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    sun’s magnetic field tagged posts

    Magnetic Field Maps of the Sun’s Corona

    September 14, 2024, Categories  Astronomy/Space

    A purple and yellow image shows flares coming off the side of the sun and looping back. An inset shows the actual data of the coronal map in black and white
    The NSF Daniel K. Inouye Solar Telescope presents its first map of the solar coronal magnetic field signals as measured using the Zeeman Effect. The Zeeman Effect polarizes the coronal emission, which requires the advancements of the Inouye Solar Telescope to measure as its signals are only a few parts per billion of the Sun’s surface brightness. The background image identifies the region observed in detail by Inouye as imaged by NASA’s Solar Dynamics Observatory in ultraviolet light. Credit: NSF/NSO/AURA

    The U.S. National Science Foundation (NSF) Daniel K...

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    Sun’s Magnetic Field during the Grand Minimum is in fact at its Maximum

    May 9, 2016, Categories  Astronomy/Space

    About 80 solar cycles seen from the surface, i.e. more than 1,000 years in solar time, modelled by means of a computer simulation. At 20-50 years in simulation time, a simulated grand minimum occurs, which in actual fact is the maximum of magnetic energy. Credit: Image courtesy of Aalto University

    About 80 solar cycles seen from the surface, i.e. more than 1,000 years in solar time, modelled by means of a computer simulation. At 20-50 years in simulation time, a simulated grand minimum occurs, which in actual fact is the maximum of magnetic energy. Credit: Image courtesy of Aalto University

    The study of the Sun’s long-term variation over a millennium by means of super computer modelling showed that during a time period of the Maunder Minimum type, the magnetic field may hide at the bottom of the convection zone. The study seeks explanation for the mechanisms underlying the long-term variation in solar activity. The recently published study was carried out by running a global computer model of the Sun on Finland’s most powerful super computer over 6 months.

    ‘The Sun has an 11-year cy...

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