Conveners
Waves and Fields in GR
- Daniel Charbulák
We derive and analyze particularly simple phantom scalar field solution within the Weyl geometry comparing it with the Curzon--Chazy spacetime. We show that this solution contains a wormhole throat which connects to a region that behaves like a one-directional time machine. We investigate its conformal structure and analyze a non-scalar singularity appearing on the boundary of the spacetime...
This paper is devoted to investigate the possible ways of distinguishing regular and singular black holes (BHs) in modified gravity (MOG) called regular MOG (RMOG) and Schwarzschild MOG (SMOG) BHs through observational data from twin peak quasiperiodic oscillations (QPOs) which are generated by test particles in stable orbits around the BHs. The presence of MOG field causes to sufficiently the...
Astonishing precision of gravitational wave detector LIGO
requires careful analysis of the signal with new data analysis
techniques. Recurrence quantification analysis is nonlinear method for
data analysis based on number and duration of recurrences in observed
data. It is especially useful for detection of deterministic behaviour
in apparently randomly distributed data generated by...