Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...362..219l&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 362, Oct. 10, 1990, p. 219-225.
Astronomy and Astrophysics
Astrophysics
10
Emission Spectra, H Alpha Line, Line Spectra, Linear Polarization, Shock Fronts, Supernova Remnants, Electron Energy, Electron-Ion Recombination, Neutral Gases, Proton Energy, Radiative Transfer
Scientific paper
The linear polarization in the H-alpha transition excited as neutral hydrogen diffuses through a nonradiative shock is calculated for varying shock velocities and degrees of electron-ion equilibration behind the shock front. This polarization arises from impact excitation by an anisotropic distribution of exciting particles, in this case electrons and protons, and is a function of the electron and proton temperatures. It is found that polarizations of up to 10 percent may be present for shock velocities of about 2000 km/s. For some of the cases considered here, line emission following proton impacts may be important, and the possibility of an atomic recoil associated with such an excitation is discussed.
No associations
LandOfFree
Emission-line polarization as an equilibration diagnostic for nonradiative shock fronts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Emission-line polarization as an equilibration diagnostic for nonradiative shock fronts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emission-line polarization as an equilibration diagnostic for nonradiative shock fronts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1302284