A theoretical study of the radio recombination line and continuum emission from compact inhomogeneous H II regions

Details A theoretical study of the radio recombination line and continuum emission from compact inhomogeneous H II regions A theoretical study of the radio recombination line and continuum emission from compact inhomogeneous H II regions

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apjs...39..405v&link_type=abstract

Astrophysical Journal Supplement Series, vol. 39, Mar. 1979, p. 405-428. Research supported by the National Research Council of

Astronomy and Astrophysics

Astronomy

28

Astronomical Models, Continuous Spectra, H Ii Regions, H Lines, Nebulae, Radio Astronomy, Recombination Reactions, Astronomical Spectroscopy, Electron Energy, Emission Spectra, Helium, Inhomogeneity, Planetary Nebulae, Radiative Transfer, Radio Sources (Astronomy)

Scientific paper

We have developed a numerical code for the calculation of continuum and recombination line emission from spherically symmetric H II regions with radial variations in electron density, temperature, velocity, and turbulence, using the full non-LTE recombination line theory, including the effects of inelastic electron collisions (pressure broadening). The code is used to study the effects of radial variation of physical parameters on line profiles, to calculate the effects of a uniform brightness background on the line emission from an H II region, and to compare H and He lines in a model nebula. Analytical treatment of a uniform slab is used to find functional relations between line profiles and physical parameters in order to understand the results of the numerical calculations. Application of the code to published data on NGC 7027 leads to the determination of the density gradient in the shell of the planetary nebula.

Affiliated with

Also associated with

No associations

Rating

A theoretical study of the radio recombination line and continuum emission from compact inhomogeneous H II regions 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 A theoretical study of the radio recombination line and continuum emission from compact inhomogeneous H II regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A theoretical study of the radio recombination line and continuum emission from compact inhomogeneous H II regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1649203