ESO Imaging Survey V. Cluster Search using Color Data

L. F. Olsen; M. Scodeggio; L. da Costa; R. Slijkhuis; C. Benoist; E. Bertin; E. Deul; T. Erben; M. D. Guarnieri; R. Hook; M. Nonino; I. Prandoni; A. Wicenec; S. Zaggia

arXiv · astro-ph/9807156

ESO Imaging Survey V. Cluster Search using Color Data

L. F. Olsen·M. Scodeggio·L. da Costa·R. Slijkhuis·C. Benoist·E. Bertin·E. Deul·T. Erben·M. D. Guarnieri·R. Hook·M. Nonino·I. Prandoni·A. Wicenec·S. Zaggia

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Abstract

This paper presents 19 additional candidate clusters detected using the galaxy catalog extracted from the I-band images taken for the ESO Imaging Survey (EIS). The candidates are found over a region of 1.1 square degrees, located near the South Galactic Pole. Combined with the sample reported earlier, the number of candidates in the Southern Galactic Cap is now 54 over a total area of 3.6 square degrees. Images in V band are also available over 2.7 square degrees, and galaxy catalogs extracted from them over a uniform area of 2 square degrees have been used to further explore the reality of the I cluster candidates. Nearly all the I candidates with estimated redshifts <~ 0.5 are also identified in V. At higher redshifts, only rich candidates are detected in both bands.

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L. F. Olsen, M. Scodeggio, L. da Costa, R. Slijkhuis, C. Benoist, E. Bertin, E. Deul, T. Erben, M. D. Guarnieri, R. Hook, M. Nonino, I. Prandoni, A. Wicenec, S. Zaggia. 1998-07-15. ESO Imaging Survey V. Cluster Search using Color Data. https://arxiv.org/abs/astro-ph/9807156

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