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Title: Radio recombination lines from small H II regions

Abstract

Hydrogen radio recombination 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.

Authors:
;
Publication Date:
Research Org.:
National Astronomy and Ionosphere Center, Cornell University, Ithaca, New York
OSTI Identifier:
6271934
Resource Type:
Journal Article
Journal Name:
Astrophys. J., Suppl. Ser.; (United States)
Additional Journal Information:
Journal Volume: 39:2
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; H2 REGIONS; RECOMBINATION; COSMIC RADIO SOURCES; ELECTRON DENSITY; ELECTRON TEMPERATURE; EMISSION SPECTRA; EXPERIMENTAL DATA; HYDROGEN IONS; ISOLATED VALUES; LTE; NEBULAE; RADIOASTRONOMY; RADIOWAVE RADIATION; ASTRONOMY; CHARGED PARTICLES; DATA; DATA FORMS; ELECTROMAGNETIC RADIATION; EQUILIBRIUM; INFORMATION; IONS; NUMERICAL DATA; RADIATIONS; SPECTRA; 640103* - Astrophysics & Cosmology- Quasi-Stellar, Radio, & X-Ray Sources- (-1987)

Citation Formats

Silverglate, P.R., and Terzian, Y. Radio recombination lines from small H II regions. United States: N. p., 1979. Web. doi:10.1086/190569.
Silverglate, P.R., & Terzian, Y. Radio recombination lines from small H II regions. United States. doi:10.1086/190569.
Silverglate, P.R., and Terzian, Y. Thu . "Radio recombination lines from small H II regions". United States. doi:10.1086/190569.
@article{osti_6271934,
title = {Radio recombination lines from small H II regions},
author = {Silverglate, P.R. and Terzian, Y.},
abstractNote = {Hydrogen radio recombination 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.},
doi = {10.1086/190569},
journal = {Astrophys. J., Suppl. Ser.; (United States)},
number = ,
volume = 39:2,
place = {United States},
year = {1979},
month = {2}
}