The "child" age of the stars was underestimated: it found out how it affected their future

The "child" age of the stars was underestimated: it found out how it affected their future

Thomas Steindle of the Astrophysics and Particle Physics Department of the University of Innsbruck has shown that the "children" of the stars affect their biography much more than previously thought. The study is published in Nature Communications.

The "Child Age" of the stars is characterized by a phase in which their nuclei do not yet react to the transformation of hydrogen into helium. This stage is also known as the pre-principal sequence. After ignition, they become adults and become stars of the main sequence.

"To date, star research has focused mainly on adult lights such as the Sun," explains Thomas Steindle, the leading author of the study. "Even if it sounds illogical at first sight, so far little attention has been paid to the evolution of the pre-primary sequence, because this phase is very turbulence and complex to model. Only technological advances in recent years allow us to study the infantity of the stars — and thus understand when a star begins to turn hydrogen into helium."

In a new study, scientists present a model that can be used for a realistic representation of the earliest stages of a star's life long before they become adults. It is based on a program of star evolution with open source MESA .

Inspired by the report of astronomer Edward Vorobiev of the University of Vienna at a meeting in 2019, Thomas Steindle spent several months improving the method of using this code of star evolution to recreate the chaotic phase of early star formation and then predict their specific fluctuations.

At this stage, scientists have learned that the children's development phase of the stars is "very violent" having an impact on the future pulse of the star. "It sounds very simple, but we couldn't prove it," scientists write. According to classical theory, the time before the stars "burning" just doesn't matter and is much more calm. It turns out it doesn't correspond to reality.