Published August 1989
| Version v1
Journal article
X-ray morphologies of Abell clusters
- 1. Northwestern Univ., Evanston, IL (USA)
- 2. E. O. Hulburt Center for Space Research, Washington, DC (USA)
- 3. Drexel Univ., Philadelphia, PA (USA)
Description
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. 17 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal, Supplement Series
- Journal Volume
- 70
- Series
- Astrophys. J., Suppl. Ser.
- Journal Page Range
- 723-730
- ISSN
- 0067-0049
- CODEN
- APJSA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21022025
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- GALAXY CLUSTERS; IMAGES; INDEXES; MORPHOLOGICAL CHANGES; VARIATIONS; X RADIATION
- Descriptors DEC
- DOCUMENT TYPES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; RADIATIONS