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Figure 1: B band image of HCG62 with the slit overlayed. The dashed lines overlayed on the slit represent the directions along which we have extracted the light profiles presented in Fig. 5. |
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Figure 2: Observed spectrum of NGC 4778. The main absorption features used for the kinematical analysis are marked. |
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Figure 3:
Top panel - Ellipticity,
position angle (PA) and diskiness for NGC 4778. The solid line indicates ![]() ![]() |
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Figure 4: Mean B-R color profile of NGC 4778. The dashed line indicates the limit of reliability of the photometry. |
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Figure 5: Top panel - 2D fit of NGC 4778 light distribution. The observed light profiles along the major (open circles), and minor axis (asterisk), are compared with those derived by the fit (continuous line). Bottom panel - Residuals between the observed and the fitted light profiles. |
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Figure 6: Top panel - Rotation curve and velocity dispersion profile derived for the whole slit length, which include both galaxies NGC 4778 and NGC 4761 (labelled on the plot as A and C respectively). Bottom panel - Uncalibrated light profile through the slit, which includes both galaxies NGC 4778 and NGC 4761; the dashed lines indicates the region of the spectrum used to derive the kinematics. |
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Figure 7: Rotation curve and velocity dispersion profile derived for NGC 4778 for the whole galaxy extension ( top panel) and for the nuclear regions ( bottom panel) The vertical solid lines marks the regions discussed in the text. |
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Figure 8: Comparison of the uncalibrated light profile along the slit in the NE and SW directions. The data-points were binned to reach a minimum signal-to-noise of 50. |
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