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Symposium - International Astronomical Union Symposium - International Astronomical Union

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MHD Oscillations Observed in the Solar Photosphere with the Michelson Doppler Imager

Published online by Cambridge University Press:  08 February 2017

A.A. Norton ,
R. K. Ulrich ,
R.S. Bogart ,
R.I. Bush  and
J.T. Hoeksema
A.A. Norton
Affiliation:
Dept. of Phys. and Astron., Univ. of California at Los Angeles
R. K. Ulrich
Affiliation:
Dept. of Phys. and Astron., Univ. of California at Los Angeles
R.S. Bogart
Affiliation:
Hansen Experimental Phys. Laboratory, Stanford Univ
R.I. Bush
Affiliation:
Hansen Experimental Phys. Laboratory, Stanford Univ
J.T. Hoeksema
Affiliation:
Hansen Experimental Phys. Laboratory, Stanford Univ
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Extract

Magnetohydrodynamic (MHD) oscillations are observed in the solar photosphere with the Michelson Doppler Imager (MDI). The absorption of acoustic waves by sunspots (Braun et al., 1988) and the possible conversion of acoustic waves into MHD waves (Spruit et al., 1992) provide a plausible basis for the existence of MHD waves in the solar atmosphere and motivate this attempt at observation.

Type
VII. The Solar Atmosphere
Information
Symposium - International Astronomical Union , Volume 185: New Eyes to See Inside the Sun and Stars , 1998 , pp. 453 - 454
Copyright
Copyright © Kluwer 1998 

References

Braun, DC, LaBonte, BG, Duvall, TL: 1988, ‘The absorption of high-degree p-mode oscillations in and around sunspots,’ ApJ. 335, 1015 CrossRefGoogle Scholar
Spruit, HC, Bogdan, TJ: 1992, ‘The conversion of p-modes to slow modes and the absorption of acoustic waves by sunspots,’ ApJ. 391L, 109 CrossRefGoogle Scholar
Ulrich, RK: 1996, ‘Observations of magnetohydrodynamic oscillations in the solar atmosphere with properties of Alfvén waves,’ ApJ. 465, 436 CrossRefGoogle Scholar

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