Figure 1: Solid line: Effelsberg 100-m spectrum of the central position. Dashed line: spectrum of the VLA data. Dotted line: 3 noise level of the 100-m spectrum. Heliocentric velocities are given relative to the systemic velocity of NGC 4388 ( km s-1). | |
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Figure 2: Solid lines: Effelsberg 100-m spectra of the four off-center positions. Their locations with respect to the galaxy center are marked on top of each panel. Dashed line: synthesized VLA spectra which only show H I disk emission. Dotted line: 3 noise levels of the 100-m spectra. Velocities are given relative to the systemic velocity of NGC 4388. | |
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Figure 3: Evolution of the model stellar and gas disk. The disk is seen face-on and rotates counter-clockwise. The arrow indicates the direction of ram pressure, i.e. it is opposite to the galaxy's velocity vector. The size of the arrow is proportional to . The galaxy passes the cluster core at 0 Myr. The time to the core passage is marked at the top of the panels. (An animation of the temporal evolution is available at http://www.edpsciences.org). | |
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Figure 4: Evolution of the model stellar and gas disk. The position and inclination angle of NGC 4388 ( , ) are used. The arrow indicates the direction of ram pressure, i.e. it is opposite to the galaxy's velocity vector. The size of the arrow is proportional to . The galaxy passes the cluster core at 0 Myr. The time to the core passage is marked at the top of the panels. (An animation of the temporal evolution is available at http://www.edpsciences.org). | |
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Figure 5: ISM radial velocity as a function of the projected distance to the galaxy center. | |
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Figure 6: Left panel: stellar distribution as contours, gas distribution as greyscales. Only gas with a local density greater than 30 cm-3 is shown. For clarity the greyscales are inverted, i.e. dark regions correspond to low column density gas. Right panel: model velocity field. Dashed lines mark positive, solid lines negative velocity contours. The velocities range between -200 km s-1 and 260 km s-1. The contour stepsize is 20 km s-1. | |
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Figure 7: Left panel: model 100-m spectrum at the central (C) position. Right panel: model 100-m spectrum at the northeastern (NE) position. Velocities are given relative to the systemic velocity of NGC 4388. | |
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