Extending IceCube Low Energy Neutrino Searches for Dark Matter with DeepCore

The cubic-kilometer sized IceCube neutrino observatory in the glacial ice at the South Pole offers new opportunities for low-energy neutrino physics and astrophysics, in particular for indirect dark matter searches. An efficient veto against atmospheric muons at an early stage of an analysis is an important tool for background rejection. For low energies, this can be achieved by using the DeepCore in-fill array of IceCube as a fiducial volume and the surrounding IceCube detector as an active muon veto. We present newly developed veto techniques for dark matter searches with DeepCore. The effective use of DeepCore and the application of these vetos are discussed, drawing on the example of two recent IceCube indirect dark matter searches for signals from the Sun and the Galactic Center, respectively