Researchers have identified the largest and most denser supernatals known so far; the planet is 100 light-years away, the Pisces star of GJ 9827 stars. Discovering can help astronomers better understand the process of developing such planets.
Super Earth is an exoplanet (planetary outside the solar system) with a mass greater than Earth but lighter than the smallest solar planets of the Solar System (with a mass of about 15 earth masses), and their radiant radiation is received so that much of the gas content of their atmosphere can be evaporated for a foreseeable time so that they do not become gas guns.
GJ 9827 stars have three planets discovered by NASA’s Kepler / K2 mission. All three planets are slightly larger than Earth. This is the size that, according to the Kepler mission research, is the most common in the galaxy.
Surprisingly, however, there is no such planet in the Solar System. This made the scientists curious: they were interested in the underlying circumstances that evolve and evolve, “writes the Science Daily Science Advisory Portal.
In determining a planet’s history, it is crucial to define its composition. An important factor is whether these supernatures are rocky like Earth or have solid nucleus surrounded by a large, gas-filled atmosphere.
To understand what an exoplanet stands for, scientists have to determine the mass and radius of the celestial body, so they can determine their density.
When designing planets in this way, astronomers found that planets whose radius is larger than 1.7 times the Earth’s radius have a gas full shell like Neptune, while those whose radius is smaller are rocky, like Earth.
Some researchers say the difference is caused by photo evaporation. This is the process in which a planet loses part (or whole) of its atmosphere due to high energy photons and other electromagnetic radiation from its central star. However, further information is needed to support the theory.
The three planets of GJ 9827 are unique because they are located on the borderline between rocky supernatures and gaseous planets on the basis of their size.
Researchers led by the Carnegie Scientific Research Institute, Johanna Teske, had the right information at their disposal since they had been monitoring the bright GJ 9827 star since 2010 with Planet Finding Spectrograph (PFS).
Their observations show that the planet b is approximately eight times larger than Earth, making it the largest and most dense super-terrain that has been discovered so far. The other two (c and d) planets are about 2.5 times as much as four times as Earth, though the latter two definitions are uncertain for the time being.
Based on this information, experts assume that planet d has a significant volatile envelope, but the question remains whether or not the planet c has such a cap. Scientists believe that about 50 percent of the planet b is iron.
Researchers have explained that further observations are needed to determine the composition of the three planets. But it seems that these are the best candidates to test whether the theory of supernatural development and development is correct.
Source: MTI / Image: propeller.hu /