Electron impact polarization of X-ray lines from hydrogen-like ions during solar flares

Details Electron impact polarization of X-ray lines from hydrogen-like ions during solar flares Electron impact polarization of X-ray lines from hydrogen-like ions during solar flares

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981soph...71...77h&link_type=abstract

Solar Physics, vol. 71, May 1981, p. 77-89.

Physics

49

Electron Impact, Hydrogen Ions, Linear Polarization, Solar Flares, Solar X-Rays, Fine Structure, High Energy Electrons, Lyman Alpha Radiation, Particle Collisions, Solar Corona, Solar Electrons, Solar Magnetic Field, Solar Wind

Scientific paper

The linear polarization of X-ray lines from highly charged hydrogenic ions is calculated under the assumption that the ions are collisionally excited by nonthermal electrons with an anisotropic pitch-angle distribution around magnetic field lines. The results are applied to the conditions in solar flares. The maximum degree of polarization to be expected is quite low, of the order of some percent. In case of favorable conditions it should be feasible to detect line polarization during flares if the short-wavelength fine-structure component of the Lyman-alpha doublet is observed.

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