Observations of the two components of the Abell 98 cluster of galaxies

Details Observations of the two components of the Abell 98 cluster of galaxies Observations of the two components of the Abell 98 cluster of galaxies

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...243l.137h&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 243, Feb. 1, 1981, p. L137-L142.

Astronomy and Astrophysics

Astrophysics

37

Astronomical Models, Galactic Clusters, Galactic Evolution, Galactic Structure, X Ray Sources, Bremsstrahlung, Fourier Transformation, Galactic Nuclei, Proportional Counters, X Ray Imagery

Scientific paper

X-ray and optical observations of A98 show that the cluster is composed of two subclusters. From an estimate of the mass and velocity differences, the two components may merge in about a billion years. These data support the hierarchical clustering model in which clusters occur on all size scales, with larger clusters being formed from mergers of smaller ones.

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