Journal ArticleThe Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. V. Rising X-Ray Emission from an Off-axis JetMargutti, R.; Berger, E.; Fong, W.; Guidorzi, C.; Alexander, K. D.; Metzger, B. D.; Blanchard, P. K.; Cowperthwaite, P. S.; Chornock, R.; Eftekhari, T.; Nicholl, M.; Villar, V. A.; Williams, P. K.; Annis, J.; Brown, D. A.; Chen, H.; Doctor, Z.; Frieman, J. A.; Holz, D. E.; Sako, M.; Soares-Santos, M.2017-10-2010062275The Astrophysical Journal8482L202041-8213https://doi.org/10.3847/2041-8213/aa90571707954; 1708081; 1714498National Science Foundation