Waves and oscillations have been observed in the Sun's atmosphere for over half a century.
While such phenomena have readily been observed across the entire electromagnetic …

Abstract The Atacama Large Millimeter/submillimeter Array (ALMA) is a new powerful tool for
observing the Sun at high spatial, temporal, and spectral resolution. These capabilities can …

The solar corona is two to three orders of magnitude hotter than the underlying photosphere,
and the energy loss of coronal plasma is extremely strong, requiring a heating flux of over …

Spicules are rapidly evolving fine-scale jets of magnetized plasma in the solar
chromosphere. It remains unclear how these prevalent jets originate from the solar surface …

Solar flares are generally believed to be powered by free magnetic energy stored in the
corona, but the build up of coronal energy alone may be insufficient to trigger the flare to …

Given its unchallenged capabilities in terms of sensitivity and spatial resolution, the
combination of imaging spectropolarimetry and numeric Stokes inversion represents the …

Context. When spectropolarimetric data are recorded at high spatial, spectral, and temporal
resolution, the quality of the data is generally limited by the signal-to-noise ratio. Aims. We …

Helium ionization plays an important role in the energy balance of the upper chromosphere
and transition region. Helium spectral lines are also often used as diagnostics of these …

An Integral Field Unit (IFU) based on image slicers has been added to the GREGOR Infrared
Spectrograph (GRIS). This upgrade to the instrument makes possible 2D spectropolarimetry …

Obtaining high-quality magnetic and velocity fields through Stokes inversion is crucial in
solar physics. In this paper, we present a new deep learning method, named Stacked Deep …