NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-07-19 T03:52:19 PDT
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For refcode 1991MNRAS.250..607P:
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Copyright by Royal Astronomical Society. 1991MNRAS.250..607P Morphological evolution of clusters F. R. Pearce and P. A. Thomas Astronomy Centre, Sussex University, Falmer, Brighton BN1 9QH Accepted 1991 January 23. Received 1991 January 14; in original form 1990 November 28 SUMMARY Recently Edge et al. have shown evidence for an evolution in the luminosity function of X-ray clusters at low redshift. we show that this can be explained as a transition from high Bautz-Morgan type clusters to low Bautz-Morgan type (with a dominant central galaxy). This interpretation is supported by the, albeit incomplete, data in cluster catalogues. We show that different Bautz-Morgan types lie in different regions of the X-ray luminosity versus temperature diagram and suggest physical explanations for this distinction. High Bautz-Morgan type clusters seem to obey the constant, or maximum, core radius relation suggested by Edge et al. Low Bautz-Morgan types may have a constant, or maximum, core density. Alternatively the central galaxy halo may boost the X-ray flux.
Retrieve 55 NED objects in this reference.
Please click here for ADS abstract

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