A wide-field spectroscopic survey of the cluster of galaxies cl0024+1654: I. The catalogue
A wide-field spectroscopic survey of the cluster of galaxies cl0024+1654: I. The catalogue
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星系团 cl0024 1654 的宽视场光谱巡天：I. 目录
DOI：
10.1051/0004-6361:20010398
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发表时间：
2001
影响因子：
6.5
通讯作者：
J. Cuillandre
中科院分区：
文献类型：
--
作者：
O. Czoske;J. Kneib;G. Soucail;T. Bridges;Y. Mellier;J. Cuillandre
我们展示了透镜星团 Cl0024+1654 在 $z\!=\!0.395$ 处的宽视场 CFHT/WHT 光谱巡天目录。该目录包含 618 个新光谱，其中 581 个已识别出红移。添加文献中提供的红移，最终目录包含 687 个天体的数据，其中 650 个天体的红移已被识别。 295 个星系的红移范围为 0.37 美元！ V 幅度和 $V\!-\!I$ 颜色，以及多条线的等效宽度。除了Cl0024+1654星团本身之外，在红移空间中还发现了另外三个结构：$z\!=\!0.38$处的一组星系，位于Cl0024+1654的前面并可能与其相互作用，$z\!\sim\!0.495$处的一对紧密的星系团以及$z\!\sim\!0.18$处的超密度星系，其中没有明显的中心。光谱目录将用于追踪Cl0024+1654星团的三维结构，并研究该星团及其环境中星系的物理特性。
We present the catalogue of a wide-field CFHT/WHT spectroscopic survey of the lensing cluster Cl0024+1654 at $z\!=\!0.395$. This catalogue contains 618 new spectra, of which 581 have identified redshifts. Adding redshifts available from the literature, the final catalogue contains data for 687 objects with redshifts identified for 650 of them. 295 galaxies have redshifts in the range $0.37\! V magnitude and $V\!-\!I$ colour, as well as the equivalent widths for a number of lines. Apart from the cluster Cl0024+1654 itself, three other structures are identified in redshift space: a group of galaxies at $z\!=\!0.38$, just in front of Cl0024+1654 and probably interacting with it, a close pair of groups of galaxies at $z\!\sim\!0.495$ and an overdensity of galaxies at $z\!\sim\!0.18$ with no obvious centre. The spectroscopic catalogue will be used to trace the three-dimensional structure of the cluster Cl0024+1654 as well as study the physical properties of the galaxies in the cluster and in its environment.