Improved limits on intergalactic intracluster H I in the Coma Cluster

Details Improved limits on intergalactic intracluster H I in the Coma Cluster Improved limits on intergalactic intracluster H I in the Coma Cluster

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....76..127t&link_type=abstract

Astronomy and Astrophysics, vol. 76, no. 1, June 1979, p. 127-129.

Astronomy and Astrophysics

Astrophysics

2

Emission Spectra, Galactic Clusters, Hydrogen Clouds, Intergalactic Media, Microwave Spectra, Rotating Matter, Cold Gas, Graphs (Charts), Missing Mass (Astrophysics), Molecular Gases, Neutral Gases, Radio Telescopes

Scientific paper

New observations using the Arecibo telescope have failed to detect intergalactic intracluster H I in the Coma Cluster. This represents a factor of two improvements over our previously reported limit (Wright et al., 1974) and makes it less likely that the cluster can be dynamically bound by H I. The highly flattened, rapidly rotating, extremely dense, cold H I clouds permitted by the observations will not evaporate over the cluster lifetime, but violate global stability criteria and hence cannot provide the missing mass in the cluster.

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