Since 1995, thousands of exoplanets have been discovered. beyond the edges of our solar system, among them lava planets, are considered “the most extreme”.
What is lava planet?
A news release released by McGill University this week describes the lava planets as “fiery worlds that revolve around their host star that some regions may be oceans of hot lava. run.”;
The publication publishes new research results by scientists from McGill University, York University and the Indian Institute of Scientific Education, who discovered the atmosphere and the weather cycle of one of the ” The latest “even more exotic lava planet -” has volatility and hail, supersonic winds that rage more than 3,106 miles per hour, and an ocean of magma more than 62 miles deep “.
In the study, published in the “Royal Society of Astronomical Society Monthly Report”, scientists used computer simulation to predict conditions on K2-141b, “an oversized planet. Earth with its surface, ocean, and atmosphere are all made up of the same composition: rocks, ”the statement said.
“This study is the first to predict weather conditions on K2-141b that can be detected hundreds of light years by using next-generation telescopes like the James Webb Space Telescope. ”, Lead author Giang Nguyen, a graduate student at York University, said in the news.
Most K2-141b has to deal with endless daylight.
Unlike the illuminated hemisphere on Earth, the release says the team discovered when analyzing the K2-141b’s illumination pattern that about two-thirds of the exoplanets face daylight. permanently, since the orbit is very close to its star, this keeps the exoplanet “gravity locked in place,” – meaning that the crest is always facing the star.
What about the “night” side of it?
Unlike its “daytime” side – estimated at around 5,432 degrees Fahrenheit, hot enough to melt and evaporate the rock, creating a thin atmosphere in some areas – the “never ending” side at night experiencing chilly temperatures below -328 degrees Fahrenheit, the release said.
“Our discovery likely means that the atmosphere extends a little beyond the magma coast, making it easier to detect with a space telescope,” said Nicolas Cowan, professor at the Department of Earth & Action. at McGill University, said in the newsletter. liberate, release, free.
Think of Earth’s water cycle – with only rocks
Just like Earth’s water cycle, where water evaporates into the atmosphere, condenses and falls back as rain, the slightly rocky atmosphere – sodium, silicon monoxide and silicon dioxide – is produced by extreme temperatures. high above K2-141b, undergoing rainfall, the study was found.
Unlike Earth, where rain flows back into the oceans and the water cycle repeats, the study found that on K2-141b, the supersonic wind swept away mineral vapor formed by evaporating rocks, reaching a cold night surface. price “and rock” rained “back down into the magma ocean.” Then those currents flow again towards the hot day of K2-141b, repeating the cycle.
The scientists explain that the K2-141b cycle is not as stable as the one on Earth, because the return flow of the magma ocean towards the daytime is slow, the statement said. Scientists predict that as a result, over time, the mineral composition of the exoplanets will change – “eventually changing the surface and atmosphere of K2-141b,” according to the University statement. McGill.
The next step is to verify their predictions, the scientists said. With existing data from the Spitzer Space Telescope, scientists say they should have a first look at the exoplanet’s day and night side temperatures. The release of the James Webb Space Telescope in 2021 will allow them to verify if the atmosphere is working as they had predicted, the statement said.