Using The GR Model To Study The AGN Spectra

Astronomy and Astrophysics – Astronomy

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According to the GR model, the Broad Absorption Line Region (BALR), lie in a disk around the quasar and is composed of a number of successive independent absorbing density regions that have different apparent rotational and radial velocities. By fitting the observed absorption lines with GR model, we can calculate some basic kinematical pa- rameters of BALR, such as the random, rotational and radial velocities. Here, fitting with the GR model the C IV resonance lines in the spectra of several HiBAL QSOs, taken with HST, we calculate the values of the kinematical parameters of the respective density regions. Moreover, using the obtained parameters from the best fit, we discuss the general characteristics of the regions which create the studied C IV lines.

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