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A Large‐scale Bulk Flow of Galaxy Clusters

  • Authors: Michael J. Hudson, Russell J. Smith, John R. Lucey, David J. Schlegel, and Roger L. Davies

Hudson et al. 1999 The Astrophysical Journal Letters 512 L79.

  • Provider: AAS Journals

Caption: Fig. 2.

Peculiar velocities projected onto a plane between ﹩\mathrm{SGX}\,=0﹩ and ﹩\mathrm{SGZ}\,=0﹩. The negative half of the horizontal axis points toward ﹩l=272^{\circ }﹩, ﹩b=-3^{\circ }﹩, which is only ~13° from the direction of the SMAC bulk flow. We plot only the 43 clusters within 45° of the plane. The shaded region indicates the zone of avoidance (﹩\vert b\vert < 15﹩). The distance to each cluster is indicated by the circle, and the CMB frame redshift is indicated by the tip of the vector. Outflowing clusters have filled circles and solid lines; inflowing ones have open circles and dotted lines. Circle size is inversely proportional to the error in the peculiar velocity. Important locations are indicated: the Local Group (LG), the Great Attractor (GA), the Shapley concentration (SC), and the Horologium‐Reticulum supercluster (HR).

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