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19972023
most citedSolar Meridional Circulation from Doppler Shifts of the Fe I line at lambda 5250 Angstroms as Measured by the 150-foot Solar Tower Telescope at the Mt. Wilson Observatory

152 citations · 726 across the 17 of their papers we have counts for

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astro-ph2006★ 129 cited

Spectral Line Selection for HMI: A Comparison of Fe I 6173 and Ni I 6768

A. A. Norton, J. Pietarila Graham, R. K. Ulrich +8

We present a study of two spectral lines, Fe I 6173 Angstroms and Ni I 6768 Angstroms, that were candidates to be used in the Helioseismic and Magnetic Imager (HMI) for observing D…