#galactic dynamics

A new study suggests that pulsars can act as cosmic accelerometers, revealing tiny gravitational disturbances caused by dwarf galaxies orbiting the Milky Way. The method could open a new way to weigh satellite galaxies and map dark matter around our galaxy.

If one adopts the idea that these shells are ‘wrapped’ around the galaxy like a cosmic crepe, then Quinn proposes that the number of shells is dependent on the radial frequency and, in turn, the energy of the potential field.