Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344..104n&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 1, 1989, p. 104-110. Research supported by CNR and MPI.
Astronomy and Astrophysics
Astrophysics
13
Cooling Flows (Astrophysics), Cosmic X Rays, Galactic Clusters, Red Shift, Active Galactic Nuclei, Astronomical Photometry, Charge Coupled Devices, Elliptical Galaxies, Emission Spectra
Scientific paper
The X-ray cluster of galaxies IE 0839.9 + 2938 was serendipitously discovered with the Einstein Observatory. CCD imaging at R and V wavelengths show that the color of the dominant elliptical galaxy of this cluster is significantly bluer than the colors of the next brightest cluster galaxies. Strong emission lines, typical of cD galaxies with cooling flows, are present in the spectrum of the dominant galaxy, from which a redshift of 0.193 is derived. The emitting line region is spatially resolved with an extension of about 13 kpc. All the collected data suggest that this cluster is one of the most distant cooling flow clusters known to date.
Gioia Isabella Maria
Maccacaro Tommaso
Morris Simon L.
Nesci Roberto
Perola Giuseppe Cesare
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