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UNLENSING MULTIPLE ARCS IN 0024+1654: RECONSTRUCTION OF THE SOURCE IMAGE

机译:在0024 + 1654中发布多个ARCS:重建源图像

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摘要

A unique reconstruction of the image of a high-redshift source galaxy responsible for multiple long arcs in the z = 0.4 cluster 0024+1654 is obtained by inverse lensing. Deep B- and I-band imaging with the Hubble Space Telescope enables high resolution of the arcs due to strong gravitational lensing of the background source. The gravitational lens in the foreground cluster is thus used to obtain a magnified view of the distant source. Four strongly lensed images of the source lead to a unique reconstruction. Each of the long arcs, when unlensed, leads to the same reconstructed source image, exhibiting a beaded, ringlike morphology. The U luminosity of the ring alone is equivalent to that of a normal galaxy. This is likely a galaxy in formation.
机译:通过反光透镜可以获得负责z = 0.4簇0024 + 1654中多个长弧的高红移源星系图像的唯一重建。由于背景源的强大引力作用,使用哈勃太空望远镜进行的深B波段和I波段成像可实现高分辨率的电弧。因此,前景簇中的重力透镜用于获得远方光源的放大视图。源的四个强镜头图像导致独特的重建。每个长弧在不加透镜时会导致相同的重构源图像,呈现出串珠状的环状形态。单独的光环的U光度与正常星系的光度相同。这可能是一个星系形成。

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