Sentences with phrase «of plasma jets»

«Getting the biggest bang out of plasma jets
«Capillary plasma jets have a wide range of applications and the length of the plasma jet is an important characteristic parameter.»

Not exact matches

One of his main achievements was inventing a «magnetic nozzle» that could spray the plasma particles in a high - speed jet.
Earlier research with NASA's Chandra X-ray observatory revealed that the jets from this AGN are carving out a pair of giant «radio bubbles,» huge cavities in the hot, diffuse plasma that surrounds the galaxy.
Due to mechanisms that are poorly understood, twin jets of electrically charged gas, or plasma, shoot out perpendicular to the disk.
That model assumes that relativistic jets store energy primarily in the form of hot matter (plasma) and less in the form of magnetic fields generated by shock waves at the front of the jets.
Since the researchers know the energy of the jet when it is produced, and can measure its energy coming out, they can calculate its energy loss, which provides clues to the density of the plasma and the strength of its interaction with the jet.
«We have made, by far, the most precise extraction to date of a key property of the quark - gluon plasma, which reveals the microscopic structure of this almost perfect liquid,» says Xin - Nian Wang, physicist in the Nuclear Science Division at Berkeley Lab and managing principal investigator of the JET Collaboration.
In this new work, Wang's team refined a probe that makes use of a phenomenon researchers at Berkeley Lab first theoretically outlined 20 years ago: energy loss of a high - energy particle, called a jet, inside the quark gluon plasma.
One difficulty in using a jet as an x-ray of the quark - gluon plasma is the fact that a quark - gluon plasma is a rapidly expanding ball of fire — it doesn't sit still.
The team determined one particular property of the quark - gluon plasma, called the jet transport coefficient, which characterizes the strength of interaction between the jet and the ultra-hot matter.
The approach taken by the JET Collaboration to achieve it, by combining efforts of several groups of theorists and experimentalists, shows how to make other precise measurements of properties of the quark gluon plasma in the future.»
These are spicules, and despite their abundance, scientists didn't understand how these jets of plasma form nor did they influence the heating of the outer layers of the sun's atmosphere or the solar wind.
As the comet gets closer to the sun and is heated more and more, it will produce a complex and dynamic atmosphere of gas, dust, and plasma called a coma, full of outbursts and jets.
Solar physicist Bart De Pontieu of the Lockheed Martin Solar and Astrophysics Laboratory in Palo Alto, California, and his colleagues report in the 7 January issue of Science that they can trace jets of plasma, or ionized gas, rising into the corona.
No light escapes from these regions, and astrophysicists like Bergmann must instead study the traces of gas, dust, and the piercing jets of plasma that are sometimes found in their vicinity.
In blowout jets, the eruption of relatively cool plasma leads to magnetic reconnection too and this in turn drives the eruption of hot plasma, so that both hot and cold material are carried into space.
Late in that century researchers began investigating how jets of plasma might be used to carve up flesh just as industrial plasma cutters have carved up metal since the 1960s.
So these are not sort of small players, these are major parts of the energy budget of an accreting black hole and by extension, they have an important impact on their environment; and the jets associated with accreting black holes and nuclei galaxies inflate giant lobes of plasma outside the galaxy and these heat the surrounding gas, they affect the fuel supply, they stimulate star formation, they in fact stimulate galaxy formation.
Roger Blandford is the coauthor of the Blandford - Znajek Process, the leading explanation for how black holes produce jets of plasma traveling at near light speed, but what's plasma?
But there are two jets — one that goes up and one that goes down — and these are associated with the region very close to the black hole and those jets contain plasmas that are moving at relativistic speeds, that is to say, speeds close to that of light.
Even protostars — these are young stars that are just forming and making their own planetary disks and so on — they make very powerful outflows called, the same sort of jets obviously moving at slower speeds, but they are full of plasma, that is flowing out at high speed; white dwarfs, neutron stars, black holes big and small, they seem able to do this task, it really seems to be a very common phenomenon.
In their next study, the researchers will use combinations of different pulse discharge circuits and discharge energies to see how these factors impact the plasma jet length.
It requires not one but both electrodes to have a high voltage to obtain an apokamp plasma jet, which typically develops from the bending point of the discharge channel.
This week in Review of Scientific Instruments, from AIP Publishing, a new study examines how the dimensions of the capillary producing the plasma affect the jet's length.
«Experimental results show that the longest plasma jet length can be obtained by adjusting the geometric factors,» said Jiaming Xiong, from the Huazhong University of Science and Technology and one of the authors.
Physicists working with plasma jets, made of a stream of ionised matter, have just discovered a new phenomenon.
The nozzle firing a jet of carbon nanotubes with helium plasma off and on.
«These jets of plasma are ejected so fast that they could traverse the length of California in just a couple of minutes,» said De Pontieu.
Astronomers using the National Science Foundation's Very Long Baseline Array (VLBA) have discovered jets of plasma blasted from the cores of distant galaxies at speeds within one - tenth of one percent of the speed of light, placing these plasma jets among the fastest objects yet seen in the Universe.
The project may involve the following topics: — Interaction of the solar wind with magnetised and unmagnetised planets — Space weather forecasts — Numerical (HPC) and analytical modelling of MHD wave processes and jets in solar and astrophysical plasma — MHD wave observations and solar magneto - seismology — Application of advanced data analysis to solar system science — Physics of collisionless shocks (including planetary and interplanetary shocks)-- Analysis of multi-point measurements made by space missions, e.g Cluster (ESA), THEMIS (NASA), MMS (NASA)
Scientists from the Massachusetts Institute of Technology, the University of Cambridge and some other international institutions investigating this «extreme stellar output» observed jets of hot plasma and gas bubbles (at about 10 million degrees) blasting out from the galaxy's central black hole.
The astrophysicists used the National Science Foundation's Very Large Array (VLA) radio telescope to capture the faintest details yet seen in the plasma jets emerging from the microquasar SS 433, an object once dubbed the «enigma of the century.»
Jets of plasma stream out of the black hole close to the speed of light, and some distance away, they inflate into giant bubbles of hot gas.
By using a telescope orbiting above the Earth, an Australian scientist has been able to get ten times closer to the core of a powerful jet of plasma shooting out from a black hole.
They routinely create hot plasma jets and gas bubbles that are thought to prevent the cooling of galaxies and regulate the formation of stars, which requires cold hydrogen gas as a building block.
The jet originates in the disk of superheated gas swirling around this object and is propelled and concentrated by the intense, twisted magnetic fields trapped within this plasma.
It has been known for long that some of these massive black holes eject spectacular plasma jets at a near speed - of - light that can extend far beyond the confines of their host galaxy.
Using high - intensity lasers at the University of Rochester's OMEGA EP Facility focused on targets smaller than a pencil's eraser, they conducted experiments to create colliding jets of plasma knotted by plasma filaments and self - generated magnetic fields.
It is thought that there are magnetic fields all across the universe and they have significant impact on various cosmic phenomena including plasma jets emanating from the vicinity of supermassive black holes and evolution of baby stars.
A small portion of material gets shot back out in powerful jets of hot gas, called plasma, that can wreak havoc on their surroundings.
In all cases, sinusoidal fluid - jet stimuli from different orientations suggested the underlying channels were opened not directly by deflections of the hair bundle but by deformation of the apical plasma membrane.
A NASA Hubble Space Telescope (HST) view of a 4,000 light - year long jet of plasma emanating from the bright nucleus of the giant elliptical galaxy M87.
Still no answer, same as you haven't explained why 500 = 1500 or how numerical models of closed physical systems like a jet engine or a contained high energy plasma = numerical model of an natural system on the scale of our planet.
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