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    Astronomers find curious signal on giant exoplanet where it rains iron

    The artist’s impression shows that Hot Jupiter is wonderfully orbiting near the parent star.

    ESO / L.Karsada

    If you haven’t heard of WASP-76b, I’m sorry, but I missed it. Last year, astronomers revealed that “Hot Jupiter,” about 640 light-years from Earth, has a strange night habit.Every night on earth Iron falls.. Yes, the ones used to build our skyscrapers and apartments literally come down from the sky with WASP-76b.

    The reason for the iron rain is the intense heat. Exoplanets are neatly anchored to their parent star. In other words, exoplanets can only see one side of their scorching hot companions, and their faces are constantly burning. At the beginning of 2020, researchers estimated that the Earth would probably reach about 3,800 degrees Fahrenheit (or about 2,100 degrees Celsius), enough to vaporize metals such as iron.

    However, for those considering migrating to WASP-76b, the estimate may have been a bit low.

    A new study published in the Astrophysical Journal Letters on September 28 examined planets from Earth using the Hawaiian Gemini Telescope.Through a technique known as spectroscopy that allows scientists to detect elements based on their characteristic light characteristics, researchers analyze the upper atmosphere of WASP-76b, which, unexpectedly, Ionized calcium..

    Ernst de Mooy, an astrophysicist and co-author of the study at Queen’s University Belfast, said:

    The planets are so far away that it is currently not possible to know exactly what is causing the calcium abundance. No telescope is powerful enough to visualize what’s happening on WASP-76b, but new information helps astronomers figure out exactly what’s happening in a world 640 light-years away. Start to help.

    Previous research Ionized calcium was investigated on two other giant hot exoplanets known as KELT-9b and WASP-33b. The researchers pointed out that these ultra-high temperature Jupiter models did not match the calcium signals they were seeing, suggesting that an unknown process could bring calcium higher into the atmosphere. bottom. The new study is consistent with that study and may help astronomers study the atmospheric escape of gases and elements into space. This happens much faster if you are right next to the host star and the temperature is high enough to vaporize the iron.

    This result forms part of an atmospheric survey of an exoplanet known as ExoGemS using the Gemini Observatory in Hawaii. The program uses the same technique on other exoplanets and explains their diversity in more detail. The curious calcium of WASP-76b provides information for the next series of analysis of exoplanets.

    “We are investigating the atmospheric diversity of exoplanets and observing large samples of exoplanets at varying masses and temperatures to help us better understand the underlying processes. “We are planning,” said de Mooij.

    Astronomers find curious signal on giant exoplanet where it rains iron Source link Astronomers find curious signal on giant exoplanet where it rains iron

    The post Astronomers find curious signal on giant exoplanet where it rains iron appeared first on California News Times.

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