Sixteen-Color Photometry of Galaxy Cluster Abell 566

Details Sixteen-Color Photometry of Galaxy Cluster Abell 566 Sixteen-Color Photometry of Galaxy Cluster Abell 566

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003pasj...55..891z&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.55, No.5, pp. 891-899

Astronomy and Astrophysics

Astronomy

5

Galaxies: Clusters: Individual (Abell 566), Galaxies: Photometry

Scientific paper

We present a complete set of 16 color photometric observations in the Beijing-Arizona-Taipei-Connecticut (BATC) filter system for a cluster of galaxy Abell 566 at redshift z ˜ 0.1. From 2k × 2k CCD images, over 10000 objects have been detected in field of 58' × 58' down to V ˜ 20 mag with a good completeness level. By aperture photometric measurements, we obtained spectral energy distributions (SEDs) that cover the wavelengths from 300nm to 1000nm of all of the detected objects, including 561 cluster member candidates selected by the method of photometric redshift. The special location of these galaxies in color-color diagrams show a possibility for our method involving member galaxy selection. From the selected member galaxies, we find that the number density of early-type galaxies is much higher in the central region of the cluster than late-type galaxies.

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