Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The region in the heliosphere between the termination shock and the heliopause.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy A
zone between thetermination shock and theheliopause , in theheliosphere , at the outer border of theSolar System , where thesolar wind is dramatically slower than within the termination shock.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The heliosheath is the final area of the solar system where the sun's wind blows:
Voyager 1 reaches the edges of the solar system Melissa Bell 2010
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The new data suggests, however, that the interstellar magnetic field slips around the heliosphere and the outer shell, called the heliosheath, leaving the spherical shape of the heliosphere intact.
Cassini/IBEX Data Changes View of Heliosphere Shape | Universe Today 2009
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At the edge of the heliosheath is the heliopause, a demarcation line that bounds our solar system from interstellar space.
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Both spacecraft are now in a region known as the "heliosheath", the outermost layer of the Solar System, where the solar wind, which can travel 16 miles per second, is being slowed down by the rising pressure of interstellar gas.
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Together, the results create the first map of the heliosphere and its thick outer layer known as the heliosheath, where solar wind streaming out from the sun gets heated and slowed as it interacts with the interstellar medium.
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The two Voyagers are located in the outermost layer of the heliosphere, or "heliosheath," where the solar wind is slowed by the pressure of interstellar gas.
Signs of the Times 2009
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These two probes, which were launched in the 1970's to explore the outermost reaches of the solar system and then cruise into the unknown, have been making measurements of their surroundings during this transition through the boundary region, or the 'heliosheath'.
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The event is a major milestone in Voyager 1's passage through the heliosheath, the turbulent outer shell of the sun's sphere of influence, and the spacecraft's upcoming departure from our solar system.
Voyager 1 reaches the edges of the solar system Melissa Bell 2010
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Launched in 1977, the unmanned ship is about 10.8 billion miles away from the sun, in an area of the solar system called the heliosheath.
Voyager 1 reaches the edges of the solar system Melissa Bell 2010
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To their surprise, there was enough data to complete a map of the intensity of the atoms, and discovered a belt of hot, high pressure particles where the interstellar wind flows by our heliosheath bubble.
Cassini/IBEX Data Changes View of Heliosphere Shape | Universe Today 2009
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