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The solar spectrum seen at low resolution, below the atmospheric cutoff at 3100 Angstrom
Jul 11, 2022

Optimal spectral lines for measuring chromospheric magnetic fields

Selected swirling events
Nov 18, 2021

Multiwavelength High-resolution Observations of Chromospheric Swirls in the Quiet Sun

A comparison of 1D and 3D calculations of the brightness of Ca II K (top row), Mg II k (middle row) and H Lα (bottome row), computed as for the k line images, at the Doppler shifts shown
Nov 17, 2021

On the Cores of Resonance Lines Formed in the Sun's Chromosphere

SDO and IRIS full-disk observations from 2016 Feb 22
Nov 16, 2021

Detecting the Chromospheric Footpoints of the Solar Wind

Edge-enhanced images from near the core of the Mg II k line
Nov 15, 2021

Magnetic structure of the solar chromosphere-corona transition regions

A smoothed UV spectrum of α alpha Cen A, obtained by the Hubble Space Telescope
Nov 15, 2021

Measuring the magnetic origins of solar flares, CMEs and Space Weather

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This material is based upon work supported by the National Center for Atmospheric Research, a major facility sponsored by the National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.