Interstellar masers - The influence of the geometrical shape on the radiation properties

Details Interstellar masers - The influence of the geometrical shape on the radiation properties Interstellar masers - The influence of the geometrical shape on the radiation properties

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981japa....2..187b&link_type=abstract

Journal of Astrophysics and Astronomy, vol. 2, June 1981, p. 187-199.

Astronomy and Astrophysics

Astrophysics

Interstellar Masers, Radiative Transfer, Atmospheric Models, Disks (Shapes), Morphology, Shapes, Spheres, Tubes

Scientific paper

The relation between microwave field minimum and maximum energy density, important in the determination of maser source physical condition and emission spot size, is investigated for three homogeneous maser cloud geometries: a thin tube, a thin disk, and a sphere. An approximate analytical calculation scheme is presented, and radiation properties are found to satisfy transfer and rate equations; supporting the established view that the active medium is 10 to 100 times larger than the interferometer size. It is shown that luminosity is only slightly affected by the shape of their entire region, while the angular variation of the intensity and peak intensity of the rays are strongly conditioned by geometry.

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