RMxAA

Revista Mexicana de Astronomía y Astrofísica

ISSN: 3061-8649
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Keywords

Galaxy-center: H II Regions
Galactic Center: Recombination Lines
Galactic Center: H II Regions

How to Cite

Research note: β and α recombination lines from a region around the Galactic center. (1995). Revista Mexicana De Astronomía Y Astrofísica, 31(1), 11-13. https://astronomia.unam.mx/journals/rmxaa/article/view/1995rmxaa..31...11a

Abstract

H159α (ν = 1620.672 MHz) and H200β (ν = 1619.690 MHz) recombination line observations of nine positions around the Galactic center region (separated by 0.5° from each other) were made with the 30-m antenna of the Instituto Argentino de Radioastronomía. The observations were made with the purpose of checking the departure from the local thermodynamic equilibrium (LTE) conditions in this region. Only in two positions was the H200β line detected above the noise-level. The ratio P(H200β)/P(H159α) was determined for these two positions, in order to check the departure from LTE conditions.
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