Effect of elastic collisions on the frequency distribution of astrophysical maser radiation

Details Effect of elastic collisions on the frequency distribution of astrophysical maser radiation Effect of elastic collisions on the frequency distribution of astrophysical maser radiation

Feb 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phla..162..137w&link_type=abstract

Physics Letters A, Volume 162, Issue 2, p. 137-143.

Physics

8

Scientific paper

The frequency distribution of astrophysical maser radiation is an importantingredient in analyzing the properties of astrophysical maser sources. The frequency profile of the absorption coefficient is studied analytically and computationally including the effect of elastic collisions. The evolution of the profile is detailedly discussed. Two important features that result from elastic collisions are: (1) The frequency profile of the absorption coefficient in the saturated regime becomes narrower and sharper. (2) Line narrowing continues during early saturation. These may help explain some observed narrow maser features.

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