Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ipesprept.....s&link_type=abstract
M.S. Thesis Instituto de Pesquisas Espaciais, Sao Jose dos Campos (Brazil).
Astronomy and Astrophysics
Astronomy
Molecular Spectra, Rotational Spectra, Southern Hemisphere, Star Formation, Temporal Distribution, Water Masers, Annual Variations, Maser Outputs, Maser Pumping, Radiation Distribution, Radio Astronomy, Radio Sources (Astronomy)
Scientific paper
A brief review is presented of radiation maser molecules, their observational characteristics and their importance to astrophysics. The molecular rotational spectra was analyzed and the basic equations of the maser theory was developed. In the water vapor maser monitoring program associated with regions of star formation at the Itapetinga Radio Observatory (ROI), the sources Orion A, G331.5-0.1 and GGD25 (NGC6334) was observed almost monthly from December 1980 to December 1986. The temporal variability of the intensity obtained from these masers had time scales 10(6) to 10(7) s providing rigid constraints to the possible pumping mechanisms. As a result of this monitoring program, several conclusions can be obtained depending of the evolutionary state and the dynamics of the sources.
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