Near-IR imaging of moderate redshift galaxy clusters

Details Near-IR imaging of moderate redshift galaxy clusters Near-IR imaging of moderate redshift galaxy clusters

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993egte.conf...74s&link_type=abstract

In NASA. Ames Research Center, The Evolution of Galaxies and Their Environment p 74-75 (SEE N93-26706 10-90)

Astronomy and Astrophysics

Astronomy

Astronomical Models, Astronomical Photometry, Astronomical Spectroscopy, Galactic Clusters, Infrared Imagery, Near Infrared Radiation, Optical Measurement, Red Shift, Stellar Color, Stellar Spectra, Cameras, Stellar Magnitude

Scientific paper

We have obtained near-IR imaging of 3 moderate-z clusters on the 1.3 m at KPNO with SQIID, a new camera offering wide-field (5.5 arcmin) simultaneous JHK band imaging. Our photometry on a sample of approximately 100 likely member galaxies in one of the clusters, Abell 370 at z = 0.37, shows that we can obtain magnitudes good to 20 percent down to K = 18, considerably below the estimated K* = 16.5 at this redshift. These data indicate that there are no systematic problems in obtaining photometry at faint levels with SQIID. With the development of larger arrays, the field is open to progress. The resulting J, H, and K data for three clusters are combined with previously obtained multiband optical photometry. We present an investigation of the spectral properties and evolution of the dominant cold stellar populations by comparing optical-to-IR colors and color-magnitude diagrams to predictions from population synthesis models and galaxy spectral evolution codes.

Affiliated with

Also associated with

No associations

Rating

Near-IR imaging of moderate redshift galaxy clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Near-IR imaging of moderate redshift galaxy clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near-IR imaging of moderate redshift galaxy clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1259400