Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apjs...39..157s&link_type=abstract
Astrophysical Journal Supplement Series, vol. 39, Feb. 1979, p. 157-174.
Astronomy and Astrophysics
Astronomy
25
H Ii Regions, Hydrogen Recombinations, Line Spectra, Radio Astronomy, Radio Spectra, Electron Density (Concentration), Electron Energy, Graphs (Charts), Ionized Gases, Nebulae, Radiative Recombination, Radio Sources (Astronomy), Stellar Motions, Tables (Data), Thermodynamic Equilibrium
Scientific paper
Hydrogen radio combination lines have been observed toward 35 small (few
arcmin) H II regions with the Arecibo 1000 foot (305 m) telescope.
Twenty-two of these are first detections. A non-LTE analysis is employed
by which physical parameters for the ionized clouds are derived. In
general, the departure from LTE seems small for most H II regions.
Silverglate Peter R.
Terzian Ye.
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