A Matched Filter Analysis of SDSS DR8 Photometry in the Vicinity of the Cetus Polar Stream

Abstract

We examine the region of sky in the vicinity of the Cetus Polar Stream and find indications of at least three narrow and metal poor streams at distances ranging from from 28 to 37 kpc and extending over 60 degrees of sky. We suggest that we may have resolved the substructure in this region into a number of relatively cold streams, and that the original Cetus Polar Stream detection may have sampled two or more of these streams. Similarities in distance and orientation suggest that these streams may be dynamically related and/or share a common origin.

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