The SUMER spectral atlas of solar-disk features
W Curdt, P Brekke, U Feldman, K Wilhelm… - Astronomy & …, 2001 - aanda.org
A far-ultraviolet and extreme-ultraviolet (FUV, EUV) spectral atlas of the Sun between 670 Å
and 1609 Å in the first order of diffraction has been derived from observations obtained with …
and 1609 Å in the first order of diffraction has been derived from observations obtained with …
On the Doppler shifts of solar ultraviolet emission lines
We examine emission-line profiles observed with the Solar Ultraviolet Measurement of
Emitted Radiation (SUMER) instrument during the roll of the SOHO spacecraft on 1997 …
Emitted Radiation (SUMER) instrument during the roll of the SOHO spacecraft on 1997 …
Forward modeling of the corona of the Sun and solar-like stars: from a three-dimensional magnetohydrodynamic model to synthetic extreme-ultraviolet spectra
A forward model is described in which we synthesize spectra from an ab initio three-
dimensional MHD simulation of an outer stellar atmosphere, where the coronal heating is …
dimensional MHD simulation of an outer stellar atmosphere, where the coronal heating is …
Analysis of transition-region emission-line profiles from full-disk scans of the Sun using the SUMER instrument on SOHO
H Peter - The Astrophysical Journal, 1999 - iopscience.iop.org
We examine statistical properties of line profiles seen in full-disk observations with the UV
spectrograph SUMER on board SOHO. In the SUMER data archive, full-disk data with …
spectrograph SUMER on board SOHO. In the SUMER data archive, full-disk data with …
[HTML][HTML] On the source regions of the fast solar wind in polar coronal holes
K Wilhelm, IE Dammasch, E Marsch… - … and Astrophysics, v …, 2000 - adsabs.harvard.edu
On the source regions of the fast solar wind in polar coronal holes ADS Classic is now
deprecated. It will be completely retired in October 2019. This page will automatically redirect to …
deprecated. It will be completely retired in October 2019. This page will automatically redirect to …
A benchmark study of atomic models for the transition region against quiet Sun observations
RP Dufresne, G Del Zanna… - Monthly Notices of the …, 2023 - academic.oup.com
The use of the coronal approximation to model line emission from the solar transition region
has led to discrepancies with observations over many years, particularly for Li-and Na-like …
has led to discrepancies with observations over many years, particularly for Li-and Na-like …
Coronal heating through braiding of magnetic field lines
Cool stars such as our Sun are surrounded by a million degree hot outer atmosphere, the
corona. For more than 60 years, the physical nature of the processes heating the corona to …
corona. For more than 60 years, the physical nature of the processes heating the corona to …
Observations of the Sun at vacuum-ultraviolet wavelengths from space. Part II: Results and interpretations
K Wilhelm, E Marsch, BN Dwivedi, U Feldman - Space science reviews, 2007 - Springer
In Part I of this review, the concepts of solar vacuum-ultraviolet (VUV) observations were
outlined together with a discussion of the space instrumentation used for the investigations …
outlined together with a discussion of the space instrumentation used for the investigations …
Morphology of the quiet solar upper atmosphere in the 4× 104< Te< 1.4× 106 K temperature regime
U Feldman, KG Widing, HP Warren - The Astrophysical Journal, 1999 - iopscience.iop.org
Studies on the morphology of the solar upper atmosphere began over three decades ago.
Early models assumed that the temperature structure of the solar upper atmosphere was …
Early models assumed that the temperature structure of the solar upper atmosphere was …
The nascent solar wind: Origin and acceleration
High-speed solar wind is known to originate in polar coronal holes, which, however, are
made up of two components: bright, high-density regions known as" plumes" and dark …
made up of two components: bright, high-density regions known as" plumes" and dark …