We introduce a new model for dark energy in the Universe in which a small cosmological constant is generated by ordinary electromagnetic vacuum energy. The...

By describing the dynamical evolution of a test charged particle in the presence of an electromagnetic field and a succession of infinitesimal Lorentz boosts...

Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron flux in the range 0.5 to 700 GeV...

Measurements of the electron density of populations of extragalactic H II regions in nearby galaxies remain limited, despite the relevance of this quantity for...

To explain the properties of the local galaxy population, theoretical models require active galactic nuclei (AGNs to inject energy into host galaxies, thereby...

We use Gemini GMOS-IFU observations of three luminous nearby Seyfert galaxies (Mrk 79, Mrk 348, and Mrk 607) to estimate the electron temperature (T e)...

Context. An electron-positron beam escaping from the magnetospheric vacuum gap of an accreting black hole interacts with recombination-line photons from...

A solar correlation tracker which compensates for image motion in the focal plane of a solar telescope is presented. The design has been implemented using...

A measurement of the electroweak (EW) production of two jets in association with a Z boson in proton-proton collisions at √{s}=13 {TeV} is presented, based on...