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Fig. 2

image

Examples of the best Gaussian fit of one epoch Hα (upper panel) and Hβ line (bottom panel). Below the observed spectrum (dots), model (solid line), and residual (thin solid line), the Gaussian components are given, where broad components are denoted with dashed line and narrow components with double dashed line. The thick dashed line reproduce the modeled broad component of the fitted Balmer line.

This figure is made of several images, please see below:

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