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Open AccessJournal ArticleDOI

Measuring cosmic distances with standard sirens

Daniel E. Holz, +2 more
- 01 Dec 2018 - 
- Vol. 71, Iss: 12, pp 34-40
TLDR
In this paper, the distance to the merger of two massive compact objects is encoded by the gravitational waves accompanying the merger without the usual appeal to a hierarchy of length scales, and the distance can be expressed as a linear combination of the distances to the merging.
Abstract
The gravitational waves accompanying the merger of two massive compact objects encode the distance to the merger without the usual appeal to a hierarchy of length scales.

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Journal Article

The Observation of Gravitational Waves from a Binary Black Hole Merger

TL;DR: The first direct detection of gravitational waves and the first observation of a binary black hole merger were reported in this paper, with a false alarm rate estimated to be less than 1 event per 203,000 years, equivalent to a significance greater than 5.1σ.
Journal ArticleDOI

Multi-messenger Observations of a Binary Neutron Star

TL;DR: AGILE as discussed by the authors is an ASI space mission developed with programmatic support by INAF and INFN, which includes data gathered with the 1 meter Swope and 6.5 meter Magellan Telescopes located at Las Campanas Observatory, Chile.
Journal ArticleDOI

Gravitational waves from the quasicircular inspiral of compact binaries in Einstein-aether theory

TL;DR: In this paper, a binary system of nonspinning bodies in a quasicircular inspiral was studied under the framework of the Einstein-aether theory. And the expressions for the time-domain and frequency-domain waveforms, gravitational wave polarizations, and response functions for both ground-and space-based detectors in the post-Newtonian approximation were explicitly and analytically computed.
Journal ArticleDOI

Gravitational-lensing measurements push Hubble-constant discrepancy past 5σ

Johanna L. Miller
- 01 Mar 2020 - 
TL;DR: If the tension can be attributed to systematic errors, it could be a sign of new cosmological physics as mentioned in this paper, which could be interpreted as a sign that the tension is not due to systematic error.
Posted ContentDOI

Modeling that Predicts Elementary Particles and Explains Data about Dark Matter, Early Galaxies, and the Cosmos

TL;DR: In this article, the authors try to solve three decades-old physics challenges: enumerating all known elementary particles, describing dark matter, and describing mechanisms that govern the rate of expansion of the universe.
References
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Planck 2015 results - XIII. Cosmological parameters

Peter A. R. Ade, +337 more
TL;DR: In this article, the authors present a cosmological analysis based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation.
Journal ArticleDOI

Planck 2015 results. XIII. Cosmological parameters

Peter A. R. Ade, +260 more
TL;DR: In this paper, the authors present results based on full-mission Planck observations of temperature and polarization anisotropies of the CMB, which are consistent with the six-parameter inflationary LCDM cosmology.
Journal ArticleDOI

Observation of Gravitational Waves from a Binary Black Hole Merger

B. P. Abbott, +1011 more
TL;DR: This is the first direct detection of gravitational waves and the first observation of a binary black hole merger, and these observations demonstrate the existence of binary stellar-mass black hole systems.
Journal ArticleDOI

GW170817: observation of gravitational waves from a binary neutron star inspiral

B. P. Abbott, +1134 more
TL;DR: The association of GRB 170817A, detected by Fermi-GBM 1.7 s after the coalescence, corroborates the hypothesis of a neutron star merger and provides the first direct evidence of a link between these mergers and short γ-ray bursts.
Journal Article

The Observation of Gravitational Waves from a Binary Black Hole Merger

TL;DR: The first direct detection of gravitational waves and the first observation of a binary black hole merger were reported in this paper, with a false alarm rate estimated to be less than 1 event per 203,000 years, equivalent to a significance greater than 5.1σ.