An international team of astronomers, astrophysicists and cosmologists, has found evidence of galaxy M64’s outer disk originating from a smaller, nearby, dwarf galaxy. The team has written a paper describing their findings that has been accepted for publication in The Astrophysical Journal Letters—in the meantime, it can be read on the arXiv preprint server.
Click here for original story, A closer look at galaxy M64’s outer disk shows that it came from a smaller dwarf galaxy
Source: Phys.org