Buchdahl bound, photon ring, ISCO and radial acceleration in Einstein-æther theory

Kavli Affiliate: Anthony Lasenby | First 5 Authors: Yi-Hsiung Hsu, Anthony Lasenby, Will Barker, Amel Durakovic, Michael Hobson | Summary: Spherically symmetric Einstein-{ae}ther (E{AE}) theory with a Maxwell-like kinetic term is revisited. We consider a general choice of the metric and the ae{}ther field, finding that:~(i) there is a gauge freedom allowing one always to […]


Continue.. Buchdahl bound, photon ring, ISCO and radial acceleration in Einstein-æther theory

LHC EFT WG Note: Basis for Anomalous Quartic Gauge Couplings

Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Gauthier Durieux, Grant N. Remmen, Nicholas L. Rodd, O. J. P. Éboli, M. C. Gonzalez-Garcia | Summary: In this note, we give a definitive basis for the dimension-eight operators leading to quartic — but no cubic — interactions among electroweak gauge bosons. These are often called anomalous […]


Continue.. LHC EFT WG Note: Basis for Anomalous Quartic Gauge Couplings

Connecting dust and outflows in AGN: the intriguing case of NGC 6860

Kavli Affiliate: Norbert Schulz | First 5 Authors: Ioanna Psaradaki, Missagh Mehdipour, Daniele Rogantini, Elisa Costantini, Norbert Schulz | Summary: Cosmic dust plays a crucial role in the evolution of galaxies, significantly influencing star formation and the interstellar medium. However, in active galactic nuclei (AGN), the role and origin of dust remain poorly understood. High-resolution […]


Continue.. Connecting dust and outflows in AGN: the intriguing case of NGC 6860