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Date and Time of the Query: 2019-06-26 T22:05:56 PDT
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For refcode 2000ApJ...543L..27W:
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Copyright by American Astronomical Society. Reproduced by permission
2000ApJ...543L..27W The Principal Axis of the Virgo Cluster Michael J. West Department of Physics and Astronomy, University of Hawaii at Hilo, Hilo, HI 96720 and John P. Blakeslee Department of Physics, University of Durham, Durham, DH1 3LE, England, UK; j.p.blakeslee@durham.ac.uk Received 2000 August 1; accepted 2000 September 1; published 2000 October 16 ABSTRACT Using accurate distances to individual Virgo Cluster galaxies obtained by the method of surface brightness fluctuations, we show that Virgo's brightest elliptical galaxies have a remarkably collinear arrangement in three dimensions. This axis, which is inclined by ~10^deg^-15^deg^ from the line of sight, can be traced to even larger scales where it appears to join a filamentary bridge of galaxies connecting Virgo to the rich cluster Abell 1367. The orientations of individual Virgo elliptical galaxies also show some tendency to be aligned with the cluster axis, as does the jet of the supergiant elliptical galaxy M87. These results suggest that the formation of the Virgo Cluster, and its brightest member galaxies, have been driven by infall of material along the Virgo-A1367 filament. Subject headings: galaxies: clusters: individual (Virgo)-galaxies: formation-large-scale structure of universe
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