Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...329..792m&link_type=abstract
Astronomy and Astrophysics, v.329, p.792-798 (1998)
Astronomy and Astrophysics
Astrophysics
1
Lines: Profiles, Atomic Processes
Scientific paper
The quantum unified theory of Stark broadening (Tran Minh et al. 1975, Feautrier et al. 1976) is used to study the density effects on the electronic contribution to the hydrogen Lyman alpha lineshape. The contribution of the first angular momenta to the total profile is obtained by an extrapolation method, and the results agree with other approaches. The comparison made with Vidal et al. (1973) shows a good agreement; and the electronic profile is found to be linear in density for | Delta lambda right | greater than 8 Angstroms for densities below 10(17) cm(-3) , while the density dependence becomes more complex for | Delta lambda right | less than 8 Angstroms. The wing profiles are calculated at various temperatures scaling from 2500 to 40000K and a polynomial fit of these profiles is given.
No associations
LandOfFree
Density effects on the electronic contribution to hydrogen Lyman alpha Stark profiles 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 Density effects on the electronic contribution to hydrogen Lyman alpha Stark profiles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Density effects on the electronic contribution to hydrogen Lyman alpha Stark profiles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1650536