magnetogram


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magnetogram

[mag′ned·ə‚gram]
(astronomy)
An image of the sun showing magnetic fields, obtained using a spectroheliograph that has been modified to use the Zeeman effect.
References in periodicals archive ?
Analytical representation of magnetograms (14) permits to determine the size of the band [+ or -] [X.
Nine posters join the one keynote, 12 invited and 27 contributed talks represented here, and the collection covers flows around active regions on the surface and below (including surface flows from magnetograms and large eddy simulation of solar photosphere convection with realistic physics), flux emergence and cancellation (including hinode observations of flux emergence in quiet an active regions), space weather and active regions from back to front (including challenges created by active regions in global models), the morphology of active regions and filaments (include the life and death of solar active regions), and magnetic flux and magneto-acoustic waves (including a report on the interaction between magneto-acoustic waves and magnetic fields).
The plages are emission regions tied to strong magnetic fields and are nearly identical to the shape of the magnetic regions visible on solar magnetograms.
A sampling of topics: the microstructure of a sunspot penumbra, penumbral moving magnetic features, SOLIS-VSM solar vector magnetograms, multigrid methods for polarized radiative transfer, tunable narrow-band filter for imaging polarimetry, the diffraction limited spectro-polarimeter, a brief overview of the Second Solar Spectrum, polarizability factors for molecular bands, spectro-polarimetry of cool stars, molecular diagnostics of the internal structure of starspots and sunspots, and the effect of turbulent electric fields on the scattering polarization of hydrogen lines.
His site provides real-time maps and magnetograms, with links to where the data come from.