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First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

- K. Akiyama, A. Alberdi, +344 authors L. Ziurys
- Physics
- The Astrophysical Journal
- 10 April 2019

When surrounded by a transparent emission region, black holes are expected to reveal a dark shadow caused by gravitational light bending and photon capture at the event horizon. To image and study… Expand

A wide star–black-hole binary system from radial-velocity measurements

- Jifeng Liu, Haotong Zhang, +52 authors X. Cui
- Physics, Medicine
- Nature
- 1 November 2019

TLDR

New tests of local Lorentz invariance of gravity with small-eccentricity binary pulsars

Some alternative gravity theories allow the Universal matter distribution to single out the existence of a preferred frame, which breaks the symmetry of local Lorentz invariance (LLI) for the… Expand

Improved effective-one-body model of spinning, nonprecessing binary black holes for the era of gravitational-wave astrophysics with advanced detectors

- Alejandro Boh'e, L. Shao, +17 authors B. Szil'agyi
- Physics
- 11 November 2016

We improve the accuracy of the effective-one-body (EOB) waveforms that were employed during the first observing run of Advanced LIGO for binaries of spinning, nonprecessing black holes by calibrating… Expand

Lorentz violation from cosmological objects with very high energy photon emissions

- L. Shao, Zhi-Guang Xiao, B. Ma
- Physics
- 12 November 2009

Abstract Lorentz violation (LV) is predicted by some quantum gravity theories, where photon dispersion relation is modified, and the speed of light becomes energy-dependent. Consequently, it results… Expand

New limits on the violation of local position invariance of gravity

Within the parameterized post-Newtonian (PPN) formalism, there could be an anisotropy of local gravity induced by an external matter distribution, even for a fully conservative metric theory of… Expand

Combined search for anisotropic birefringence in the gravitational-wave transient catalog GWTC-1

- L. Shao
- Physics
- 4 February 2020

The discovery of gravitational waves (GWs) provides an unprecedented arena to test general relativity, including the gravitational Lorentz invariance violation (gLIV). In the propagation of GWs, a… Expand

First M87 Event Horizon Telescope Results. II. Array and Instrumentation

- K. Akiyama, A. Alberdi, +337 authors L. Ziurys
- Physics
- The Astrophysical Journal
- 10 April 2019

The Event Horizon Telescope (EHT) is a very long baseline interferometry (VLBI) array that comprises millimeter- and submillimeter-wavelength telescopes separated by distances comparable to the… Expand

Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole.

- D. Psaltis, L. Medeiros, +184 authors Shan-Shan Zhao
- Medicine, Physics
- Physical review letters
- 2 October 2020

TLDR

Tests of local Lorentz invariance violation of gravity in the standard model extension with pulsars.

- L. Shao
- Physics, Medicine
- Physical review letters
- 26 February 2014

TLDR

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