The Sun is a relatively well-known star because it is close to us. However, it turns out that the central object of our system may be smaller than previously thought. This statement was made by astrophysicists Masao Takata of the University of Tokyo and Douglas Goff of the University of Cambridge.
The astrophysicists’ new research focused on sound waves generated and trapped in the hot plasma inside the Sun. These modes are called “pressure” or “p-modes”, and scientists say this could provide a “more robust” picture of our star’s interior. Analyzes by scientists have shown that the radius of the object is slightly smaller compared to previous knowledge. How much does it cost?
The range of variation Only hundreds of percent. That is: it is very small. The discovery is currently being evaluated, and the changes in the measurement methodology proposed by the two astrophysicists could have a further impact on the study of the Sun, but also of other stars.
It is worth noting that the Sun is currently very close to reaching the maximum of its own cycle, which lasts about 11 years. This means more activity in the form of sunspots, which can be a source of material that is ejected into space. Its contact with the Earth leads to the formation of the aurora borealis, but it can also lead to negative phenomena. For example, in the form of geomagnetic storms that can cause damage to power lines.
It is worth noting that the Sun has been closely studied for several years using two very advanced spacecraft. here they are Parker Solar Probe and Solar Orbiter. The first of these is the fastest such device ever created by mankind. In the final phase of the mission, its speed will reach about 700 thousand. how many hours.
Both probes have specialized instruments that have so far provided us with a wealth of valuable information about our star. Among other things, we were able to: explore the solar wind in more detail and more.
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France press agency
2023-11-12 11:25:55
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