Top: peak radial velocity, | ν | cosi, and FWHM of the velocity components detected along the HH 1042 jet, obtained by means of a multiple Gaussian fit of the [Fe ii] 1643 nm line velocity profile at each spatial pixel (0.2′′) along the jet. The size of the symbols represents the integrated flux of each velocity component. Bottom: position−velocity diagram of the [Fe ii] 1643 nm line in HH 1042. The y-axis corresponds to the absolute value of the radial velocity, in order to show the (a)symmetry between the two lobes. The flux is corrected for extinction and the red lobe (left) is enhanced by a factor of 3, in order to compare the emission patterns of both lobes. The source is located at 0′′ in position space. The letters indicate the knots which were integrated in flux for the kinematics analysis. The size of the circles corresponds to the integrated flux of the knots.
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