Visiting dwarfs put home-grown galaxies in the shade

日期:2017-09-05 04:00:33 作者:强酮 阅读:

HOME-GROWN dwarf galaxies keep a low profile, while recent arrivals show off. This claim, if true, could explain the long-standing puzzle of why we have spotted so few dwarf galaxies near the Milky Way. Around 20 dwarf galaxies have so far been found near our galaxy – far fewer than expected based on simulations of how galactic matter clumps together. Elena D’Onghia of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, and George Lake of the University of Zurich, Switzerland,