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CAN WE OBSERVE THE TEMPERATURE INHOMOGENEITIES AND MAGNETIC FLUX TUBES AS THE FINE STRUCTURE ON THE EXTREME LIMB OF THE SUN?

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Abstract

Fine structure of brightness inhomogeneities with ΔI r.m.s. = 2.9% was discovered on the extreme limb of the Sun on the best quality white-light photographs obtained at the Soviet Stratospheric Solar Observatory. The concept is that temperature inhomogeneities are responsible for the limb structure. The real value δT r.m.s. = 109K is required to explain our observations. Another possible explanation is that small-scale magnetic flux tubes with the realistic filling factor f* = 1% are the source of the limb brightness fluctuations.

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Authors and Affiliations

  1. Central Astronomical Observatory at Pulkovo, The Russian Academy of Sciences, St. Petersburg, 196140, Russia

    Vadim N. Karpinsky & Oleg V. Okunev

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  1. Vadim N. Karpinsky
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  2. Oleg V. Okunev
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Karpinsky, V.N., Okunev, O.V. CAN WE OBSERVE THE TEMPERATURE INHOMOGENEITIES AND MAGNETIC FLUX TUBES AS THE FINE STRUCTURE ON THE EXTREME LIMB OF THE SUN?. Solar Physics 173, 233–242 (1997). https://doi.org/10.1023/A:1004906505377

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