... Virgo A (M87 or NGC 4486) is the second closest to the Milky Way active galaxy. ... arrival directions of the UHECRs with catalogs of potential sources, but no definite ...
... Virgo A (M87 or NGC 4486) is the second closest to the Milky Way active galaxy. ... arrival directions of the UHECRs with catalogs of potential sources, but no definite ...