Observational aspects of sunspot oscillations

T. J. Bogdan; P. G. Judge

doi:10.1098/rsta.2005.1701

Observational aspects of sunspot oscillations

T. J. Bogdan
, P. G. Judge

Solar Frontiers

National Center for Atmospheric Research

Research output: Contribution to journal › Article › peer-review

128 Scopus citations

Abstract

Oscillatory phenomena observed in sunspot umbrae and penumbrae are reviewed and critically discussed. A natural interplay between the thermal atmospheric stratification and the ordered collimation imposed by the intense magnetic field leads naturally to the characteristic properties of the umbral chromospheric and photospheric oscillations and their interpretation as low-β (β = 8πp/B²) slow magneto-acoustic-gravity waves guided along the ambient magnetic field.

Original language	English
Pages (from-to)	313-331
Number of pages	19
Journal	Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Volume	364
Issue number	1839
DOIs	https://doi.org/10.1098/rsta.2005.1701
State	Published - Feb 15 2006

Keywords

Helioseismology
Magnetic fields-sunspots-Sun
Sun

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10.1098/rsta.2005.1701

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abstract = "Oscillatory phenomena observed in sunspot umbrae and penumbrae are reviewed and critically discussed. A natural interplay between the thermal atmospheric stratification and the ordered collimation imposed by the intense magnetic field leads naturally to the characteristic properties of the umbral chromospheric and photospheric oscillations and their interpretation as low-β (β = 8πp/B2) slow magneto-acoustic-gravity waves guided along the ambient magnetic field.",

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AU - Judge, P. G.

PY - 2006/2/15

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N2 - Oscillatory phenomena observed in sunspot umbrae and penumbrae are reviewed and critically discussed. A natural interplay between the thermal atmospheric stratification and the ordered collimation imposed by the intense magnetic field leads naturally to the characteristic properties of the umbral chromospheric and photospheric oscillations and their interpretation as low-β (β = 8πp/B2) slow magneto-acoustic-gravity waves guided along the ambient magnetic field.

AB - Oscillatory phenomena observed in sunspot umbrae and penumbrae are reviewed and critically discussed. A natural interplay between the thermal atmospheric stratification and the ordered collimation imposed by the intense magnetic field leads naturally to the characteristic properties of the umbral chromospheric and photospheric oscillations and their interpretation as low-β (β = 8πp/B2) slow magneto-acoustic-gravity waves guided along the ambient magnetic field.

KW - Helioseismology

KW - Magnetic fields-sunspots-Sun

KW - Sun

UR - https://www.scopus.com/pages/publications/32644445738

U2 - 10.1098/rsta.2005.1701

DO - 10.1098/rsta.2005.1701

M3 - Article

AN - SCOPUS:32644445738

SN - 1364-503X

VL - 364

SP - 313

EP - 331

JO - Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

JF - Philosophical transactions. Series A, Mathematical, physical, and engineering sciences

IS - 1839

ER -

Observational aspects of sunspot oscillations

Abstract

Keywords

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