Astronomers were able for the first time to determine the shape of the solar cover, and draw a 3D map of the limit that represents the end of the effect of the solar wind of our star in space. The Astrophysical Journal, in better understanding the environment of the solar system, and how it interacts with the space between the stars. (Los Alamos National Laboratory) in the laboratory press statement, "Physical models have developed a theory of these borders for years." "But this is the first time that we have already been able to measure it and make a three -dimensional map for it."
Theoretically, the edge of the solar cover is not considered an unknown for scientists, They actually realized its presence when crossing the wiping "Voyageer 1) and" Voyager 2 "this edge on their way towards the outer space of the solar system. Solar is its speed. These winds are launched by our star in the form of currents of the charged particles in all directions at the speed of the speed of sound. In the edge of the solar cover, the solar wind stops completely. The space between the stars contains a low density of atoms, but it is dominated by universal winds that blow between the stars that are sufficient to repel the progress of the solar wind. -Google-hk.oss-cn-hongkong.aliyuncs.com/drawing/article_results_9/2022/9/9/52A1230a75e566749c381098E 24f1922_1.jpeg "alt =" Scientists draw for the first time a three -dimensional map that defines the shape of the solar cover "Title =" Scientists draw for the first time a three -dimensional map that defines the shape of the solar cover ">
The bats inspire scientists < P> Despite the consensus of the scientists on the existence of this limit, its shape has remained a subject of discussion and a difference between them, according to the Scientific website. That separates us from it. The Fujers 1 and 2 probe was 121 and 119 astronomical units (astronomical unit equals 150 million kilometers) of the sun, respectively, when they reached this edge, and took decades to get there. It is a distance of about 4 times the distance between the sun and Neptune is the most distant planets from it. Raisefield and his team have used data from the IPX satellite (Interstellar Boundary Explorer Ibex, which is a observatory that measures the particles coming from the edge of the solar cover.
Some of these particles are what scientists call "active neutral atoms", which is Atoms generated by collisions between solar wind particles and the particle particles of the winds, and the strength of its signals depends on the strength of the solar wind at the time of collision, so the solar wind, like the wind on Earth, does not always blow the same. The edge of the solar cover somewhat in the way the bats use sound waves to draw a map of its physical surroundings. The signal of signal and the time separation can be revealed between the transmission and the reception from the shape and distance of obstacles. The main author, the APEX satellite used the same method to pick up the signal of "active neutral atoms" returning after two to 6 years, depending on the energy of these atoms and the direction of "looking" satellite via the solar cover.
and using this time difference And data from a full solar course that spanned between 2009 and 2019, the researchers managed From placing the 3D map of the solar cover. Its form, for example, is now known, and it is somewhat similar to the shape of the comet with a tail of no less than 350 astronomical units. What is recorded by the Fwigger probe 1 and 2. While the solar cover in high latitudes extend between 150 and 175 astronomical units. The map and acceleration probe is scheduled to start in the stars in 2025, when it will start when IPEX stops. The team hopes that these two tasks will provide more data to help define the shape of the solar cover more accurately.