Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234l..21j&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 234, Nov. 15, 1979, p. L21-L25.
Astronomy and Astrophysics
Astrophysics
150
Galactic Clusters, Galactic Evolution, Galactic Structure, X Ray Sources, Emission Spectra, Galactic Radiation, Imaging Techniques, Proportional Counters, Spectrum Analysis, Spiral Galaxies, Temperature Measurement, Velocity Distribution
Scientific paper
Observations of the structure of the X-ray emission from 12 nearby rich clusters of galaxies are presented and interpreted in terms of dynamic cluster evolution. X-ray structures revealed by the Einstein Observatory imaging proportional counter in the range 0.25 to 3.0 keV were analyzed and used to classify the clusters based on their X-ray morphologies. Four categories are observed, consisting of spiral-rich clusters with low X-ray temperatures and velocity dispersions with broad and highly clumped emission, spiral-poor clusters with high X-ray temperatures and velocity dispersions with smoothly varying emission broadly or sharply peaked around a dominant galaxy, and clusters with emission typical of a cD galaxy in a poor cluster or group. The broad, highly clumped cluster emission is interpreted as a result of an early evolutionary stage, while the cD and centrally enhanced emissions represent successive later stages in X-ray galactic cluster evolution.
Forman William
Harnden Frank R. Jr.
Jones Christine
Mandel Eric
Murray Stephen S.
No associations
LandOfFree
The structure and evolution of X-ray clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The structure and evolution of X-ray clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The structure and evolution of X-ray clusters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-974406