The CNOC2 Field Galaxy Redshift Survey
نویسندگان
چکیده
B y R.G. Carlberg1,5,6, H.K.C. Yee1,6, S.L. Morris2,6, H. Lin1,6, M. Sawicki1,6, G. Wirth3,6, D. Patton3,6, C.W. Shepherd1, E. Ellingson4,6, D. Schade2,6, C.J. Pritchet3, & F.D.A. Hartwick3 1Department of Astronomy, University of Toronto, 2Dominion Astrophysical Observatory, Herzberg Institute of Astrophysics, National Research Council of Canada, 3Department of Physics & Astronomy, University of Victoria, 4Center for Astrophysics & Space Astronomy, University of Colorado, 5Observatories of the Carnegie Institution of Washington, 6Visiting Astronomers, Canada–France–Hawaii Telescope, which is operated by the National Research Council of Canada, le Centre National de Recherche Scientifique, and the University of Hawaii.
منابع مشابه
Spectroscopic Gravitational Lens Candidates in the CNOC2 Field Galaxy Redshift Survey
We present five candidate gravitational lenses discovered spectroscopically in the Canadian Network for Observational Cosmology Field Galaxy Redshift Survey (CNOC2), along with one found in followup observations. Each has a secure redshift based on several features, plus a discrepant emission line which does not match any known or plausible feature and is visible in multiple direct spectral ima...
متن کاملar X iv : a st ro - p h / 97 12 24 4 v 1 1 8 D ec 1 99 7 Results on Galaxy Evolution from the CNOC 2 Field Galaxy Redshift Survey
The CNOC2 Field Galaxy Redshift Survey presently contains some 5000 galaxy redshifts, plus extensive UBgRI photometry, and is the largest galaxy sample at moderate redshifts 0.1 < z < 0.6. Here we present some preliminary results on the galaxy luminosity function (LF) and its redshift evolution, using a sample of R < 21.5 CNOC2 galaxies, subdivided into early, intermediate, and late types based...
متن کاملar X iv : a st ro - p h / 98 05 13 1 v 1 1 1 M ay 1 99 8 The CNOC 2 Field Galaxy Redshift Survey
The CNOC2 field galaxy redshift survey (hereafter CNOC2) is designed to provide measurements of the evolution of galaxies and their clustering over the redshift range 0 to 0.7. The sample is spread over four sky patches with a total area of about 1.5 square degrees. Here we report preliminary results based on two of the sky patches, and the redshift range of 0.15 to 0.55. We find that galaxy ev...
متن کاملThe Cnoc2 Sample of Intermediate Redshift Galaxy Groups -the Powerhouse of Galaxy Evolution
The evolution of galaxies in groups may have important implications for the global evolution of star formation rate in the Universe, since many processes which operate in groups may suppress star formation, and the fraction of galaxies bound in groups at the present day is as high as ∼60%. We present an analysis of our sample of 0.3≤z≤0.55 groups, selected from the CNOC2 redshift survey and sup...
متن کاملar X iv : a st ro - p h / 06 11 62 5 v 1 20 N ov 2 00 6 A possible dearth of hot gas in galaxy groups at intermediate redshift
We examine the X–ray luminosity of galaxy groups in the CNOC2 survey, at redshifts 0.1 < z < 0.6. Previous work examining the gravitational lensing signal of the CNOC2 groups has shown that they are likely to be genuine, gravitationally bound objects. Of the 21 groups in the field of view of the EPIC–PN camera on XMM–Newton, not one was visible in over 100 ksec of observation, even though three...
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...
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