Shock Wave:
A shock wave is a strong pressure wave in any elastic medium such as air, water, or a solid substance, produced by supersonic aircraft, explosions, lightning, or other phenomena that create violent changes in pressure.
Definition: shock wave: A strong compression wave where there is a sudden change in gas velocity, density, pressure and temperature.
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Shock waves can compress other interstellar clouds and trigger star formation. Star birth and the production of shock waves are thought to produce a chain reaction of star formation in molecular cloud complexes.
shock wave
a powerful wave caused by a sudden change in density, pressure, or temperature that travels though a medium faster than sound travels through that same medium
short-period comet ...
SHOCK WAVE - Abrupt perturbation in the temperature, pressure and density of a solid, liquid or gas, that propagates faster than the speed of sound.
Shock Wave
A sharp change in the pressure, temperature, and density of a fluid which develops when the velocity of the fluid begins to exceed the velocity of sound.
Shooting Star ...
Shock Wave
A sudden change in pressure that travels as an intense sound wave.
Sidereal Drive ...
Shock wave: A powerful compressional wave that lasts for an extremely brief time. Shock waves are created by explosive events, such as the impact of a meteorite on a planetary surface.
shock waves A wave front marked by an abrupt change in pressure caused by an object or material moving faster than the speed of sound. For example, a sonic boom produced by an aircraft going faster than the speed of sound.
shock wave - (n.)
discontinuity in the flow of a fluid (including a gas or plasma) marked by an abrupt increase in pressure, temperature, and flow velocity at the shock front.
sidereal - (n.) ...
Shock wave expands.
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Fate has something very different, and very dramatic, in store for stars which are some 5 or more times as massive as our Sun. After the outer layers of the star have swollen into a red supergiant (i.e.
Shock Wave
A high-pressure wave that travels at supersonic speeds. Shock waves are usually produced by an explosion.
Shock Wave ...
shock wave
A strong compression wave where there is a sudden change in gas velocity, density, pressure and temperature.
SHOCK WAVE
A shock wave is a very strong pressure wave in any elastic medium (such as air, water, or a solid), produced by supersonic craft, lightning, explosions, or other extreme phenomena that create sudden, huge changes in pressure.
A shock wave is produced which passes, in two hours, through the outer layers of the star causing fusion reactions to occur. These form the heavy elements.
The shock wave also accelerates the ISM into an expanding shell which outputs copious amounts of synchrotron radiation due to the acceleration of electrons in the presence of a magnetic field.
The shock wave forms a cone of pressurized air. A sharp release of pressure after the buildup of a shock wave is heard as a sonic boom. It is similar to the sharp release of pressure when a pin pops a balloon and makes a loud noise.
A standing shock wave in front of the magnetosphere, arising from the interaction of the supersonic solar wind with the Earth’s magnetic field.
bright point ...
- reflected shock wave
- The Linux Gamers' How-To - 11.8. System Shock (Electronic Arts, Origin)
- Kelvin Considers System Termination in Lost's Season Two Finale ...
Bubble-like shock wave still expanding from a supernova explosion 15,000 years ago.
(view here for larger image.) ...
The impact of the shock wave with the dense interstellar medium causes the gas to heat to millions of Kelvins. As the gas then cools, it emits radiation in the optical wavelengths which is what the Hubble Space Telescope has recorded.
bow shock: The shock wave that flanks the magnetosphere on the day side. It causes the solar wind flow to slow down and flow around the magnetosphere.
C ...
A shock wave theoretically occurring along a common line of intersection of all the pressure disturbances emanating from an infinitesimally small particle moving at supersonic speed through a fluid medium, ...
= shock wave. 2. A blow, impact, collision, or violent jar. 3. A sudden agitation of the mental or emotional state or an event causing it. 4. The sudden stimulation caused by an electrical discharge on the animal or human organism (e.g.
shock metamorphism The production of irreversible chemical or physical changes in rocks by a shock wave generated by impact, or detonation of high-explosive or nuclear devices.
In sonoluminescence, acoustic shock waves create temporary bubbles that collapse shortly after creation, producing very high temperatures and pressures. In 2002, Rusi P.
A large shock wave is produced by the explosion. The shock wave can travel through space and can compress gas clouds, which will lead to new star formation.
When all this stuff hits the core it bounces and drives a shock wave outward. The escaping neutrinos play an important role in energizing this outward moving shock wave.
Possible trigger mechanisms could be a shock wave from the explosion of a nearby massive star at its death or from the passage of the cloud through regions of more intense gravity as found in the spiral arms of spiral galaxies.
These two clumps recently collided setting up shock waves. The bow shock on the right in the red image is especially prominent.
The Local Bubble was created by a shock wave (or more than one). The question that is still open for debate is what created it? Some astronomers hold that it was created by shock waves from star formation in the near by nebulae.
Dr Aline Vidotto, of the University of St Andrews, presented a new model based on observations made with the SuperWASP project and the Hubble Space Telescope, where she likened the magnetic ‘bow-shock' of our home planet - a magnetic shock wave ...
Bright 'pearls' of light mark the expanding shock wave from Supernova 1987A, an exploding star that was first seen from Earth in February 1987.
The Advanced Composition Explorer (ACE) satellite, orbiting above Earth, detects the shock waves of particles arriving at the outer edge of our planet's atmosphere.
FeII emissions are ubiquitous and one finds them whenever a low-density medium is heated by shock waves, expanding atmospheres or radiation from hot spots or a binary companion. They are thus present in extended envelopes and in stellar chromospheres.
Much of the visible light comes from the decay of radioactive elements produced by the supernova shock wave, and even light from the explosion itself is scattered by dense and turbulent gases.
In 2002, its diameter was finally measured to be about 1,520 miles (2,440 km) across based on shock wave data generated by earthquakes from more than 300,000 seismic events between 1964 and 1994.
Bright filaments correspond to a shock wave expanding through the intersteller medium (from the left to the right in this image).
A bow shock is a supersonic shock wave that is formed as the solar wind interacts with the outermost layer of a planet's magnetosphere (or a highly conducting ionosphere).
Detonation is a process of combustion in which a supersonic shock wave is propagated through a fluid due to an energy release in a reaction zone....
, as with high explosives.
Severe solar-produced shock wave hits the magnetosphere, produces an additional (temporary) radiation belt.
the HESS telescope array in Namibia maps a circular source of high-energy gamma rays, evidence for the origin of cosmic rays in supernovas.
Bow shock The supersonic shock wave on the sunward side of the Earth caused by the blast of the solar wind against the Earth's magnetosphere. Solar wind is slowed to subsonic speeds and heated very rapidly as it arrives at the bow shock.
supernova remnant - an expanding shell of gas ejected at high speeds by a supernova explosion; the remnant is bounded by an expanding shock wave, and consists of ejected material expanding from the explosion, ...
The resulting shock wave blows the outer layers of the star into space, possibly leaving a core that becomes either a neutron star or a black hole, depending on the remaining mass.
Shock waves surge outward through space even faster, at up to 32,000 km/s (20,000 miles/s), and occasionally causing the initiation of new star formation regions. The contracting core that remains consists mainly of neutrons.
Most impacts will strike at an angle no more than 45 degrees from the vertical, and the impact craters will always be close to circular, since the shock wave that results from the impact propagates symmetrically.
The shock wave produced by the Caloris impact may have been reflected and focused to the antipodal point, thus jumbling the and breaking it into a series of complex blocks. The area covered is about 800 km (497 mi) on a side.
"We think these old, relic lobes have been 're-lighted' by shock waves from rapidly-moving material falling into the cluster of galaxies as the cluster continues to accrete matter," said Ananda.
The explosion flattened thousands of square miles, and the seismic shock wave was detected as far away as London.
This collision will send off shock waves and create heavy elements, like uranium. Also, the outer layers of the star will be thrown off to space. This is a Type II supernova explosion.
One crater, Valhalla, seems to be surrounded by frozen shock waves that extend 2,000 kilometers from its center, giving it a bull's-eye appearance (see figure 10).
The center of this pool of molten Moon was then caught up by the shock wave that rebounded off the crater's walls and hurled the material upwards where it solidified as a sharp column of rock.
A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. The disturbance could be, for example, the shock wave from a nearby supernova.
Nevertheless, it is sufficiently dense and hot (from shock waves) to produce observable X-rays. Merope's greatest claim to fame, however, is not the star itself, but its surroundings. The Pleiades is enmeshed in a cloud of dusty gas.
Gravity crushes these stars so fast that a shock wave is created, resulting in a massive explosion known as a supernova. What remains behind depends on the mass of the star. Large stars will form extremely dense objects known as neutron stars.
CME's can seriously disrupt the Earth's environment through radiation, which arrives only 8 minutes after being released, and through very energetic particles pushed along by the shock wave of the CME. (go to first use in the text) ...
The leading edges of fast-moving CMEs drive giant shock waves before them through the solar wind at speeds up to 1200 km per second.
Alkaid is just below the temperature limit at which stars generate strong X-rays because of shock waves in their winds. Unlike the other members of the Big Dipper asterism, Alkaid does not belong to the Ursa Major moving cluster.
The Caloris Basin is one of the largest impact craters in the solar system. At 800 miles across it is bigger than the British Isles. The impact was so great that the shock waves created rocky ridges on the other side of the planet.
However, if a slow moving stream is followed by a fast moving stream the faster moving material will catch-up to the slower material and plow into it. This interaction produces shock waves that can accelerate particles to very high speeds.
 See also: Wave, Solar, Field, Planet, Solar System
  
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