PLANETARY NEBULAE II ELECTRON TEMPERATURES AND ELECTRON DENSITIES
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UNAM, Instituto de Astronomía, CD MEXICO, DF, MEX
Abstract
The electron temperature is obtained for thirteen planetary nebulae by means of forbidden lines of oxygen doubly ionized and nitrogen singly ionized. These temperatures range from 9000 to 15300°K. From the ratio of the Balmer continuum to the Balmer emiss