Cl 1103.7–1245 atz= 0.96: the highest redshift galaxy cluster in the EDisCS survey
نویسندگان
چکیده
منابع مشابه
The intermediate - redshift galaxy cluster CL 0048 - 2942 . Stellar populations
We present a detailed study of the cluster CL 0048-2942, located at z ∼ 0.64, based on a photometric and spectro-scopic catalogue of 54 galaxies in a 5 × 5 arcmin 2 region centred in that cluster. Of these, 23 galaxies were found to belong to the cluster. Based on this sample, the line-of-sight velocity dispersion of the cluster is approximately 680 ± 140 km/s. We have performed stellar populat...
متن کاملThe Highest Redshift Radio Galaxy Known in the Southern Hemisphere
We present the discovery of a z = 4.13 galaxy TN J1338-1942, the most distant radio galaxy in the southern hemisphere known to date. The source was selected from a sample of Ultra Steep Spectrum (USS; α < −1.3; S ∝ ν) radio sources using the Texas and NVSS catalogs. The discovery spectrum, obtained with the ESO 3.6m telescope, shows bright extended Ly-α emission. The radio source has a very asy...
متن کاملGalaxy Clustering in the CNOC2 Redshift Survey
The correlation evolution of a high luminosity subsample of the CNOC2 redshift survey is examined. The sample is restricted to galaxies for which the k corrected and evolution corrected R luminosity is MR ≤ −20 mag, where M∗ ≃ −20.3 mag. This subsample contains about 2300 galaxies. In consort with 13000 galaxies in a similarly defined low redshift sample from the Las Campanas Redshift survey we...
متن کاملParameterisation of Galaxy Spectra in the 2dF Galaxy Redshift Survey
The 2dF Galaxy Redshift Survey has already yielded over 135,000 galaxy spectra (out of the planned 250,000). We present a method for the parameterisation of galaxy spectra in the 2dF and other large redshift surveys using a new continuous parameter η = 0.44pc1 − pc2, based on a Principal Components Analysis (where pc1 and pc2 are the projections onto the first and second principal components re...
متن کاملThe 2dF Galaxy Redshift Survey: the clustering of galaxy groups
We measure the clustering of galaxy groups in the 2dFGRS Percolation-Inferred Galaxy Group (2PIGG) catalogue. The 2PIGG sample has 28 877 groups with at least two members. The clustering amplitude of the full 2PIGG catalogue is weaker than that of 2dFGRS galaxies, in agreement with theoretical predictions. We have subdivided the 2PIGG catalogue into samples that span a factor of ≈ 25 in median ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2012
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201219397