6 papers · 1 filter
Weak lensing study of low mass galaxy groups: implications for Omega_m
H. Hoekstra, M. Franx, K. Kuijken +8
We report on the first measurement of the average mass and mass-to-light ratio of galaxy groups by analysing the weak lensing signal induced by these systems. The groups, which hav…
Galaxy Groups at Intermediate Redshift
R. G. Carlberg, H. K. C. Yee, S. L. Morris +5
Galaxy groups likely to be virialized are identified within the CNOC2 intermediate redshift galaxy survey using an iterative method. The number-velocity dispersion relation is in a…
Active Galactic Nuclei in the CNOC2 Field Galaxy Redshift Survey
Patrick B. Hall, H. K. C. Yee, Huan Lin +7
We present a sample of 47 confirmed and 14 candidate Active Galactic Nuclei (AGN) discovered in the Canadian Network for Observational Cosmology field galaxy redshift survey (CNOC2…
Spectroscopic Gravitational Lens Candidates in the CNOC2 Field Galaxy Redshift Survey
Patrick B. Hall, H. K. C. Yee, Huan Lin +7
We present five candidate gravitational lenses discovered spectroscopically in the Canadian Network for Observational Cosmology Field Galaxy Redshift Survey (CNOC2), along with one…
The CNOC2 Field Galaxy Redshift Survey I: The Survey and the Catalog for the Patch CNOC 0223+00
H. K. C. Yee, S. L. Morris, H. Lin +7
The Canadian Network for Observational Cosmology (CNOC2) Field Galaxy Redshift Survey is a spectroscopic/photometric survey of faint galaxies over 1.5 square degrees of sky with a…
The Merger Rate to Redshift One from Kinematic Pairs: Caltech Faint Galaxy Redshift Survey XI
R. G. Carlberg, Judith G. Cohen, D. R. Patton +8
The rate of mass accumulation due to galaxy merging depends on the mass, density, and velocity distribution of galaxies in the near neighborhood of a host galaxy. The fractional lu…