Results 21 to 30 of about 9,206 (285)

Influence of Magnetic Fields on the Gas Rotation in the Galaxy NGC 6946

The Astrophysical Journal, 2023
Magnetic fields can play an important role in the energy balance and formation of gas structures in galaxies. However, their dynamical effect on the rotation curve of galaxies is immensely unexplored.
M. Khademi, S. Nasiri, F. S. Tabatabaei
doaj   +1 more source

The Dynamics of Radio Galaxies and Double–Double Radio Galaxies [PDF]

Journal of Astrophysics and Astronomy, 2011
11 pages, 4 figures, Diffuse Radio Plasma Conference proceedings (held in Raman Research Institute, Bangalore, India)
Konar, C., Jamrozy, Marek, Hardcastle, M. J., Croston, J. H., Nandi, S., Saikia, D. J., Machalski, Jerzy   +6 more
openaire   +3 more sources

Formation of Transitional cE/UCD Galaxies through Massive/Dwarf Disc Galaxy Mergers

Galaxies, 2023
The dynamics of the merger of a dwarf disc galaxy with a massive spiral galaxy of the Milky Way type were studied in detail. The remnant of such interaction after numerous crossings of the satellite through the disc of the main galaxy was a compact ...
Alexander V. Khoperskov, Sergey S. Khrapov, Danila S. Sirotin   +2 more
doaj   +1 more source

Probing the Nonlinear Density Wave Theory of Spiral Galaxies by Baryonic Tully–Fisher Relation

Universe
The baryonic mass–velocity relation provides an important test of different galaxy dynamics models such as Lambda–cold dark matter (ΛCDM) and alternatives like Modified Newtonian Dynamics (MOND).
Miroslava Vukcevic, Djordje Savic, Predrag Jovanović   +2 more
doaj   +1 more source

Dynamical Blueprints for Galaxies [PDF]

The Astrophysical Journal, 2008
54 pages, 20 ...
Widrow, Lawrence M., Pym, Brent, Dubinski, John   +2 more
openaire   +2 more sources

A machian model as potential alternative to dark matter halo thesis in galactic rotational velocity prediction

Frontiers in Astronomy and Space Sciences
A novel axially symmetric metric is proposed to solve the Einstein field equations. This provides an analytical solution within the matter in the equatorial plane for any galaxy density profile.
Stephan Walrand
doaj   +1 more source

Probing the Disk Kinematics of M31 with DESI

Edinburgh Student Journal of Science
M31’s stellar rotation curve and disk line-of-sight dispersion is presented using kinematic data from a novel DESI M31 survey in combination with similar datasets.
Struan Stevenson
doaj   +1 more source

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

Advanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho, Seoyeon Park, Youngmin Lee, Sejoon Lee   +3 more
wiley   +1 more source

Refracted Gravity Solutions from Small to Large Scales

Astronomy
If visible matter alone is present in the Universe, general relativity (GR) and its Newtonian weak field limit (WFL) cannot explain several pieces of evidence, from the largest to the smallest scales.
Valentina Cesare
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source