33 citations · 34 across the 5 of their papers we have counts for
5 papers · 1 filter
A first spectroscopic measurement of the magnetic field strength for an active region of the solar corona
Ran Si, Tomas Brage, Wenxian Li +3
For all involved in astronomy, the importance of monitoring and determining astrophysical magnetic field strengths is clear. It is also a well-known fact that the corona magnetic f…
MCDHF and RCI calculations of energy levels, lifetimes, and transition rates in Si III and Si IV
Betül Atalay, Tomas Brage, Per Jönsson +1
We present extensive multiconfiguration Dirac-Hartree-Fock and relativistic configuration interaction calculations including 106 states in doubly ionized silicon (Si III) and 45 st…
Breit and QED effects on the 3d9 2D3/2 - 2D5/2 transition energy in Co-like ions
R. Si, X. L. Guo, T. Brage +3
The multiconfiguration Dirac-Hartree-Fock theory is used to calculate the 3d9 2D3/2 - 2D5/2 transition energy for Co-like ions with Z = 28-100. We investigate how electron correlat…
A Novel Method to Determine Magnetic Fields in low-density Plasma e.g. Solar Flares Facilitated Through Accidental Degeneracy of Quantum States in Fe
Wenxian Li, Jon Grumer, Yang Yang +8
We propose a new method to determine magnetic fields, by using the magnetic-field induced electric dipole transition $3p^5\, ^2\mathrm{P}…
Tungsten spectroscopy in the EUV observed in SH-HtscEBIT
Wenxian Li, Zhan Shi, Yang Yang +4
We have recorded extreme ultraviolet spectra from to ions using a new flat field spectrometer installed at the Shanghai high temperature super…