Do more with one link - claim and personalize your FREE link today! Effortlessly schedule, video meet, message chat, network, share materials, e-sign, etc – all in one spot. Collaborate, Nurture connections, Improve client services, Expedite deal closures, and more. 💼 Join FREE!!

Recent Comments

    Alfven waves tagged posts

    Astrophysicists find evidence that Alfvén Waves Lead to Heat Generation in the Magnetosphere

    November 29, 2024, Categories  Astronomy/Space

    Evidence that Alfvén waves accelerate ion beams, creating small-scale acoustic waves, generating heat
    An artist’s impression shows the four spacecraft of the Magnetospheric Multiscale Mission, which fly in a tetrahedral formation and gather information about the microphysics of reconnecting magnetic-field lines and the associated processes. Credit: NASA/GSFC

    A small team of astrophysicists at the University of California, Los Angeles, working with colleagues from the University of Texas at Dallas and the University of Colorado, Boulder, has found evidence that Alfvén waves in space plasmas speed up ion beams, resulting in the creation of small-scale acoustic waves that in turn generate heat in the magnetosphere.

    In their study, published in the journal Physical Review Letters, the group used data from the four-spacecraft Magnetospheric Multiscale (MMS) mission that took place in 20...

    Read More

    70-year-old mystery of how Magnetic Waves Heat the Sun cracked

    March 8, 2018, Categories  Astronomy/Space

    A view of a sunspot on the solar surface, visible here as a dark collection of plasma with magnetic field strengths similar to those found in modern hospital MRI machines. However, it is the size of the sunspot, which is comparable to that of our own Earth (see the scale Earth depicted in the lower-right corner), that gives these structures immense power and energy. The recent work published in Nature Physics reveals first-time evidence for how a rare breed of magnetic waves, which originate within the centre of sunspots, can form shockwaves that heat the surrounding plasma by thousands of degrees. Credit: Image courtesy of Queen's University, Belfast

    A view of a sunspot on the solar surface, visible here as a dark collection of plasma with magnetic field strengths similar to those found in modern hospital MRI machines. However, it is the size of the sunspot, which is comparable to that of our own Earth (see the scale Earth depicted in the lower-right corner), that gives these structures immense power and energy. The recent work published in Nature Physics reveals first-time evidence for how a rare breed of magnetic waves, which originate within the centre of sunspots, can form shockwaves that heat the surrounding plasma by thousands of degrees. Credit: Image courtesy of Queen’s University, Belfast

    Scientists at Queen’s University Belfast have led an international team to the ground-breaking discovery that magnetic waves crashing throug...

    Read More

    Distant Black Hole Wave Twists like Giant Whip

    July 13, 2015, Categories  Astronomy/Space, Physics

    Fast-moving magnetic waves emanating from a distant supermassive black hole undulate like a whip whose handle is being shaken by a giant hand, according to a new study using National Radio Astronomy Observatory’s Very Long Baseline Array. Scientists used this instrument to explore the galaxy/black hole system known as BL Lacertae (BL Lac) in high resolution.
    The findings help researchers understand how black holes produce jets.

    “The waves are excited by a shaking motion of the jet at its base,” said David Meier. It’s the 1st time Alfven waves have been identified in a black hole system. They are generated when magnetic field lines, such as those from the sun or a disk around a black hole, interact with ions, and become twisted or coiled into a helical shape...

    Read More