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Clustering of Red Galaxies Near a Radio-Loud Quasar at z = 1.086

Published online by Cambridge University Press:  25 May 2016

I. Tanaka ,
T. Yamada ,
A. Aragón-Salamanca ,
T. Kodama ,
K. Ohta  and
N. Arimoto
I. Tanaka
Affiliation:
Astronomical Institute, Tohoku University, Aoba-ku, Sendai 980-77, Japan
T. Yamada
Affiliation:
Astronomical Institute, Tohoku University, Aoba-ku, Sendai 980-77, Japan
A. Aragón-Salamanca
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge, CB3 0HA, UK
T. Kodama
Affiliation:
Institute of Astronomy, Madingley Road, Cambridge, CB3 0HA, UK
K. Ohta
Affiliation:
Department of Astronomy, Kyoto University, Kyoto, 606-01, Japan
N. Arimoto
Affiliation:
Institute of Astronomy, University of Tokyo, Mitaka, Tokyo 181, Japan

Extract

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We investigated the environment of the radio-loud quasar 1335.8+2834 at z = 1.086 where an excess surface number density of galaxies was reported by Huthings et al. (1993). By obtaining near-infrared and new deep optical images of the field, we found a clustering of objects with very red optical-NIR color, 4 < R - K < 6 and 3 < I - K < 5 near the quasar. The colors and magnitude of the reddest objects are consistent with those predicted for old (2–4 Gyr) passively evolving elliptical galaxies at z = 1.1.

Type
Deep Fields & Evolution
Information
Symposium - International Astronomical Union , Volume 186: Galaxy Interactions at High and Low Redshift , 1999 , pp. 487
Copyright
Copyright © Kluwer 1999 

References

Hutchings, J. B., Crampton, D., & Persram, D. 1993, AJ, 106, 1324 Google Scholar
Yamada, T., Tanaka, I.N., Aragón-Salamanca, A., Kodama, T., Ohta, K., & Arimoto, N. 1992, ApJ, 487, L125 Google Scholar