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Wandering through the halls of astronomy departments around the country (or even reading preprints on the astro-ph archive), one hears a lot of interesting statements about the large-scale bulk flow of galaxies within 6000 km s-1:

"The Lauer-Postman result cannot be right; it does not agree with observed bulk flow measurements at 6000 km s-1 ."

"The Lauer-Postman result cannot be right; it does not agree with the fact that the IRAS dipole appears to have converged by 6000 km s-1."

"The observed bulk flow at 6000 km s-1 from Mark III is inconsistent with the predictions of the IRAS redshift survey."

"The Mark III and da Costa et al. [9] dipoles are inconsistent with one another at 6000 km s-1 ."

Clearly, much of the current controversy centers around the bulk flow at 6000 km s-1. Stéphane Courteau, Marc Postman, Dave Schlegel, Jeff Willick, and I have started a full-sky Tully-Fisher survey of galaxies specifically designed to nail down the bulk flow within a shell centered at 6000 km s-1. We have selected 297 Sb-Sc galaxies with 4500 < cz < 7000 km s-1 with appropriate inclinations and without morphological peculiarities, from the magnitude-limited full-sky redshift survey sample of [42] (we decided against using IRAS selection, given the large Tully-Fisher scatter observed for IRAS galaxies in [43]). The sky distribution of this sample is shown in Fig. 4b. For each galaxy, we measure the rotation curve using a long slit for the Halpha line, and are doing photometry in the Vand I bands. We have been granted observing time at Kitt Peak and Cerro Tololo for this survey, and we hope to finish in one year. Our estimate is that we will be able to measure the bulk flow of this shell with an error of 70 km s-1 , with an error ellipsoid that will be close to isotropic. We believe that this survey should resolve much of the controversy that is currently swirling around this very hot topic.

I would like to acknowledge my collaborators in the various projects I discuss here: the IRAS 1.2 Jy and ORS redshift surveys (Marc Davis, Alan Dressler, Karl Fisher, John Huchra, Ofer Lahav, Basílio Santiago, and Amos Yahil), the POTENT/Mark III analysis (David Burstein, Stéphane Courteau, Avishai Dekel, Sandy Faber, and Jeff Willick), and the two bulk flow projects described above (Stéphane Courteau, Tod Lauer, Marc Postman, David Schlegel, and Jeff Willick). I acknowledge the support of a Fellowship from the Alfred P. Sloan Foundation.

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