, most of the molecules break down and evaporate into its atomic components, and even metal.

However, the WASP-76b has an additional feature: It will return to its star, always on the same page – as soon as the moon is from the earth. So, it is on one side of the planet that is always day, in the evening. Normally, in such a way that it increases the Temperature contrast between the two sides. The night-side of WASP-76b, and therefore, it is “only” in a 1,500-degree hot water.

Up until the iron gives out

What it does mean, however, that the chemical constituents of the atmosphere, of the planets, and it was not well-known. Therefore, Ehrenreich and her Team have taken closer under the magnifying glass. They took full advantage of the high coffee the instrument at the Very Large Telescope of the European southern Observatory (ESO) in Chile. So you recorded during the transit of a planet in front of its star, the light that fell on the day – and night-side atmosphere. On the basis of the absorption lines, they might be able to close it back up, what are the elements in the Form of deposits on the planet at the event.

The result: “The observations show that the atmosphere of the hot day-side of WASP-76b steam iron is available in Abundance,” said co-author Maria Osorio of the center for astrobiology in Madrid, spain. On the night side and in the vicinity of the dusk-line, this is the iron that is missing a signature, though. This is an asymmetric signature and indicates that there are chemical differences between the two planets, for pages.

In the evening, it’s raining, liquid metal

At the same time, it raises the question of where the iron and the steam disappears into the night. It’s an indication of researchers from the subtle changes in the received spectrum of light to the world. The slight blue shift suggests that it is in the day-and-night-of-out-of-WASP-76b high winds. They carry the iron to the steam from the hot side to the cold of the night. The result: “A piece of iron, is listed due to the Rotation of the earth and the atmosphere, the winds on the night side,” said Park.

With the colder temperatures, please make sure that the iron and the steam will condense on the iron in the liquid state. WASP-76b, could be to have the droplets, and therefore, in the evening, from the side, the clouds are made of Iron, in liquid form. In the course of the evening, however, each of these drops of metal are too heavy to stay on the edge of it in the rain. In the evenings, and a rain of iron, to fall on this exoplanet. The nature, 2020; doi: 10.1038/s41586-020-2107-1)

Source: ESO