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The discovery of a massive supercluster at.
- Source :
- Monthly Notices of the Royal Astronomical Society; 8/21/2007, Vol. 379 Issue 4, p1343-1351, 9p, 3 Charts, 5 Graphs
- Publication Year :
- 2007
-
Abstract
- We analyse the first publicly released deep field of the UK Infrared Deep Sky Survey (UKIDSS) Deep eXtragalactic Survey to identify candidate galaxy overdensities at across ∼1 deg<superscript>2</superscript> in the ELAIS-N1 field. Using and colours, we identify and spectroscopically follow up five candidate structures with Gemini/Gemini Multi-Object Spectrograph and confirm that they are all true overdensities with between five and 19 members each. Surprisingly, all five structures lie in a narrow redshift range at , although they are spread across 30 Mpc on the sky. We also find a more distant overdensity at in one of the spectroscopic survey regions. These five overdense regions lying in a narrow redshift range indicate the presence of a supercluster in this field and by comparing with mock cluster catalogues from N-body simulations we discuss the likely properties of this structure. Overall, we show that the properties of this supercluster are similar to the well-studied Shapley and Hercules superclusters at lower redshift. [ABSTRACT FROM AUTHOR]
- Subjects :
- SUPERCLUSTERS
STAR clusters
REDSHIFT
SPECTRUM analysis
SPECTROGRAPHS
SURVEYS
Subjects
Details
- Language :
- English
- ISSN :
- 00358711
- Volume :
- 379
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Monthly Notices of the Royal Astronomical Society
- Publication Type :
- Academic Journal
- Accession number :
- 26100455
- Full Text :
- https://doi.org/10.1111/j.1365-2966.2007.12037.x