Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26as..135..359c&link_type=abstract
Astronomy and Astrophysics Supplement, v.135, p.359-370
Astronomy and Astrophysics
Astrophysics
16
Atomic Data, Line: Formation, Line: Profiles, \Ion{H}{Ii} Regions, Planetary Nebulae: General
Scientific paper
Emissivities have been calculated for fine-structure components of selected UV and optical recombination lines of H I and He Ii. Results are given for a range of electron temperatures and densities, and in Cases A and B of te[Baker & Menzel (1938]{baker}). Relative intensities, wavelengths and velocity shifts of the fine-structure components are tabulated. Applications to the spectra of gaseous nebulae are discussed. Depending on the temperature, density and Case, the centres of unresolved lines can shift by up to 0.9 km s(-1) for H I and 3.3 km s(-1) for He Ii. A new calibration of the Hα -[N Ii] method for determining electron temperatures is given. All tables are also available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html
Clegg Robin E. S.
Kisielius R.
Miller Samantha
Storey Peter J.
No associations
LandOfFree
Recombination line intensities for hydrogenic ions: The fine-structure components of H I and He Ii 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 Recombination line intensities for hydrogenic ions: The fine-structure components of H I and He Ii, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recombination line intensities for hydrogenic ions: The fine-structure components of H I and He Ii will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1442627