Radio Galaxy–selected Clusters at High Redshift and Associated Extremely Red Object Overdensities
نویسندگان
چکیده
منابع مشابه
Radio Galaxy Selected Clusters at High Redshift and Associated Ero Overdensities
Galaxy clusters at high redshift present a superb opportunity to study galaxy evolution, with large galaxy samples at fixed distances. Several lines of evidence point towards large formation redshifts and passive evolution for cluster ellipticals. At redshifts larger than z ∼ 0.8, this picture rests on data from only a handful of rich clusters. We have observed four potential clusters to sample...
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We have examined the occurrence of Extremely Red Objects (EROs) in the fields of 13 luminous quasars (11 radio-loud and two radio-quiet) at 1.8 < z < 3.0. The average surface density of Ks ≤ 19 mag EROs is two-three times higher than in large, random-field surveys, and the excess is significant at the ≈ 3σ level even after taking into account that the ERO distribution is highly inhomogeneous. T...
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We have examined the occurrence of extremely red objects (EROs) in the fields of 13 luminous quasars (11 radio-loud and two radio-quiet) at 1.8 < z < 3.0. The average surface density of Ks 19 mag EROs is 2–3 times higher than in large, random-field surveys, and the excess is significant at the 3 level even after taking into account that the ERO distribution is highly inhomogeneous. This is the ...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2000
ISSN: 0004-6256
DOI: 10.1086/301579