A2597 - Another massive cooling flow

Details A2597 - Another massive cooling flow A2597 - Another massive cooling flow

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.236..277c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 236, Jan. 1, 1989, p. 277-287. Research supported by th

Astronomy and Astrophysics

Astronomy

26

Interstellar Gas, Star Clusters, Star Formation, Light Emission, Spectral Line Width, Ultraviolet Spectra, X Ray Spectra

Scientific paper

X-ray, optical and ultraviolet observations of the rich cluster A2597 are presented to confirm the presence of a central cooling flow. The intra-cluster gas is cooling at a rate of about 370 solar masses/yr and extended optical line-emitting gas is observed around the central galaxy over a radial distance of about 25 kpc. Examination of the blue continuum spectrum of the central galaxy indicates that only less than 0.1 solar mass/yr of detectable star formation is taking place. These stars are restricted to the mass range 1-3 solar masses/yr. The emission-line gas cannot be photoionized by OB stars.

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