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CCD Observation of Diffuse Light in the Rich Cluster A2029

Published online by Cambridge University Press:  08 February 2017

S. P. Boughn ,
J. M. Uson  and
J. R. Kuhn
S. P. Boughn
Affiliation:
Haverford College Haverford, PA 19041 USA
J. M. Uson
Affiliation:
National Radio Astronomy Observatory P.O. Box 0 Socorro, NM 87801 USA
J. R. Kuhn
Affiliation:
Michigan State University East Lansing, MI 48824 USA

Abstract

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By mosaicking many CCD frames together, we have constructed a large-scale (~ 1/2°) R-band map of the cD cluster Abell 2029. The map was flat from one edge to the other to about 0.05% of the night sky, which corresponds to vR ~30 mag arcsec2. Using a novel technique involving the pixel distribution function, we measured diffuse light in the cluster out to 450″ (500 h−1 Kpc) along the minor axis of the cluster. In the elliptical region from minor radius 100″ to minor radius 300″, the diffuse light corresponds to roughly 8% of the total cluster light. Data in other optical bands and on other clusters are in the process of being reduced. The applicability of the above technique to measurements of the fluctuations in the extragalactic background light (EBL) is discussed.

Type
IV. Extragalactic Background Radiation and Cosmology
Information
Symposium - International Astronomical Union , Volume 139: The Galactic and Extragalactic Background Radiation , 1990 , pp. 357 - 363
Copyright
Copyright © Kluwer 1990 

References

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