A Hubble constant measurement from superluminal motion of the jet in GW170817

@article{Hotokezaka2018AHC,
  title={A Hubble constant measurement from superluminal motion of the jet in GW170817},
  author={K. Hotokezaka and E. Nakar and O. Gottlieb and S. Nissanke and K. Masuda and G. Hallinan and K. Mooley and A. Deller},
  journal={Nature Astronomy},
  year={2018},
  pages={1-5}
}
The Hubble constant (H0) measures the current expansion rate of the Universe, and plays a fundamental role in cosmology. Tremendous effort has been dedicated over the past decades to measure H0 (refs. 1–10). Gravitational wave (GW) sources accompanied by electromagnetic (EM) counterparts offer an independent standard siren measurement of H0 (refs. 11–13), as demonstrated following the discovery of the neutron star merger, GW170817 (refs. 14–16). This measurement does not assume a cosmological… Expand

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References

SHOWING 1-10 OF 62 REFERENCES
The Hubble constant from SN Refsdal
Hubble Space Telescope observations from December 11 2015 detected the expected fifth counter image of SN Refsdal at $z = 1.49$. In this letter, we compare the time delay predictions from numerousExpand
A gravitational-wave standard siren measurement of the Hubble constant
TLDR
A measurement of the Hubble constant is reported that combines the distance to the source inferred purely from the gravitational-wave signal with the recession velocity inferred from measurements of the redshift using the electromagnetic data. Expand
The Megamaser Cosmology Project VIII. A Geometric Distance to NGC 5765b
As part of the Megamaser Cosmology Project (MCP), here we present a new geometric distance measurement to the megamaser galaxy NGC 5765b. Through a series of VLBI observations, we have confirmed theExpand
Prospects for Resolving the Hubble Constant Tension with Standard Sirens.
TLDR
It is shown that, with existing data, the inverse distance ladder formed from BOSS baryon acoustic oscillation measurements and the Pantheon supernova sample yields an H_{0} posterior near identical to the Planck CMB measurement. Expand
Measuring the viewing angle of GW170817 with electromagnetic and gravitational waves
The joint detection of gravitational waves (GWs) and electromagnetic (EM) radiation from the binary neutron star merger GW170817 ushered in a new era of multi-messenger astronomy. Joint GW-EMExpand
GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
On August 17, 2017 at 12:41:04 UTC the Advanced LIGO and Advanced Virgo gravitational-wave detectors made their first observation of a binary neutron star inspiral. The signal, GW170817, was detectedExpand
Precision standard siren cosmology
We discuss the constraints on the Hubble constant to be expected from standard siren sources in ground-based gravitational wave detectors. We consider binary neutron star and binary black holeExpand
Determining the Hubble constant from gravitational wave observations of merging compact binaries
Recent observations have accumulated compelling evidence that some short gamma-ray bursts (SGRBs) are associated with the mergers of neutron star (NS) binaries. This would indicate that the SGRBExpand
Elucidating $\Lambda$CDM: Impact of Baryon Acoustic Oscillation Measurements on the Hubble Constant Discrepancy
We examine the impact of baryon acoustic oscillation (BAO) scale measurements on the discrepancy between the value of the Hubble constant ($H_0$) inferred from the local distance ladder and fromExpand
Properties of the Binary Neutron Star Merger GW170817
On August 17, 2017, the Advanced LIGO and Advanced Virgo gravitational-wave detectors observed a low-mass compact binary inspiral. The initial sky localization of the source of the gravitational-waveExpand
...
1
2
3
4
5
...