A Korean scientist analyzed the dynamics of thousands of binary stars and found deviations in their acceleration from the standard cosmological model. Instead, the values ​​obtained are consistent with modified Newtonian dynamics.

In 2023, Kyu-Hyun Chae, a professor of physics and astronomy at Sejong University in Seoul (South Korea), found in a review that: Gaia More than 26.6 thousand large binary stars located 650 light-years (200 parsecs) from us. These are systems with long orbital periods where the bodies are very far apart. Another important selection condition was the absence of obvious signs of the presence of other friends.

The study showed that the dynamics in such systems generally agree with the results of calculations based on Newton and Einstein equations, but “break down” in systems with accelerations of less than one nanometer per second. At a maximum value of less than 0.1 nanometers per second, the deviation reaches 30-40%.

This is a significant deviation, but the double star example cannot be called “pure”. To more accurately verify the calculations, astronomer Xavier Hernandez of the National Autonomous University of Mexico selected 450 objects that met stringent requirements for data accuracy and confirmed Zhe’s results. However, the sample was too small.

For new studies published in a journal Astrophysical JournalZhe collected precise data on 2,463 “statistically pure” binary stars. This is less than 10% of the original sample, as astronomers estimate that at least 50% of all potential binary systems are “clean.”

The scientist analyzed the movement in these systems using two different algorithms. Separately, he made calculations for 40 binary stars with the most accurate observation data. Both there and there, the results matched those of the previous study. When approximately two thousand astronomical units are removed and accelerated by approximately one nanometer per second, the velocity and acceleration of the object deviate from Newton’s equations.

At a distance of five to 20 thousand astronomical units and an acceleration of less than 0.1 nanometers per second, the deviation of the acceleration is 40-50%, and the deviation of the relative speed is 20%.

Such values ​​cannot be attributed to dark matter; They are not at the right scale. In the final part of the study, Zhe noted that the deviation could not be attributed to a systematic error in the instruments’ measurements. Gaia. First, it applied stringent conditions to the sample, and second, no data anomalies were observed with increased accuracy.

However, when measuring such small acceleration values, errors will inevitably occur in the data. Therefore, although the results of the new study coincide with calculations based on modified Newtonian dynamics (MOND), such conclusions should be treated with extreme skepticism. Note that, on the contrary, analysis of data from the same Gaia survey on the motion of stars in our Milky Way galaxy shows that the MOND hypothesis is incorrect.