Distance and Properties of NGC 4993 as the Host Galaxy of the Gravitational-wave Source GW170817

  title={Distance and Properties of NGC 4993 as the Host Galaxy of the Gravitational-wave Source GW170817},
  author={Myungshin Im and Yongmin Yoon and Seong-Kook Lee and Hyung-Mok Lee and Joonho Kim and Chung-Uk Lee and Seung-Lee Kim and Eleonora Troja and Changsu Choi and Gu Lim and Jongwan Ko and Hyunjin Shim Ceousnu and Snu and Kasi and University of Maryland and NASAGoddard and Knu},
  journal={The Astrophysical Journal Letters},
  • M. Im, Yongmin Yoon, Knu
  • Published 16 October 2017
  • Physics
  • The Astrophysical Journal Letters
Recently, the optical counterpart of the gravitational-wave source GW170817 has been identified in the NGC 4993 galaxy. Together with evidence from observations in electromagnetic waves, the event has been suggested as a result of a merger of two neutron stars (NSs). We analyze the multi-wavelength data to characterize the host galaxy property and its distance to examine if the properties of NGC 4993 are consistent with this picture. Our analysis shows that NGC 4993 is a bulge-dominated galaxy… 

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