Results 101 to 110 of about 9,886 (203)

Superluminal motion of a relativistic jet in the neutron-star merger GW170817 [PDF]

open access: green, 2018
K. P. Mooley   +9 more
openalex   +1 more source

A Relativistic Jet in the Radio-quiet Active Galactic Nucleus Mrk 110

open access: yesThe Astrophysical Journal Letters
We report the discovery of a relativistic jet in Mrk 110, a narrow-line Seyfert 1 galaxy historically classified as a radio-quiet active galactic nucleus (AGN).
Ailing Wang   +6 more
doaj   +1 more source

The Speed of Light in Vacuum is not Constant in Any Circumstances

open access: yesReports in Advances of Physical Sciences
Is the speed of vacuum light constant under any circumstances? Based on dualism and its derivative theory, this paper makes an in-depth analysis of the speed of light in vacuum relative to various moving celestial bodies and different spatial states. The
Jian Wang
doaj   +1 more source

Be Careful in Multimessenger Inference of the Hubble Constant: A Path Forward for Robust Inference

open access: yesThe Astrophysical Journal Letters
Multimessenger observations of coalescing binary neutron stars (BNSs) using gravitational-wave (GW) and electromagnetic- (EM) wave signals are a direct probe of the expansion history of the Universe and carry the potential to shed light on the disparity ...
Michael Müller   +2 more
doaj   +1 more source

Particles in Relativistic Magnetohydrodynamic Jets. II. Bridging Jet Dynamics with Multi–wave band Nonthermal Emission Signatures

open access: yesThe Astrophysical Journal
Relativistic magnetized jets, originating near black holes, are observed to exhibit substructured flows. In this study, we present synthetic synchrotron-emission signatures for different lines of sight and frequencies, derived from three-dimensional ...
Ravi Pratap Dubey   +2 more
doaj   +1 more source

Hawking-type radiation in transluminal gratings. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Silveirinha MG.
europepmc   +1 more source

Field signature for apparently superluminal particle motion

open access: yesJournal of Physics: Conference Series, 2015
In the context of Stueckelberg's covariant symplectic mechanics, Horwitz and Aharonovich have proposed a simple mechanism by which a particle traveling below light speed almost everywhere may exhibit a transit time that suggests superluminal motion.
openaire   +2 more sources

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