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Article Dans Une Revue Astronomy and Astrophysics - A&A Année : 2011

Red sequence determination of the redshift of the cluster of galaxies JKCS 041: z ~ 2.2

Résumé

This paper aims at robustly determining the redshift of the cluster of galaxies JKCS 041 and at putting constraints on the formation epoch of the color-magnitude sequence in two very high redshift clusters. New deep z' - J data show a clear narrow red sequence that is co-centered with, and similary concentrated on, the extended X-ray emission of the cluster of galaxies JKCS 041. The JKCS 041 red sequence is 0.32 ± 0.06 mag redder in z' - J than the red sequence of the zspec = 1.62 IRC0218A cluster, putting JKCS 041 at z ≫ 1.62 and ruling out z

Dates et versions

hal-03785511 , version 1 (23-09-2022)

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Citer

S. Andreon, Marc Huertas. Red sequence determination of the redshift of the cluster of galaxies JKCS 041: z ~ 2.2. Astronomy and Astrophysics - A&A, 2011, 526, pp.11. ⟨10.1051/0004-6361/201015610⟩. ⟨hal-03785511⟩
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