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X-ray morphologies of Abell clusters
Journal article   Open access

X-ray morphologies of Abell clusters

S. L. W. Mcmillan, M. P. Kowalski and M. P. Ulmer
The Astrophysical journal. Supplement series, v 70(4), pp 723-730
01 Aug 1989
url
https://doi.org/10.1086/191356View
Published, Version of Record (VoR)Maybe Open Access (Publisher Bronze) Open

Abstract

ASTROPHYSICS
Results are presented for X-ray measurements made with the Einstein Observatory's IPC for a sample of 49 Abell clusters, which were used to determine quantitative measures of two morphological parameters of these clusters, the orientation and ellipticity. Consideration is given to the techniques used for estimating and removing background noise in the images and for determining the variation of these parameters with the flux level of a cluster. It was found that most clusters are clearly flattened; for 20 of these clusters, the orientation was unambiguously determined. A catalog of cluster properties is presented.

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Collaboration types
Domestic collaboration
Web of Science research areas
Astronomy & Astrophysics
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