Infrared emission from central dominant galaxies in X-ray luminous clusters

Details Infrared emission from central dominant galaxies in X-ray luminous clusters Infrared emission from central dominant galaxies in X-ray luminous clusters

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...351..406b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 351, March 10, 1990, p. 406-411. Research supported by the National Radio A

Astronomy and Astrophysics

Astronomy

56

Galactic Clusters, Infrared Sources (Astronomy), X Ray Sources, Emission Spectra, Galactic Mass, Interstellar Gas

Scientific paper

IRAS strip scans are used to study the emission properties of 27 dominant galaxies that lie in the center of clusters rich in hot gas. In this sample, 30 percent of the objects were detected at 12/25 microns, while 46 percent were detected at 60/100 microns. The ratio of the IR to optical flux densities is an order of magnitude greater than for elliptical and S0 galaxies. The presence of IR emission is not obviously correlated with z, m(v), Mv, the presence of young stellar populations, emission-line gas, the X-ray luminosity, or the cooling rate of hot gas.

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