742 citations · 1k across the 19 of their papers we have counts for
19 papers
Retarded potentials and radiation in odd dimensions
D. V. Gal'tsov, M. Khlopunov
Free massless fields of any spin in flat D-dimensional spacetime propagate at the speed of light. But the retarded fields produced by the corresponding point-like moving sources sh…
Photon regions and umbilic conditions in stationary axisymmetric spacetimes
K. V. Kobialko, D. V. Gal'tsov
Photon region (PR) in the strong gravitational field is defined as a compact region where photons can travel endlessly without going to infinity or disappearing at the event horizo…
Photon trapping in static axially symmetric spacetime
D. V. Gal'tsov, K. V. Kobialko
Recently, several new characteristics have been introduced to describe null geodesic structure of strong gravitational field, such as photon regions, transversely trapping surfaces…
Completing characterization of photon orbits in Kerr and Kerr-Newman metrics
D. V. Gal'tsov, K. V. Kobialko
Recently, several new characteristics have been introduced to describe null geodesic structure of stationary spacetimes, such as photon regions (PR) and transversely trapping surfa…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…
Branestrahlung: radiation in the particle-brane collision
Dmitry Gal'tsov, Elena Melkumova, Pavel Spirin
We calculate the radiation accompanying gravitational collision of the domain wall and the point particle in five-dimensional spacetime. This process, which can be regarded as bran…