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gr-qc2022
Temperature Anisotropy of the CMBR and the Non-zero Cosmological Constant
Jan Schee, Evariste N. Boj
We analyze the effect of a spherically symmetric clump on the anisotropy of the cosmic microwave background radiation temperature in the framework of the standard model of cosmolog…
gr-qc2022
Timing of echoes in electromagnetic radiation from hot spots orbiting a Kerr black hole impostor
Sudipta Hensh, Jan Schee, Zdeněk Stuchlík
We investigate the light curve of an isolated bright spot in a Keplerian orbit around a Kerr black hole candidate to probe possible deviations from the standard event-horizon pictu…