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Large-scale homogeneity vs. small- scale inhomogeneity: testing ...

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01/18/2013<br />

What are peculiar velocities?<br />

• Peculiar velocity: the velocity of a galaxy separate<br />

from the Hubble flow<br />

• Due to gravitational interaction with nearby galaxies /<br />

overdensities<br />

Image: University of Oregon<br />

Morag I. Scrimgeour 27

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