Lithium and Beyond Planet Discoveries

It quickly became an element that allows us to understand whether there are planets around the stars away from the road. We discovered this situation a few years ago in search of exoplanet outside the Solar System. This made it much easier to spot stars with planets around them:
Lithium is a very light element. So much so that it can easily swim on the surface without sinking. In addition, it has an indispensable place in today's electronic technology in terms of its usage areas.
Lithium is a "sensitive" element, and it cannot survive at temperatures above 1.5 million degrees and decay into other elements. Therefore, the lithium present in a star vanishes over time due to the high temperature of the star. But if there is a planet or planetary zone around the star, lithium can be present in the upper layers of the star, thanks to objects such as meteors, comets etc. that come from the "cool" environments and fall into the star.

For example, the reason why the Sun is rich in lithium is the asteroids, comets and some planets that it may have swallowed in the past. So if you see a lithium "spectrum" in the light of a star, know that there is a planet belt around it. If you do not come across the lithium spectrum, it is unlikely to be a planet there.
Lines of lithium (and some other elements) in the spectrum of a starlight. Spectral analysis is the only way we can understand what chemical structure stars and other celestial bodies have.
Knowing this, astronomers look for the presence of lithium by checking the star's spectrum before searching for a planet around a star. If the lithium traces of the star are more than the spectrum of light, the research begins, considering that it is worth the effort to spend on the planet.

However, as you understand, the presence of lithium alone is not a phenomenon that provides planet discovery. It just gives us a clue as to whether a star has a planet around it. More methods are required for the discovery of the planet.


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