# Using multichannel singular spectrum analysis to study galaxy dynamics

@article{Weinberg2020UsingMS, title={Using multichannel singular spectrum analysis to study galaxy dynamics}, author={Martin D. Weinberg and Michael S. Petersen}, journal={Monthly Notices of the Royal Astronomical Society}, year={2020} }

N-body simulations provide most of our insight into the structure and evolution of galaxies, but our analyses of these are often heuristic and from simple statistics. We propose a method that discovers the dynamics in space and time together by finding the most correlated temporal signals in multiple time-series of basis-function expansion coefficients and any other data fields of interest. The method extracts the dominant trends in the spatial variation of the gravitational field along with…

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Our situation as occupants of the Milky Way (MW) Galaxy, bombarded by the Sagittarius dwarf galaxy, provides an intimate view of physical processes that can lead to the dynamical heating of a…

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