Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000adnx.conf...41b&link_type=abstract
Atomic Data Needs for X-ray Astronomy, p. 41
Astronomy and Astrophysics
Astrophysics
Wave Equations, Electronic Structure, Scattering Functions, Astrophysics, Schroedinger Equation, Electron Density (Concentration), Excitation, Electron States, Electron Energy, Atomic Energy Levels
Scientific paper
Physical properties such as temperature and electron density of solar plasma and other astrophysical objects can be inferred from EUV and X-ray emission lines observed from space. These lines are emitted when the higher states of an ion are excited by electron impact and then decay by photon emission. Excitation cross sections are required for the spectroscopic analyses of the observations and various approximations have been used to calculate the scattering functions. One of them which has been widely used is a distorted wave approximation. This approximation, along with its applications to solar observations, is discussed. The Bowen fluorescence mechanism and optical depth effects are also discussed. It is concluded that such calculations are reliable for highly charged ions and for high electron temperatures.
No associations
LandOfFree
Distorted Wave Calculation and Applications 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 Distorted Wave Calculation and Applications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distorted Wave Calculation and Applications will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1767705