Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...266..263g&link_type=abstract
Astrophysical Journal, Part 1, vol. 266, Mar. 1, 1983, p. 263-270. Research supported by the Consejo Nacional de Ciencia y Tecn
Astronomy and Astrophysics
Astronomy
43
Electron Energy, Energy Distribution, H Ii Regions, Milky Way Galaxy, Nebulae, Radio Astronomy, Abundance, Atomic Collisions, Electron Density (Concentration), Line Spectra, Recombination Reactions
Scientific paper
The authors observed the H125α, He125α, and H158β radio recombination lines at 9 cm from 23 low-density H II regions, mainly Sharpless regions. The electron temperature of these H II regions, derived from the line-to-continuum ratio technique, shows a gradient with galactocentric distance, very similar to those determined from studies of high-density H II regions. A gradient of 440 ± 50 K kpc-1 is found for observations of H II regions between 3.6 and 12.6 kpc. This gradient is most probably due to an increase in the heavy-element content of the H II regions with decreasing galactocentric distance. The low-density H II regions have electron temperatures systematically cooler than those of high-density H II regions by about 1000K.
Garay Guido
Rodriguez Luis F.
No associations
LandOfFree
The galactic gradient in electron temperature from observations of low-density 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 The galactic gradient in electron temperature from observations of low-density H II regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The galactic gradient in electron temperature from observations of low-density H II regions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1465817