The Distribution of Lyα-emitting Galaxies at z=2.38. II. Spectroscopy
The Distribution of Lyα-emitting Galaxies at z=2.38. II. Spectroscopy
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DOI：
10.1086/423417
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发表时间：
2003-11
期刊：
影响因子：
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通讯作者：
P. Francis;P. Palunas;H. Teplitz;G. Williger;B. Woodgate
中科院分区：
文献类型：
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作者：
P. Francis;P. Palunas;H. Teplitz;G. Williger;B. Woodgate
在本系列的第一篇论文中，我们发现了一个80 Mpc的同向运动的候选Lyα发射星系，其红移为2.38。在本文中，我们提出了光谱的37个星系候选人。我们的光谱达到了5.0 × 10-17尔格cm-2 s-1 arcsec-2的表面亮度极限。在达到这一极限的14个候选星系中，有12个被证实是处于暗条红移的Lyα发射星系。我们还获得了6个较低表面亮度候选者的光谱确认，所有这些候选者都位于暗条红移处。此外，我们确定在z = 1.65的类星体的前景集群。
In Paper 1 of this series we identified an 80 comoving Mpc filament of candidate Lyα-emitting galaxies at redshift 2.38. In this paper we present spectroscopy of the 37 galaxy candidates. Our spectroscopy reached a surface brightness limit of 5.0 × 10-17 ergs cm-2 s-1 arcsec-2. Of the 14 candidates down to this limit, 12 were confirmed to be Lyα-emitting galaxies at the filament redshift. We also obtained spectral confirmation for six of the lower surface brightness candidates, all of which also lay at the filament redshift. In addition, we identify a foreground cluster of QSOs at z = 1.65.