The Distance to NGC 4993: The Host Galaxy of the Gravitational-wave Event GW170817

@article{Hjorth2017TheDT,
title={The Distance to NGC 4993: The Host Galaxy of the Gravitational-wave Event GW170817},
author={Jens Hjorth and Andrew J. Levan and Nial R. Tanvir and Joseph D. Lyman and Radosław Wojtak and Sophie L. Schr{\o}der and Ilya Mandel and Christa Gall and S. H. Bruun},
journal={arXiv: Astrophysics of Galaxies},
year={2017}
}
• Published 16 October 2017
• Physics
• arXiv: Astrophysics of Galaxies
The historic detection of gravitational waves from a binary neutron star merger (GW170817) and its electromagnetic counterpart led to the first accurate (sub-arcsecond) localization of a gravitational-wave event. The transient was found to be $\sim$10" from the nucleus of the S0 galaxy NGC 4993. We report here the luminosity distance to this galaxy using two independent methods. (1) Based on our MUSE/VLT measurement of the heliocentric redshift ($z_{\rm helio}=0.009783\pm0.000023$) we infer the…
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