We have studied the quantitative morphology and structural pa-rameters of the bright galaxy population in the Nordic Optical Telescope (NOT) sample, which consists of five clusters of galaxies within the redshift range 0.18 ≤z ≤ 0.25, imaged in the central 0.5-2 Mpc in very good seeing conditions. We have obtained that the structural parameters of E/SO galaxies are similar to those showed by galaxies in low redshift clusters. However, the disc scales have a different behaviour. In particular, the scales of the discs of galaxies at medium redshift clusters are statistically different from those located in similar galaxies in the Coma cluster but, the scales of the discs of galaxies in medium redshift clusters are similar to nearby field galaxies. The results suggest that the evolution of the disc component of galaxies in clusters is faster than in field ones. This indicates that spiral galaxies in clusters have suffered a strong evolution in the last 2.5 Gyr. Mechanisms like galaxy harassment showing timescales of 1Gyr could be the responsible of this disc scale evolution.
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机译：我们已经研究了北欧光学望远镜（不）样品中明亮的星系种群的定量形态和结构Pa-rameters，该样品由红移范围内的五个星系组成0.18≤z≤0.25，在中央0.5-2中成像MPC在非常好的见证条件下。我们已经获得了E / SO GALAXIES的结构参数类似于由低吊桥簇中的星系显示的结构参数。但是，光盘缩放具有不同的行为。特别地，在中间红班集群中的星系盘片的尺度与位于彗星簇中的类似星系中的统计学不同，但是，中间红星簇中的星系盘的尺度类似于附近的现场星系。结果表明，集群中星系的光盘分量的演变比现场更快。这表明在最后的2.5 Gyr中，集群中的螺旋星系遭受了强烈的进化。像星系骚扰这样的机制，显示1GYR的时间尺度可能是这种光盘尺度演变的负责。
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