The international group of scientists has discovered on the WASP-76B’s unique planet, which is a hot jupiter, an unusual substance. The opening of ionized calcium in the atmosphere indicates a higher temperature than previously considered scientists, or about strong winds in the upper layer of the gas shell. This is reported in the article published in the Astrophysical Journal Letters magazine.
Hot Jupiters are characterized by high temperatures due to extreme intimacy to their stars. WASP-76B, found in 2016, is about 640 light years from the ground, but so close to his star spectral class F, which is a little hot sun, which makes one turnover in orbit for 1.8 Earth Day. On the day side of the planet there is evaporation of iron, which is then condensed on the night side, falling out in the form of rains.
In the new observation of astronomers, three unusual spectral lines were recorded, which correspond to the presence of ionized calcium atoms. This indicates two possibilities: either on exoplanet very strong winds in the upper layers of the atmosphere, or the temperature of the atmosphere on the exoplanet is much higher than previously believed specialists.
According to scientists, remote sensing of dozens of exoplanets, covering a wide range of masses and temperatures, allows you to get a complete picture of the true diversity of alien worlds, including fairly hot to maintain Iron rain, and with a more moderate climate.