Researchers using NASA’s TESS spacecraft have discovered a super-Earth covered in magma hotter than a thousand degrees and takes only half a day to orbit the host star.
Surface simulation of the exoplanet TOI-1075 b.
Simulation of the surface of the exoplanet TOI-1075 b. (Picture: NASA)
The planet named TOI-1075 was discovered thanks to observations from a spacecraft Transiting Exoplanet Study Satellite (TESS) from NASA. Data from this 4-year-old mission revealed that TOI-1075 b has a very hot surface with a temperature of around 1,050 degrees Celsius. This extreme condition occurs when the planet is too close to the host star, a small red-orange star located about 200 light years from Earth. But beyond the scorching environment and the extremely short orbit (14.5 hours), TOI-1075 b It is also one of the most massive exoplanets. According to NASA’s November 8 announcement, new data shows that TOI-1075 b is among the largest super-Earths ever discovered.
Super-Earths attract the attention of astronomers because they are thought to be common in the Milky Way, even though such planets do not exist in the solar system. However, if TOI-1075 b were closer to Earth and humans could visit the planet, their weight on the planet’s surface would triple because TOI-1075 b is nearly 10 times larger than Earth.
An international research team led by doctoral student Zahra Essack from the Massachusetts Institute of Technology discovered this planet using the TESS bypass method. To detect distant objects like TOI-1075 b, spacecraft scan the night sky for changes in brightness. If the star’s light dims periodically, this could reveal the existence of an exoplanet, because each time the planet passes in front of the star, it blocks starlight. The method allows TESS to observe the 5,000th potential exoplanet.
According to NASA, TOI-1075 b will help scientists adjust models of the planet formation process, thereby predicting the atmosphere of super-Earth and many other types of planets.
Article source: VnExpress
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Researchers using NASA’s TESS spacecraft have discovered a super-Earth covered in magma hotter than a thousand degrees and takes only half a day to orbit the star…