An international team of astronomers, led by a researcher from the University of Geneva (UNIGE), has shown that the sun’s magnetic activity
"An international team of astronomers, led by a researcher from the University of Geneva (UNIGE), has shown that the sun’s magnetic activity has a significant influence on its seismic characterization, contrary to predictions in previous studies. Important data such as its size, age and chemical composition depend on it.
These results pave the way for in-depth research to better understand the nature of the magnetic activity and its impact on stellar oscillations. The study is published in the journal Astronomy & Astrophysics."
"A bright future for the study of the magnetic activity of stars
The results of this study show that the magnetic activity of stars poses a major challenge for future space missions such as PLATO, particularly in terms of characterizing the most active stars. “However, this discovery also opens many exciting research prospects,” concludes Bétrisey.
The magnetic activity of stars has a significant influence on stellar oscillations, which complicates the precise determination of fundamental properties such as the mass, radius and age of stars. For future space missions, this means that it will be necessary to develop more sophisticated methods to take account of this magnetic impact."
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