A cooling flow cluster at redshift z = 0.2The cluster of galaxies 1E0839.9 + 2938, discovered in X-ray observations by Nesci et al. (1988), is characterized on the basis of VLA 6-cm radio observations, Whipple Observatory CCD photometry, and spectroscopic observations obtained with the Multiple Mirror Telescope and the 88-inch University of Hawaii Telescope at Mauna Kea. The data are presented in tables, maps, and sample images and spectra and briefly characterized. The bright X-ray object is identified with a cluster at redshift z = 0.195; its central galaxy has radio emission of 1.1 x 10 exp 24 W/Hz as well as strong optical line emission which is not restricted to its nucleus. It is concluded that 1E0839.9 + 2938 is a cooling-flow cluster similar to 3C295 (found at z = 0.461 by Henry et al., 1986). The need for space observations (by Rosat or the AXAF) to determine the object's X-ray luminosity distribution is indicated.
Document ID
19910071692
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Wolter, Anna
Schild, R. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Gioia, I. M.
Maccacaro, T. (Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; CNR, Istituto di Radioastronomia Bologna, Italy)
Morris, S. L. (Mount Wilson and Las Campanas Observatories Pasadena, CA, United States)