44 citations · 79 across the 3 of their papers we have counts for
3 papers
Polarization Whorls from M87* at the Event Horizon Telescope
Delilah Gates, Daniel Kapec, Alexandru Lupsasca +2
The Event Horizon Telescope (EHT) is expected to soon produce polarimetric images of the supermassive black hole at the center of the neighboring galaxy M87. There are indications…
Critical Emission from a High-Spin Black Hole
Alexandru Lupsasca, Achilleas P. Porfyriadis, Yichen Shi
We consider a rapidly spinning black hole surrounded by an equatorial, geometrically thin, slowly accreting disk that is stationary and axisymmetric. We analytically compute the br…
Photon Emission Near Extreme Kerr Black Holes
Achilleas P. Porfyriadis, Yichen Shi, Andrew Strominger
Ongoing astronomical efforts extract physical properties of black holes from electromagnetic emissions in their near-vicinity. This requires finding the null geodesics which extend…