The angular dimensions of extragalactic radio sources |
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| Authors: | Joel C Carvalho |
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| Institution: | (1) Departmento de Física Teórica e Experimental, Campus Universitário, UFRN, NATAL, RN, Brasil |
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| Abstract: | The angular dimensions of compact components of extragalactic radio sources are calculated theoretically on three hypotheses: (a) magnetic field and relativistic particles energy equipartition; (b) equilibrium between synchrotron and Compton losses; (c) radiative lifetime of the same order as the source's light-travel time. Using angular measurements of 73 radio components, divided into two groups (multicomponent and single-component sources), a correcting formulae is derived to reduce the theoretical values to the observed values.This work was partially supported by the Brasilian research agency CNPq. |
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