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Fig. 7


Summary of NGC 4414 models. In all panels the vertical dotted line delimits the inner and outer disk. Top three rows, inner disk: open circles indicate the tilted ring parameters derived from a ROTCUR fit with all fit parameters free as described in Sect. 3.1.1. The thick, full lines indicate the final model chosen for the inner disk. In the third row, right-hand panel, the filled circles indicate the resulting final ROTCUR model for the rotation curve of the inner disk. The long-dashed and dotted curves indicate the receding and approaching side rotation curves of the inner disk, respectively. Top three rows, outer disk: the dashed thick lines in the outer disk part of the plots indicates the values chosen for the final TiRiFiC model. In the left-hand panel of the third row the thick long-dashed line indicates the PA distribution for the approaching side, the short-dashed thick line that of the receding side. The thin long- and short-dashed lines show the PA values of the two sides when a ROTCUR fit is made to the velocity field with only PA and Vrot as free parameters. Bottom row: the left-hand panel shows the H i radial surface density distribution. Open squares indicate the approaching side, filled squares the receding side. The right-hand panel in the bottom row shows the approaching and receding sides rotation curves as open and filled squares, respectively. The horizontal line in the outer disk indicates the flat rotation curve assumed in the TiRiFiC modeling.

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