Building an Acceleration Ladder with Tidal Streams and Pulsar Timing

Understand

We analyze stellar streams in action-angle coordinates combined with recent local direct acceleration measurements to provide joint constraints on the potential of our Galaxy.

• Our stream analysis uses the Kullback-Leibler divergence with a likelihood analysis based on the two-point correlation function.
• We provide joint constraints from pulsar accelerations and stellar streams for local and global parameters that describe the potential of the Milky Way (MW).
• Our goal is to build an ``acceleration ladder", where direct acceleration measurements that are currently limited in dynamic range are combined with indirect techniques that can access a much larger volume of the MW.