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A Massive Disk Galaxy at z > 3 along the Line of Sight of QSO 1508+5714*t

机译：沿QSO 1508 + 5714 * t视线的z> 3的海量盘状星系

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摘要

We have obtained deep images in the BVRIJHKs bands of the field centered on QSO 1508+5714 (zem = 4.28) with the Suprime-Cam, FOCAS, and MOIRCS cameras on Subaru telescope. We report here on the detection of a B-dropout galaxy, which is 3.5 north-west of the QSO sightline. A photometric redshift analysis is presented to complement the color selection. Given the photometric properties of this object (M = -22.2, making L≈Li3~f*, placed at its photometric redshift, za3(～1s wel. as n5the Ser)sic i,ndex ) derived from a 2-D imaging decomposition of the HST WFPC2 image taken with the I/ fFilter, t8he ide1ntifie4d system is consistent with a masive disk galaxy at z > 3. If confirmed, it would be one of the most distant massive disk galaxies known so far.
机译：我们已经使用Subaru望远镜上的Suprime-Cam，FOCAS和MOIRCS相机在以QSO 1508 + 5714（zem = 4.28）为中心的BVRIJHK波段中获得了深层图像。我们在此报告检测到B丢失星系的情况，该星系位于QSO视线西北方3.5。提出了光度红移分析以补充颜色选择。给定该物体的光度特性（M = -22.2，使L≈Li3〜f *，置于其光度红移处，由二维成像分解得出的za3（〜1s，优选为n5the Ser）sic i，ndex）。使用I / fFilter拍摄的HST WFPC2图像的z等于z> 3的大型磁盘星系。如果确认，它将是迄今为止已知的最遥远的大型磁盘星系之一。

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