128 citations · 635 across the 50 of their papers we have counts for
50 papers
Questions related to the Deflection of Light by Gravity determined by Soldner, Einstein and Schwarzschild
Klaus Wilhelm, Bhola N. Dwivedi, Karsten Muller
Before we discuss the deflection of light in a gravitational field, we give a brief overview of some basic physical formulas on photon properties, generation and propagation. The m…
Doppler, gravitational and cosmological redshifts
Klaus Wilhelm, Bhola N. Dwivedi
Ortiz and Ibarra-Castor (2024) have presented a "Generalized redshift formula" taking account of only energy conservation considerations. Contrary to their claim, we emphasize to i…
Gravitational matter-antimatter impact interactions
K. Wilhelm, B. N. Dwivedi
The production of antihydrogen by several research groups provides the opportunity to measure the gravitational behaviour of antimatter in the gravitational field of the Earth. The…
Quasi-periodic spicule-like cool jets driven by Alfvén pulses
B. Singh, A. K. Srivastava, K. Sharma +2
We perform a 2.5 dimensional magnetohydrodynamic (MHD) simulation to understand a comprehensive view of the formation of spicule-like cool jets due to initial transverse velocity p…
Evolution of Kelvin-Helmholtz Instability in the Fan-Spine Topology
Sudheer K. Mishra, Balveer Singh, A. K. Srivastava +2
We use multiwavelength imaging observations from the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) to study the evolution of Kelvin-Helmholtz (K-H…
On the radial acceleration of disk galaxies
Klaus Wilhelm, Bhola N. Dwivedi
The physical processes defining the dynamics of disk galaxies are still poorly understood. Hundreds of articles have appeared in the literature over the last decades without arrivi…