quinta-feira, 14 de setembro de 2017

Discovered infernal planet with sky of 'titanium'

O exoplaneta WASP-18b é parecido com o WASP-19b do grupo dos assim chamados júpiteres quentes

European astronomers have discovered a completely extraordinary exoplanet because its atmosphere has clouds hanging.

The clouds are composed of titanium oxide - most potent greenhouse gas that is able to heat its high layers to infernal temperatures.

"The presence of titanium oxide in the atmosphere of the WASP-19b affects absolutely the temperature and movement of airflows in it," said Ryan MacDonald of the University of Cambridge (UK) in an article in the journal Nature.

Much has been discovered in the study of the so-called hot Jupiters - larger, more obsolete extrasolar planets. However, the temperatures of their atmospheres are really hellish. To get a sense, it's about 725 to 2,225 degrees Celsius.



In the WASP-19b exoplanet, the current temperature exceeds 2,000 degrees, a year lasts 19 hours and the sky is made of titanium

In addition, astronomers have discovered in the heavens of these planets exotic clouds of lead, glass, and showers of precious stones.

According to the authors of the article, scientists had long suspected that such hot jupiteres, in addition to the high temperatures of their atmosphere, had an even hotter stratosphere.

According to MacDonald, one more type of exoplanet has recently been found: warmer on the outside and colder on the inside, similar to the Earth's stratosphere. Thus, scientists have launched the theory that the atmosphere of the "hot jupiter" can be heated by some extremely strong greenhouse effect.

When analyzing the chemical composition of WASP-19b, it was revealed that it is a very exotic and very hot planet, whose temperature reaches 1,726 degrees Celsius.

The analysis carried out by the team of scientists proves the ability to observe other distant planets and even to analyze their chemical composition through space telescopes installed on Earth. Another step was taken in the search for habitable planets, it is worth mentioning.

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