2 papers
gr-qc2021
Weighing the spacetime along the line of sight using times of arrival of electromagnetic signals
Mikołaj Korzyński, Jan Miśkiewicz, Julius Serbenta
We present a new method of measuring the mass density along the line of sight, based on precise measurements of the variations of the times of arrival (TOA's) of electromagnetic si…
gr-qc2018
Geometric optics in general relativity using bilocal operators
Michele Grasso, Mikołaj Korzyński, Julius Serbenta
We consider the standard problem of observational astronomy, i.e. the observations of light emission from a distant region of spacetime in general relativity. The goal is to descri…