Researchers discover an exoplanet that should have disappeared

A team of researchers has found a new exoplanet that orbits in a system of two red giant stars and that by its distance should have disappeared.

Is it possible that there are planets with characteristics similar to Earth? In our solar system or in another not yet discovered? The search for exoplanets, that is, planets that orbit a sun different from ours, began in 1992.

Since then, its search is part of scientific research and, according to the data, until October of this year 3,063 planetary systems have been discovered that integrate a total of 4,122 planetary masses.

An analysis with NASA’s TESS satellite

In fact, just a few months ago, the National Aeronautics and Space Administration (better known as NASA) discovered three new exoplanets with the possibility of harboring life thanks to the ‘TESS’ satellite launched into space in 2018.

Now, we have just learned that a team of researchers from the Institute of Astrophysics and Space Sciences of Portugal has found a new exoplanet that orbits in a system of two red giant stars. The big question lies in how it is possible that he is still there, since being so close to his star should have disappeared.

This research, published in the Astrophysical Journal, has been made possible by NASA’s ‘TESS’ satellite that analyzes the inside of the stars.

One of the members of the Portuguese institute assures that «the observations of this satellite are precise enough to allow to measure the soft pulsations on the surface of the stars. These two quite evolved stars also house planets, providing the ideal test bed for studies of the evolution of planetary systems.

Cármenes

A scientific dilemma

This new analysis can verify the hypothesis that “stellar astrophysics and exoplanteria are linked to each other,” since the exoplanet should have been “swallowed” by the star to be so close but seems to have survived.

“The solution to this scientific dilemma is hidden in the simple fact that stars and their planets not only form, but also evolve together. In this particular case, the planet managed to avoid being devoured, ”the researchers add.

Knowing all the perspectives of the universe and the origin of exoplanets that orbit stars other than ours has always been a great object of scientific interest. In fact, this year the Nobel Prize in Physics went to Michel Mayor and Didier Queloz for discovering an exoplanet orbiting a solar-type star in 1995.

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