608 citations · 1.6k across the 24 of their papers we have counts for
24 papers
The Decay Process of an α-configuration Sunspot
Yang Peng, Zhi-Ke Xue, Xiao-Li Yan +8
The decay of sunspot plays a key role in magnetic flux transportation in solar active regions (ARs). To better understand the physical mechanism of the entire decay process of a su…
Solar Cycle Observations
Aimee Norton, Rachel Howe, Lisa Upton +1
We describe the defining observations of the solar cycle that provide constraints for the dynamo processes operating within the Sun. Specifically, we report on the following topics…
Characterizing the Umbral Magnetic Knots of -Sunspots
A. A. Norton, P. J. Levens, K. J. Knizhnik +2
Delta ()-spots are active regions (ARs) in which positive and negative umbrae share a penumbra. They are known to be the source of strong flares. We introduce a new quantity, th…
Improvement of the Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Inversion Code
Ana Belén Griñón-Marín, Adur Pastor Yabar, Yang Liu +2
A spectral line inversion code, Very Fast Inversion of the Stokes Vector (VFISV), has been used since May 2010 to infer the solar atmospheric parameters from the spectropolarimetri…
Oscillations observed in Umbra, Plage, Quiet-Sun and the Polarity Inversion Line of Active Region 11158 using HMI/SDO Data
A. A. Norton, R. B. Stutz, B. T. Welsch
Using data from the Helioseismic Magnetic Imager, we report on the amplitudes and phase relations of oscillations in quiet-Sun, plage, umbra and the polarity inversion line (PIL) o…
Perspectives on Astrophysics Based on Atomic, Molecular, and Optical (AMO) Techniques
Daniel Wolf Savin, James F. Babb, Paul M. Bellan +35
About two generations ago, a large part of AMO science was dominated by experimental high energy collision studies and perturbative theoretical methods. Since then, AMO science has…