On a new map of the Milky Way, the Gia mission reveals ‘stellar earthquakes’

The phenomena seen in thousands of stars involve motions on the surface of each star. (Photo: ESA / Gaia / DPAC)

The European Space Agency (ESA) has released its third batch of data from a project trying to develop a highly complete map of the Gia mission galaxy. Finding “earthquakes” in the thousands of stars in our galaxy is one of the highlights of the revelation.

These phenomena are detected by small motions on the surface of each star and have the ability to change the shapes of the stars. “‘Star‌quakes’ teach us a lot about the stars, especially their inner workings. Gia is opening a gold mine for the ‘astrocymology’ of huge stars, “said Connie Erts, a member of the ESA mission in a statement.

Although Space Enterprise was not designed to detect these “earthquakes”, it also detected vibrations in previously rare stars. The most current theory is that no vibrations should occur in these stars, but the detection reveals exactly the opposite.

On the largest map of the Milky Way with 3D motion, the Gia mission captured details of nearly 2 billion stars. They also contain information on chemical composition, temperature, color, mass, age, and velocity (radial velocity) of stars approaching or moving away from the Earth.

The mission’s astronomers have identified the largest list of binary stars ever made, as well as specialized stellar subgroups that change luminosity over time. It is also possible to obtain data from thousands of objects in the solar system, such as asteroids, moons, and millions of galaxies and quasars outside the Milky Way.

Some of the stars identified by Gia contain heavier metals than others. Some primitive materials, however, include sun-like stars made of material enriched by previous stellar generations.

“The beautiful melting pot of our galactic stars”, compared to Alejandra Recio-Blanco from the Observatory de la C కోట్te d’Azur in France. For the expert who worked with the Gia team, this diversity was very important because it tells us the story of the Milky Way.

Much of the information from the Gia Space Observatory comes from newly released spectroscopy data, which in this technique is divided into its colors like a starlight rainbow.

“By repeatedly searching the entire sky with billions of stars, Gia will have to make discoveries that other more dedicated missions will miss,” said Timo Presti, a Gia project scientist at ESA. “It’s one of its strengths and we can not wait until the Astronomical Society researches our new data to find out more about our galaxy and its surroundings than we expected.”