The bright H2O maser source in Orion A

Details The bright H2O maser source in Orion A The bright H2O maser source in Orion A

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pazh....7..100m&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, Feb. 1981, p. 100-105.) Soviet Astronomy Letters, vol. 7, Jan.-Feb. 1981, p. 54-57.

Astronomy and Astrophysics

Astronomy

21

Hydrogen Clouds, Interstellar Masers, Molecular Clouds, Radio Sources (Astronomy), Water Masers, Brightness Temperature, Fine Structure, Line Spectra

Scientific paper

The fine structure in the bright H2O maser source in Orion A is analyzed. The maser is found to be unsaturated or partially saturated. The H2O line profile is asymmetrical with a complex structure; individual features represent compact source components distributed over 0.0013 arcsec or 0.6 AU across. The low and high frequency parts of the line originate in larger-size sources. The high brightness temperature (not less than 10 to the 16th K) of the compact components is probably due to coherent emission.

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