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Spanish to English translation
Magnetic bubbles protect the Solar System
(NASA video at the source)
The Voyager spacecraft found that the Sun's magnetic field generated by the foam as a result of rotation of the star
CONTRAST. The old and the new vision of the limits of the heliosphere. On the right, including magnetic bubbles foam (Photo: NASA Special)
Thursday June 9, 2011
Renata S?nchez | The Universal
22:00
The Solar System in the farthest zone contains soap bubbles and turbulent magnetic particles interacting with other galaxies that enter our system determine how to interact with the rest of the universe, revealed observations probe Voyager space agency Administration (NASA).
Scientists used a computer model to analyze data from the probe has reached the farthest extent of the system in the history of Earth's space race and found that the Sun's magnetic field is formed by 160 million miles of bubbles.
The bubbles are created when magnetic field lines are broken and scattered field are reorganized in this way. Each bubble has a length of 100 million miles (160 million 934 thousand 400 kilometers), scientists described in the scientific journal Astrophysical Journal .
Like Earth, our Sun has a magnetic field at its poles. Field lines extend outward by the solar wind, expanding the charged particles from the star towards the end of the Milky Way.
Voyager is 14 billion miles from Earth and is in a border area of the system. In that area the solar wind and magnetic field are affected by the material which in turn expelled other stars.
"The sun's magnetic field expands along the edge of the Solar System that the rotations of solar magnetic field that causes it to twist and wrinkle, similar to a ballerina skirt. In the far reaches of the Sun, where Voyager are the folds of the skirt are packed, "said Merav Opher astronomer at Boston University and author of the article published in the Journal.
When the magnetic field is so compact, the magnetic lines intersect and reconnect, the reconnection magnetic energy is just as solar flares. The compact fold reorganize themselves, sometimes explosively, so they create magnetic bubbles foam.
The researchers named this region as "the heliosheath" which is the boundary between the Solar System and the rest of the Milky Way, which thousands of objects and body tries to enter, but face a barrier violent magnetic bubbles.
The relevance of this finding relates to the importance of understanding the structure of the solar magnetic field, as this would allow scientists to explain how galactic cosmic rays entering our solar system interact and influence how the Sun and stars with the rest of the galaxy.
"We continue trying to understand the implications of the findings," said physicist Jim Drake of the University of Maryland and a researcher of the Voyager team.
The theory was argued before learning of the possible existence of bubbles was that external bodies are hampered by the existence of cosmic rays on the edge of the Solar System.
"The magnetic bubbles appear as our first counter-argument against cosmic rays. We have not determined whether this is a good thing or not," said Opher.
On the one hand, the bubbles could be seen as a very porous shield that would allow many cosmic rays enter our system. But on the other hand, cosmic rays could be trapped inside the bubbles which would be a much more powerful shield.
Scientists will have to wait for more data from the Voyager mission consists of two twin probes that were launched in 1977 with the aim of crossing the border interstellar space.
Spanish to English translation
Magnetic bubbles protect the Solar System
(NASA video at the source)
The Voyager spacecraft found that the Sun's magnetic field generated by the foam as a result of rotation of the star
CONTRAST. The old and the new vision of the limits of the heliosphere. On the right, including magnetic bubbles foam (Photo: NASA Special)
Thursday June 9, 2011
Renata S?nchez | The Universal
22:00
The Solar System in the farthest zone contains soap bubbles and turbulent magnetic particles interacting with other galaxies that enter our system determine how to interact with the rest of the universe, revealed observations probe Voyager space agency Administration (NASA).
Scientists used a computer model to analyze data from the probe has reached the farthest extent of the system in the history of Earth's space race and found that the Sun's magnetic field is formed by 160 million miles of bubbles.
The bubbles are created when magnetic field lines are broken and scattered field are reorganized in this way. Each bubble has a length of 100 million miles (160 million 934 thousand 400 kilometers), scientists described in the scientific journal Astrophysical Journal .
Like Earth, our Sun has a magnetic field at its poles. Field lines extend outward by the solar wind, expanding the charged particles from the star towards the end of the Milky Way.
Voyager is 14 billion miles from Earth and is in a border area of the system. In that area the solar wind and magnetic field are affected by the material which in turn expelled other stars.
"The sun's magnetic field expands along the edge of the Solar System that the rotations of solar magnetic field that causes it to twist and wrinkle, similar to a ballerina skirt. In the far reaches of the Sun, where Voyager are the folds of the skirt are packed, "said Merav Opher astronomer at Boston University and author of the article published in the Journal.
When the magnetic field is so compact, the magnetic lines intersect and reconnect, the reconnection magnetic energy is just as solar flares. The compact fold reorganize themselves, sometimes explosively, so they create magnetic bubbles foam.
The researchers named this region as "the heliosheath" which is the boundary between the Solar System and the rest of the Milky Way, which thousands of objects and body tries to enter, but face a barrier violent magnetic bubbles.
The relevance of this finding relates to the importance of understanding the structure of the solar magnetic field, as this would allow scientists to explain how galactic cosmic rays entering our solar system interact and influence how the Sun and stars with the rest of the galaxy.
"We continue trying to understand the implications of the findings," said physicist Jim Drake of the University of Maryland and a researcher of the Voyager team.
The theory was argued before learning of the possible existence of bubbles was that external bodies are hampered by the existence of cosmic rays on the edge of the Solar System.
"The magnetic bubbles appear as our first counter-argument against cosmic rays. We have not determined whether this is a good thing or not," said Opher.
On the one hand, the bubbles could be seen as a very porous shield that would allow many cosmic rays enter our system. But on the other hand, cosmic rays could be trapped inside the bubbles which would be a much more powerful shield.
Scientists will have to wait for more data from the Voyager mission consists of two twin probes that were launched in 1977 with the aim of crossing the border interstellar space.