‘Motion-picture’ method reveals shape of the Milky Way’s dark matter halo

An international team has pioneered a “motion-picture” method for measuring the precession rate of the Milky Way’s disk warp. Using a sample of Cepheid variable stars of different ages, this method allows the precession direction and rate of the Milky Way’s warp to be clearly observed. An international team has pioneered a “motion-picture” method for measuring the precession rate of the Milky Way’s disk warp. Using a sample of Cepheid variable stars of different ages, this method allows the precession direction and rate of the Milky Way’s warp to be clearly observed. Astronomy Phys.org – latest science and technology news stories