They believe that this planet can exist contrary to the laws of physics.
An international team of astronomers have discovered a giant exoplanet that was much more than would have to be.
So, according to the study, the recently discovered cosmic body EPIC 211351816.01 is “bloated” exoplanet, orbiting a distant red giant.
Moreover, by hypothesis the researchers, this exoplanet may be the first example of a new class of “re-inflated” planets.
Astronomers have discovered a celestial body in the course of studying the data of the research mission “Kepler” NASA. Spectroscopic observations were connected with the measurement of radial velocities of the objects produced by the telescopes of the Observatories of Mauna Kea in Hawaii (MKO).
The study showed that the exoplanet has a radius equal 1.27 radius of Jupiter and a mass exceeding the mass of Jupiter to 10%. 8,4 every earth days the planet makes a revolution around the red giant with a radius of 4.2 solar and a mass of approximately 1.16 mass of our star.
Scientists are interested in “inflation” of the planet EPIC 211351816.01.
Explain that some giant planets increase in size when their parent star cease to exist. These so-called bloated planets were known to astronomers for nearly two decades. But it is still unclear what initiates these processes.
There are two possible theories on this subject: exoplanet “inflates” the energy of the parent star or it is due to retarded cooling of the most exoplanets.
“Bloated” worlds initially “born” very large, but then “shrink” under the influence of gravity, like the other gas giants. Then the balloon increases when the star turns into a red giant. In this case, the increase in the thickness of the atmosphere occurs due to the interaction of the stellar wind and the planet magnetosphere (occurring current warms and inflates the atmosphere).
As a result, these “re-inflated” exoplanets look to researchers like giant worlds more than I should be. In addition, they are located much farther from its star than the usual exoplanets, similar in size to Jupiter.
According to experts, EPIC 211351816.01 exoplanet is a planet that is, its “blow-up” happened a second time. Scientists believe that in this case the process of “inflating” associated with stellar radiation, rather than with a gradual cooling of the planet itself.
This is very important, as the study of “re bloated” planets can reveal the true cause of this cosmic phenomena. This can also have implications for understanding the evolution of giant planets in General.
According to the team of astronomers, working under the guidance of Samuel Grunblatt (Samuel Grunblatt) of the University of Hawaii, EPIC 211351816.01 may be the first known “re-floating” planet.
Astronomers came to the conclusion that further studies of planets around evolved stars will be needed to confirm the hypothesis “once again bloated” planets, determine the exact formation process of these objects, and probably on the basis of these data you will be able to generate the description of an entirely new class of exoplanets.
