SIMBAD references

2000ApJ...531..684B - Astrophys. J., 531, 684-692 (2000/March-2)

Ultraviolet imaging of the galaxy cluster CL 0939+4713 (Abell 851) at z=0.41.

BUSON L.M., BERTOLA F., CAPPELLARI M., CHIOSI C., DRESSLER A. and OEMLER A.Jr

Abstract (from CDS):

The first UV F300W and F218W WFPC2 observations of the rich galaxy cluster CL 0939+4713 at z=0.41 are presented and discussed. UV/optical two-color and color-magnitude diagrams of the sources detected in the F300W waveband are constructed. Thanks to preexisting Hubble Space Telescope (HST) optical images of the same field, a morphological classification for the majority of these objects is also provided. Moreover, taking advantage of recent redshift surveys along the CL 0939+4713 line of sight, separate diagrams comparing the properties of galaxies belonging to the cluster and to its close projected field are presented. Possible evolutionary effects in the UV from z∼0.4 to the present time are investigated by comparing the rest-frame (mid-UV/optical) colors of galaxies in CL 0939+4713 with balloon-borne data of the Coma Cluster, as well as by resorting to suitable galaxy evolution models. Finally, current attempts to constrain the epoch of the UV-upturn onset in evolved populations by means of HST UV observations are discussed.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: individual (Abell 851) - Ultraviolet: Galaxies

Nomenclature: Table 1: [BBC2000] NN (Nos 1-60).

Status at CDS:  

Simbad objects: 52

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