Most stars in the universe have strong magnetic field, as per a study by a team of astronomers led by the University of Sydney. The study is opposing some previous estimates which suggest magnetic fields are rare in star.
The study astronomers have hunched the new findings could reveal more about stars’ evolution. The team used Kepler mission of the National Aeronautics and Space Administration (NASA) and data collected by some previous researches to find that the stars more massive than the sun have magnetic fields about 10 million times that of our home planet which impact a star’s evolution.
As the stars’ magnetic fields are hidden within their interior, it was previously thought that the universe has only 1% stars with strong internal magnetic fields. The new study has been the first to detect strong magnetic fields of large stars, says Jim Fuller from Caltech in Pasadena. He also said, “The prevalence of magnetic fields in stars slightly more massive than the Sun was unexpected and demonstrates that magnetic fields are robust features of stars that influence their evolution and their ultimate demise”.
The new findings are based on some previous researches by the University of California and Caltech which discovered that massive stars have been using sound waves to infer strong magnetic fields. These sound waves let a star to ring like a bell.
The new study used asteroseismology, a technique which probes beneath the surface of a star, to measure these stellar oscillations.