Results 81 to 90 of about 250,232 (209)

The gas streamer G1–2–3 in the Galactic center

Astronomy & Astrophysics
The black hole in the Galactic center, Sgr A*, is prototypical of ultra-low-fed galactic nuclei. The discovery of a handful of gas clumps with masses on the order of a few Earth masses in its immediate vicinity provides a gas reservoir sufficient to ...
Gillessen S., Eisenhauer F., Cuadra J., Genzel R., Calderon D., Joharle S., Piran T., Ribeiro D. C., Russell C. M. P., Sadun Bordoni M., Burkert A., Bourdarot G., Drescher A., Mang F., Ott T., Agapito G., Agudo Berbel A., Baruffolo A., Bonaglia M., Black M., Briguglio R., Cao Y., Carbonaro L., Cresci G., Dallilar Y., Davies R., Deysenroth M., Di Antonio I., Di Cianno A., Di Rico G., Doelman D., Dolci M., Esposito S., Fantinel D., Ferruzzi D., Feuchtgruber H., Förster Schreiber N. M., Glauser A. M., Grani P., Hartl M., Henry D., Huber H., Keller C., Kenworthy M., Kravchenko K., Lightfoot J., Lunney D., Lutz D., Macintosh M., Mannucci F., Pearson D., Puglisi A., Rabien S., Rau C., Riccardi A., Salasnich B., Shimizu T., Snik F., Sturm E., Tacconi L. J., Taylor W., Valentini A., Waring C., Xompero M.   +63 more
doaj   +1 more source

Lorentz violation in gravity

, 2015
The study of gravitational theories without Lorentz invariance plays an important role to understand different aspects of gravitation. In this short contribution we will describe the construction, main advantages and some phenomenological considerations ...
Blas, Diego
core  

The Conservative Field of Coupled Newton–Coulomb Sources: Component Coupling Constants, Mass ⇌ Charge Cross-Forces, and Radiation from Reissner–Nordström Black Hole Mergers

Axioms
We investigate a combined conservative field, in which classical gravitational and electrostatic sources also exhibit mutual interactions. Hitherto neglected, the coupling between mass and charge may be necessary for constructing a unified conservative ...
Dimitris M. Christodoulou, Demosthenes Kazanas, Silas G. T. Laycock   +2 more
doaj   +1 more source

Dynamics and Formation of Obscuring Tori in AGNs

Frontiers in Astronomy and Space Sciences, 2017
We considered the evolution of a self-gravitating clumpy torus in the gravitational field of the central mass of an active galactic nucleus (AGN) in the framework of the N-body problem.
Elena Yu. Bannikova, Elena Yu. Bannikova, Alexey V. Sergeyev, Alexey V. Sergeyev   +3 more
doaj   +1 more source

Interpretation of Magnetism and Gravitation as Relational Residual Effects of the Electric Force

Magnetism
This article demonstrates that magnetic force and Newton’s law of universal gravitation can be derived from the solution of Maxwell’s equations for moving point charges. For this purpose, a plasma droplet model is postulated, consisting of an aggregation
Steffen Kühn
doaj   +1 more source

Entropy and Gravitation—From Black Hole Computers to Dark Energy and Dark Matter

Entropy, 2019
We show that the concept of entropy and the dynamics of gravitation provide the linchpin in a unified scheme to understand the physics of black hole computers, spacetime foam, dark energy, dark matter and the phenomenon of turbulence.
Y. Jack Ng
doaj   +1 more source

Electric-Magnetic Duality in Gravity and Higher-Spin Fields

Frontiers in Physics, 2019
Over the past two decades, electric-magnetic duality has made significant progress in linearized gravity and higher spin gauge fields in arbitrary dimensions.
Ashkbiz Danehkar
doaj   +1 more source

Quadratic Sagnac effect — the influence of the gravitational potential of the Coriolis force on the phase difference between the arms of a rotating Michelson interferometer (an explanation of D C Miller's experimental results 1921—1926) [PDF]

, 2015
G. B. Malykin, V. I. Pozdnyakova
openalex   +1 more source

Coupling of Gravitation and Electromagnetism in the Weak Field Approximation [PDF]

, 2000
Martin Tajmar, Clovis de Matos
openalex   +1 more source

Total gravitational mass of the Galactic Double Neutron Star systems: evidence for a bimodal distribution [PDF]

, 2018
Yong-Jia Huang, Jin-Liang Jiang, Xiang Li, Zhi-Ping Jin, Yi-Zhong Fan, Da-Ming Wei   +5 more
openalex   +1 more source