Sentences with phrase «magnetic reconnection»

Cluster has provided the first 3D observation of magnetic reconnection in space — a phenomenon that reconfigures the magnetic field and releases high amounts of energy.

Solar physicist Steven Cranmer of the University of Colorado Boulder, who has made simulations of magnetic reconnection in the outer corona, finds the results exciting.

In a separate study, a team from the University of Warwick has observed the first evidence that loop oscillations are driven directly by magnetic reconnection processes.

Eventually a process called magnetic reconnection destabilizes the fields, resulting in the explosive release of the stored energy we see as a flare.

These «explosions» are produced in a process known as magnetic reconnection, something well studied at Earth and is an important part of Space Weather, involved in energising the radiation belts and producing displays of the Northern lights.

«I was at a conference on magnetic reconnection at the time,» says Robert Lin, a solar physicist at the University of California at Berkeley.

He conducted magnetic reconnection experiments while earning his doctorate and then moved to the National Spherical Torus Experiment - Upgrade (NSTX - U), joining the team that conducted the first 10 weeks of operation on the upgraded facility.

Due to the huge amount of energy released in these superflares, it has been speculated if the underlying mechanism is the same as for solar flares, which are caused by magnetic reconnection in the solar corona.

«Solar dynamic loops reveal a simultaneous explosion and implosion, plus evidence for magnetic reconnection.»

They discovered that the lobe, an area of the magnetosphere which is usually filled with cold, unenergetic, plasma, does in some cases fill up with hot plasma when magnetic reconnection occurs on the night side of the Earth, thus closing the field lines and trapping the plasma within.

When magnetic reconnection occurs between two clouds of plasma that have the same density, the exhaust flow is wildly unstable — flapping about like a garden hose with too much water pressure.

Space Physicists led by Lancaster University used data to show that Cassini had passed through the region at Saturn where magnetic reconnection was occurring, which has never before been observed.

«We believe that this is an important piece of the puzzle for understanding how magnetic reconnection works, how charged particles are accelerated, and how particles from different regions can be mixed with each other,» says Daniel Graham.

A recent study used observations of magnetic reconnection from NASA's ARTEMIS — Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun — to show that in the long tail of the nighttime magnetosphere, extending away from Earth and the sun, most of the energy is converted into heat.

The other is magnetic heating, in which magnetic energy is continuously built up by photospheric motion and released through magnetic reconnection in the form of large solar flares and myriad similar but smaller events.

Open PhD project: Probing electron acceleration by fast magnetic reconnection using coherent stellar radio emissions

The coronal magnetic reconnection hypothesis can explain the observations via the notion that superflares and solar flares share the same origin and that the two activity distributions therefore are within similar range, but that superflares mainly take place on stars with activity levels larger than the Sun.

Our study provides observational (although non-exclusive) support for the coronal magnetic reconnection hypothesis, as we show that superflare stars generally exhibit higher chromospheric emissions than the Sun and other solar - like stars, although there is an overlap between the two distributions.

When magnetic field lines reconnect, they release energy; some researchers suspect that fine - scale magnetic reconnections above the sun's surface provide the energy to heat the corona.

In this region, which the scientists call the «merging point,» the presence of cold, dense plasma slows magnetic reconnection, blunting the sun's effects on Earth.

The ARTEMIS spacecraft have now spent more than a decade investigating the invisible phenomena near Earth, working in tandem with other missions like Time History of Events and Macroscale Interactions during Substorms, and Magnetospheric Multiscale to form a complete picture of magnetic reconnection near Earth.

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.

Heating of electrons parallel to the magnetic field in conjunction with magnetic reconnection is of especial interest.

Daniel Graham at IRF has recently published a detailed study of this asymmetrical magnetic reconnection in Physical review Review Letters 112, 215004 (2014).

Sufficiently powerful astrophysical shocks can yield relativistic particles via magnetic reconnection.

Elin Eriksson, Cluster / MMS investigations of particle acceleration in 3D during magnetic reconnection in the magnetotail.

Other projects launched during Prager's tenure include a new facility to investigate magnetic reconnection, an explosive process that is found throughout the universe; a plasma nanotechnology laboratory, and fledgling activities in mass separation using ideas from plasma physics.

Spacecraft observing magnetic reconnection have noted a fundamental gap between most theoretical studies of the phenomenon and what happens in space.

The differential rotation of the Sun's latitudes causes its magnetic field lines to become twisted together over time, causing magnetic field loops to erupt from the Sun's surface and trigger the formation of the Sun's dramatic sunspots and solar prominences (see magnetic reconnection).

Three - dimensional simulations have reinforced this theory, showing fan - shaped jets being formed during shearing reconnection between horizontal magnetic fields and a vertical current sheet, with the base of the jets corresponding to the location of magnetic reconnection [6].

On Earth's dayside, magnetic reconnection takes place at the intersection of solar magnetic field lines with those of Earth's magnetic field.

On Earth's nightside, magnetic reconnection happens in the magnetotail, where magnetic flux tubes originally disconnected on the dayside are reconnected.

Sometimes, such as during an event called magnetic reconnection where the lines explosively collide, the particles are shot off their trajectories, as if they were fired from a cannon.

These explosions, known as magnetic reconnection, occur when magnetic field lines cross, releasing stored magnetic energy.

The current sheets, believed to be produced in the coronal plasma, are potential sites for magnetic reconnections, which provide a mechanism for extreme heating of the corona.

These new results are key to understanding how magnetic reconnection can send particles zooming toward Earth, where they can initiate auroras and cause space weather.

«We're able to probe very small scales and this helps us to really pinpoint how energy is being converted through magnetic reconnection,» Argall said.

Auroras are a consequence of the solar wind penetrating the magnetopause when magnetic reconnection occurs.

The successful applicant will work with Prof. Dr. Jörg Büchner and Dr. Patricio Muñoz on kinetic simulations of electron acceleration by magnetic reconnection in stellar atmospheres to be verified by observed solar type - III radio bursts.

«One idea is that the process of magnetic reconnection on the night side of Earth causes a build - up of «trapped» hot plasma in the higher latitude lobes.»

The scientists plan to develop detailed simulations of the emergence of the magnetic field from the subsurface of the Sun into its atmosphere, as well as gain a three - dimensional view of plasma turbulence and magnetic reconnection in space that lead to plasma heating.

Previous work has suggested that magnetic reconnection can not allow all enough plasma to escape from the magnetosphere.

But when this field comes into contact with the sun's magnetic field — a process called «magnetic reconnection» — powerful electrical currents from the sun can stream into Earth's atmosphere, whipping up geomagnetic storms and space weather phenomena that can affect high - altitude aircraft, as well as astronauts on the International Space Station.

The magnetic reconnection process also might propel some of Mars» atmosphere into space.

Like a stretched rubber band suddenly snapping to a new shape, magnetic reconnection also releases energy, which could actively propel ions in the Martian atmosphere down the magnetotail into space.

The team found that a process called «magnetic reconnection» must have a big role in creating the Martian magnetotail because, if reconnection were occurring, it would put the twist in the tail.