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gr-qc2020★ 18 cited
Photon Emission from Circular Equatorial Kerr Orbiters
Delilah E. A. Gates, Shahar Hadar, Alexandru Lupsasca
We consider monochromatic and isotropic photon emission from circular equatorial Kerr orbiters. We derive analytic expressions for the photon escape probability and the redshift-de…
gr-qc2020
Maximum Observable Blueshift from Circular Equatorial Kerr Orbiters
Delilah E. A. Gates, Shahar Hadar, Alexandru Lupsasca
The region of spacetime near the event horizon of a black hole can be viewed as a deep potential well at large gravitational redshift relative to distant observers. However, matter…