Results from the ESO Distant Cluster Survey

机译：ESO遥远集群调查结果

获取原文

页面导航

摘要
著录项
相似文献
相关主题

摘要

We present results from weak lensing analyses of 20 high-redshift clusters in the ESO Distant Cluster Survey (EDisCS) from both deep optical VLT and HST/ACS imaging We find that the EDisCS sample is composed primarily of clusters that are less massive than those in current X-ray selected samples at similar redshifts, but that all of the fields are likely to contain massive clusters rather than superpositions low mass groups We find good agreement between the weak lensing measurements in the VLT and ACS images. Finally we determine the noise level in the shear measurements for the VLT fields as a function of exposure time and seeing and demonstrate that future ground-based surveys which plan to perform deep optical imaging for use in weak lensing measurements must achieve point-spread functions smaller than a median of 0"6 FWHM.

机译：我们在深度光学VLT和HST / ACS成像中展示了20个高射频集群（ESO远程集群调查（EDISC）中的20个高射频集群的弱镜头分析结果我们发现EDISCS样品主要由群集组成，这些集群比这些簇都要小于当前的X射线选择类似的红移样本，但是所有领域都可能包含大规模集群而不是叠加低质量组，我们在VLT和ACS图像中弱镜头测量之间找到了良好的一致性。最后，我们确定VLT字段的剪切测量中的噪声水平作为曝光时间的函数，并展示并证明了计划执行深光学成像的未来基于光学成像，以便在弱镜头测量中使用，必须实现较小的点传播功能比0“的中位数为0”6 fwhm。

著录项

来源
《International Astronomical Union》|2005年||共6页
会议地点
作者
Douglas Clowe; Peter Schneider; EDisCS Consortium;
展开▼
作者单位

展开▼
会议组织
原文格式 PDF
正文语种
中图分类 P159-532;
关键词

相似文献

外文文献
中文文献
专利

1. Tests of the Las Campanas Distant Cluster Survey from Confirmation Observations for the ESO Distant Cluster Survey* [J] . Anthony H. Gonzalez12, Dennis Zaritsky3, Luc Simard34, The Astrophysical journal . 2008,第2期

机译：ESO远距离聚类调查的确认观察对Las Campanas远距离聚类调查的测试*
2. TESTS OF THE LAS CAMPANAS DISTANT CLUSTER SURVEY FROM CONFIRMATION OBSERVATIONS FOR THE ESO DISTANT CLUSTER SURVEY [J] . ANTHONY H. GONZALEZ, DENNIS ZARITSKY, LUC SIMARD, The Astrophysical journal . 2002,第2期

机译：从ESO远程群集调查的确认观察中进行的LAS CAMPANAS远程群集调查
3. TESTS OF THE LAS CAMPANAS DISTANT CLUSTER SURVEY FROM CONFIRMATION OBSERVATIONS FOR THE ESO DISTANT CLUSTER SURVEY [J] . ANTHONY H. GONZALEZ, DENNIS ZARITSKY, LUC SIMARD, The Astrophysical journal . 2002,第2期

机译：从ESO远程集群调查的确认观察中对LAS CAMPANAS远程集群调查的测试
4. Results from the ESO Distant Cluster Survey [C] . Douglas Clowe, Peter Schneider, EDisCS Consortium International Astronomical Union . 2005

机译：ESO遥远集群调查结果
5. Cluster galaxy evolution with the Las Campanas Distant Cluster Survey. [D] . Nelson, Amy Elizabeth. 2000

机译：Las Campanas远距离星团调查显示星团星系的演化。
6. The ESO Diffuse Interstellar Bands Large Exploration Survey: EDIBLES I. Project description survey sample and quality assessment [O] . Nick L. J. Cox, Jan Cami, Amin Farhang, -1

机译：ESO漫射星际带大型勘探调查：EDIBLES I.项目描述调查样本和质量评估
7. Tests of the Las Campanas Distant Cluster Survey from Confirmation Observations for the ESO Distant Cluster Survey [O] . González, A H, Zaritsky, D, Simard, L C, 2002

机译：从ESO远程聚类调查的确认观察中对Las Campanas远程聚类调查的测试

Results from the ESO Distant Cluster Survey

摘要

著录项

相似文献

相关主题

期刊订阅