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Stars ejected from the Galactic centre can be used to place importantconstraints on the Milky Way potential. Since existing hypervelocity stars aretoo distant to accurately determine orbits, we have conducted a search fornearby candidates using full three-dimensional velocities. Since the efficacyof such studies are often hampered by deficiencies in proper motion catalogs,we have chosen to utilize the reliable, high-precision SDSS Stripe 82 propermotion catalog. Although we do not find any candidates which have velocities inexcess of the escape speed, we identify 226 stars on orbits that are consistentwith Galactic centre ejection. This number is significantly larger than what wewould expect for halo stars on radial orbits and cannot be explained by disk orbulge contamination. If we restrict ourselves to metal-rich stars, we find 29candidates with [Fe/H] > -0.8 dex and 10 with [Fe/H] > -0.6 dex. Theirmetallicities are more consistent with what we expect for bulge ejecta, and sowe believe these candidates are especially deserving of further study. We havesupplemented this sample using our own radial velocities, developing analgorithm to use proper motions for optimizing candidate selection. Thistechnique provides considerable improvement on the blind spectroscopic sampleof SDSS, being able to identify candidates with an efficiency around 20 timesbetter than a blind search.

Red Runaways II: Low mass Hills stars in SDSS Stripe 82